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-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-expanded-false.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-expanded-true.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-expanded-undefined.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-false.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-mixed.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-true.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-undefined.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-ascending.html31
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-descending.html31
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-none.html31
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-other.html31
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-both.html17
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-inline.html17
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-list.html17
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-none.html17
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-document-aria-expanded-false.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-document-aria-expanded-true.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-document-aria-expanded-undefined.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-multiselectable-false.html14
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-multiselectable-true.html14
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-readonly-false.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-readonly-true.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-readonly-false.html16
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-readonly-true.html16
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-required-false.html16
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-required-true.html16
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-selected-false.html16
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-selected-true.html16
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-selected-undefined.html16
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-heading-aria-level-1.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-link-aria-expanded-false.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-link-aria-expanded-true.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-link-aria-expanded-undefined.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-multiselectable-false.html14
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-multiselectable-true.html14
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-required-false.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-required-true.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listitem-aria-level-1.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listitem-aria-posinset-1.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listitem-aria-setsize-1.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-false.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-mixed.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-true.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-undefined.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-posinset-1.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-selected-false.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-selected-true.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-selected-undefined.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-setsize-1.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-radiogroup-aria-required-false.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-radiogroup-aria-required-true.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-level-1.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-selected-false.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-selected-true.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-selected-undefined.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-ascending.html21
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-descending.html21
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-none.html21
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-other.html21
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-expanded-false.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-expanded-true.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-expanded-undefined.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-orientation-horizontal.html14
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-orientation-vertical.html14
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tab-aria-selected-false.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tab-aria-selected-true.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tab-aria-selected-undefined.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tablist-aria-level-1.html15
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-activedescendant-obj1.html14
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-both.html14
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-inline.html14
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-list.html14
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-none.html14
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-multiline-false.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-multiline-true.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-readonly-false.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-readonly-true.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-required-false.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-required-true.html12
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-multiselectable-false.html15
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-multiselectable-true.html15
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-required-false.html13
-rw-r--r--testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-required-true.html13
83 files changed, 1189 insertions, 0 deletions
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-expanded-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-expanded-false.html
new file mode 100644
index 0000000000..81e7807e17
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-expanded-false.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role button; supported state or property "aria-expanded" value of "false"</title>
+ </head>
+ <body>
+ <div id="test" role="button" aria-expanded="false">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-expanded-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-expanded-true.html
new file mode 100644
index 0000000000..6fd1ed8b6b
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-expanded-true.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role button; supported state or property "aria-expanded" value of "true"</title>
+ </head>
+ <body>
+ <div id="test" role="button" aria-expanded="true">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-expanded-undefined.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-expanded-undefined.html
new file mode 100644
index 0000000000..b51b006b97
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-expanded-undefined.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role button; supported state or property "aria-expanded" value of "undefined"</title>
+ </head>
+ <body>
+ <div id="test" role="button" aria-expanded="undefined">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-false.html
new file mode 100644
index 0000000000..c7aeae0a0a
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-false.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role button; supported state or property "aria-pressed" value of "false"</title>
+ </head>
+ <body>
+ <div id="test" role="button" aria-pressed="false">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-mixed.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-mixed.html
new file mode 100644
index 0000000000..510846d639
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-mixed.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role button; supported state or property "aria-pressed" value of "mixed"</title>
+ </head>
+ <body>
+ <div id="test" role="button" aria-pressed="mixed">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-true.html
new file mode 100644
index 0000000000..f99a0e1f5e
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-true.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role button; supported state or property "aria-pressed" value of "true"</title>
+ </head>
+ <body>
+ <div id="test" role="button" aria-pressed="true">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-undefined.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-undefined.html
new file mode 100644
index 0000000000..8591e12f07
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-button-aria-pressed-undefined.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role button; supported state or property "aria-pressed" value of "undefined"</title>
+ </head>
+ <body>
+ <div id="test" role="button" aria-pressed="undefined">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-ascending.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-ascending.html
new file mode 100644
index 0000000000..53fc144796
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-ascending.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role columnheader; supported state or property "aria-sort" value of "ascending"</title>
+ </head>
+ <body>
+ <div role="grid">
+ <div role="row">
+ <span id="test" role="columnheader" aria-sort="ascending">Placeholder content</span>
+ <span role="columnheader">header 2</span>
+ <span role="columnheader">header 3</span>
+ </div>
+ <div role="row">
+ <span role="gridcell" id="obj1">obj1</span>
+ <span role="gridcell">obj2</span>
+ <span role="gridcell">obj3</span>
+ </div>
+ <div role="row">
+ <span role="gridcell">obj1</span>
+ <span role="gridcell">obj2</span>
+ <span role="gridcell">obj3</span>
+ </div>
+ <div role="row">
+ <span role="gridcell">obj1</span>
+ <span role="gridcell">obj2</span>
+ <span role="gridcell">obj3</span>
+ </div>
+ </div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-descending.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-descending.html
new file mode 100644
index 0000000000..ebffc1be7c
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-descending.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role columnheader; supported state or property "aria-sort" value of "descending"</title>
+ </head>
+ <body>
+ <div role="grid">
+ <div role="row">
+ <span id="test" role="columnheader" aria-sort="descending">Placeholder content</span>
+ <span role="columnheader">header 2</span>
+ <span role="columnheader">header 3</span>
+ </div>
+ <div role="row">
+ <span role="gridcell" id="obj1">obj1</span>
+ <span role="gridcell">obj2</span>
+ <span role="gridcell">obj3</span>
+ </div>
+ <div role="row">
+ <span role="gridcell">obj1</span>
+ <span role="gridcell">obj2</span>
+ <span role="gridcell">obj3</span>
+ </div>
+ <div role="row">
+ <span role="gridcell">obj1</span>
+ <span role="gridcell">obj2</span>
+ <span role="gridcell">obj3</span>
+ </div>
+ </div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-none.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-none.html
new file mode 100644
index 0000000000..fce4f994d5
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-none.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role columnheader; supported state or property "aria-sort" value of "none"</title>
+ </head>
+ <body>
+ <div role="grid">
+ <div role="row">
+ <span id="test" role="columnheader" aria-sort="none">Placeholder content</span>
+ <span role="columnheader">header 2</span>
+ <span role="columnheader">header 3</span>
+ </div>
+ <div role="row">
+ <span role="gridcell" id="obj1">obj1</span>
+ <span role="gridcell">obj2</span>
+ <span role="gridcell">obj3</span>
+ </div>
+ <div role="row">
+ <span role="gridcell">obj1</span>
+ <span role="gridcell">obj2</span>
+ <span role="gridcell">obj3</span>
+ </div>
+ <div role="row">
+ <span role="gridcell">obj1</span>
+ <span role="gridcell">obj2</span>
+ <span role="gridcell">obj3</span>
+ </div>
+ </div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-other.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-other.html
new file mode 100644
index 0000000000..a92ba0bfc3
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-columnheader-aria-sort-other.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role columnheader; supported state or property "aria-sort" value of "other"</title>
+</head>
+<body>
+ <div role="grid">
+ <div role="row">
+ <span id="test" role="columnheader" aria-sort="other">Placeholder content</span>
+ <span role="columnheader">header 2</span>
+ <span role="columnheader">header 3</span>
+ </div>
+ <div role="row">
+ <span role="gridcell" id="obj1">obj1</span>
+ <span role="gridcell">obj2</span>
+ <span role="gridcell">obj3</span>
+ </div>
+ <div role="row">
+ <span role="gridcell">obj1</span>
+ <span role="gridcell">obj2</span>
+ <span role="gridcell">obj3</span>
+ </div>
+ <div role="row">
+ <span role="gridcell">obj1</span>
+ <span role="gridcell">obj2</span>
+ <span role="gridcell">obj3</span>
+ </div>
+ </div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-both.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-both.html
new file mode 100644
index 0000000000..93df0ede04
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-both.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role combobox; supported state or property "aria-autocomplete" value of
+ "both"
+ </title>
+ </head>
+ <body>
+ <input type="text" aria-label="Tag" role="combobox"
+ aria-autocomplete="both" aria-owns="owned_listbox" aria-activedescendant="selected_option" aria-expanded="true">
+ <ul role="listbox" id="owned_listbox">
+ <li role="option">Zebra</li>
+ <li role="option" id="selected_option">Zoom</li>
+ </ul>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-inline.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-inline.html
new file mode 100644
index 0000000000..cc202875c1
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-inline.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role combobox; supported state or property "aria-autocomplete" value of
+ "inline"
+ </title>
+ </head>
+ <body>
+ <input type="text" aria-label="Tag" role="combobox"
+ aria-autocomplete="inline" aria-owns="owned_listbox" aria-activedescendant="selected_option" aria-expanded="true">
+ <ul role="listbox" id="owned_listbox">
+ <li role="option">Zebra</li>
+ <li role="option" id="selected_option">Zoom</li>
+ </ul>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-list.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-list.html
new file mode 100644
index 0000000000..060bf24c7a
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-list.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role combobox; supported state or property "aria-autocomplete" value of
+ "list"
+ </title>
+ </head>
+ <body>
+ <input type="text" aria-label="Tag" role="combobox"
+ aria-autocomplete="list" aria-owns="owned_listbox" aria-activedescendant="selected_option" aria-expanded="true">
+ <ul role="listbox" id="owned_listbox">
+ <li role="option">Zebra</li>
+ <li role="option" id="selected_option">Zoom</li>
+ </ul>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-none.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-none.html
new file mode 100644
index 0000000000..33be42e05f
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-combobox-aria-autocomplete-none.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role combobox; supported state or property "aria-autocomplete" value of
+ "none"
+ </title>
+ </head>
+ <body>
+ <input type="text" aria-label="Tag" role="combobox"
+ aria-autocomplete="none" aria-owns="owned_listbox" aria-activedescendant="selected_option" aria-expanded="true">
+ <ul role="listbox" id="owned_listbox">
+ <li role="option">Zebra</li>
+ <li role="option" id="selected_option">Zoom</li>
+ </ul>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-document-aria-expanded-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-document-aria-expanded-false.html
new file mode 100644
index 0000000000..98703bd1e3
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-document-aria-expanded-false.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role document; supported state or property "aria-expanded" value of "false"</title>
+ </head>
+ <body>
+ <div id="test" role="document" aria-expanded="false">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-document-aria-expanded-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-document-aria-expanded-true.html
new file mode 100644
index 0000000000..b1ebb6b404
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-document-aria-expanded-true.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role document; supported state or property "aria-expanded" value of "true"</title>
+ </head>
+ <body>
+ <div id="test" role="document" aria-expanded="true">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-document-aria-expanded-undefined.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-document-aria-expanded-undefined.html
new file mode 100644
index 0000000000..320a98c824
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-document-aria-expanded-undefined.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role document; supported state or property "aria-expanded" value of "undefined"</title>
+ </head>
+ <body>
+ <div id="test" role="document" aria-expanded="undefined">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-multiselectable-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-multiselectable-false.html
new file mode 100644
index 0000000000..e5f6b6342a
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-multiselectable-false.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role grid; supported state or property "aria-multiselectable" value of
+ "false"
+ </title>
+ </head>
+ <body>
+ <div id="test" role="grid" aria-multiselectable="false">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-multiselectable-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-multiselectable-true.html
new file mode 100644
index 0000000000..2cba1e0d87
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-multiselectable-true.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role grid; supported state or property "aria-multiselectable" value of
+ "true"
+ </title>
+ </head>
+ <body>
+ <div id="test" role="grid" aria-multiselectable="true">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-readonly-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-readonly-false.html
new file mode 100644
index 0000000000..9793dfa069
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-readonly-false.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role grid; supported state or property "aria-readonly" value of "false"</title>
+ </head>
+ <body>
+ <div id="test" role="grid" aria-readonly="false">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-readonly-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-readonly-true.html
new file mode 100644
index 0000000000..ff2e3b82dd
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-grid-aria-readonly-true.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role grid; supported state or property "aria-readonly" value of "true"</title>
+ </head>
+ <body>
+ <div id="test" role="grid" aria-readonly="true">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-readonly-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-readonly-false.html
new file mode 100644
index 0000000000..682bd32cce
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-readonly-false.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role gridcell; supported state or property "aria-readonly" value of "false"</title>
+ </head>
+ <body>
+ <div role="grid">
+ <div role="row">
+ <div id="test" role="gridcell" aria-readonly="false">Placeholder content</div>
+ <div id="obj1" role="gridcell">obj1</div>
+ <div id="obj2" role="gridcell">obj2</div>
+ </div>
+ </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-readonly-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-readonly-true.html
new file mode 100644
index 0000000000..4d795cd2b4
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-readonly-true.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role gridcell; supported state or property "aria-readonly" value of "true"</title>
+ </head>
+ <body>
+ <div role="grid">
+ <div role="row">
+ <div id="test" role="gridcell" aria-readonly="true">Placeholder content</div>
+ <div id="obj1" role="gridcell">obj1</div>
+ <div id="obj2" role="gridcell">obj2</div>
+ </div>
+ </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-required-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-required-false.html
new file mode 100644
index 0000000000..7fe356c7c9
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-required-false.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role gridcell; supported state or property "aria-required" value of "false"</title>
+ </head>
+ <body>
+ <div role="grid">
+ <div role="row">
+ <div id="test" role="gridcell" aria-required="false">Placeholder content</div>
+ <div id="obj1" role="gridcell">obj1</div>
+ <div id="obj2" role="gridcell">obj2</div>
+ </div>
+ </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-required-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-required-true.html
new file mode 100644
index 0000000000..c3de53e713
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-required-true.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role gridcell; supported state or property "aria-required" value of "true"</title>
+ </head>
+ <body>
+ <div role="grid">
+ <div role="row">
+ <div id="test" role="gridcell" aria-required="true">Placeholder content</div>
+ <div id="obj1" role="gridcell">obj1</div>
+ <div id="obj2" role="gridcell">obj2</div>
+ </div>
+ </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-selected-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-selected-false.html
new file mode 100644
index 0000000000..339b0564e9
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-selected-false.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role gridcell; supported state or property "aria-selected" value of "false"</title>
+ </head>
+ <body>
+ <div role="grid">
+ <div role="row">
+ <div id="test" role="gridcell" aria-selected="false">Placeholder content</div>
+ <div id="obj1" role="gridcell">obj1</div>
+ <div id="obj2" role="gridcell">obj2</div>
+ </div>
+ </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-selected-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-selected-true.html
new file mode 100644
index 0000000000..8a52fab7aa
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-selected-true.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role gridcell; supported state or property "aria-selected" value of "true"</title>
+ </head>
+ <body>
+ <div role="grid">
+ <div role="row">
+ <div id="test" role="gridcell" aria-selected="true">Placeholder content</div>
+ <div id="obj1" role="gridcell">obj1</div>
+ <div id="obj2" role="gridcell">obj2</div>
+ </div>
+ </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-selected-undefined.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-selected-undefined.html
new file mode 100644
index 0000000000..d276b27c2c
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-gridcell-aria-selected-undefined.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role gridcell; supported state or property "aria-selected" value of "undefined"</title>
+ </head>
+ <body>
+ <div role="grid">
+ <div role="row">
+ <div id="test" role="gridcell" aria-selected="undefined">Placeholder content</div>
+ <div id="obj1" role="gridcell">obj1</div>
+ <div id="obj2" role="gridcell">obj2</div>
+ </div>
+ </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-heading-aria-level-1.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-heading-aria-level-1.html
new file mode 100644
index 0000000000..a57d5d59f3
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-heading-aria-level-1.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role heading; supported state or property "aria-level" value of "1"</title>
+ </head>
+ <body>
+ <div id="test" role="heading" aria-level="1">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-link-aria-expanded-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-link-aria-expanded-false.html
new file mode 100644
index 0000000000..a372b6e442
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-link-aria-expanded-false.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role link; supported state or property "aria-expanded" value of "false"</title>
+ </head>
+ <body>
+ <div id="test" role="link" aria-expanded="false">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-link-aria-expanded-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-link-aria-expanded-true.html
new file mode 100644
index 0000000000..0dcaa32a5e
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-link-aria-expanded-true.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role link; supported state or property "aria-expanded" value of "true"</title>
+ </head>
+ <body>
+ <div id="test" role="link" aria-expanded="true">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-link-aria-expanded-undefined.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-link-aria-expanded-undefined.html
new file mode 100644
index 0000000000..cd8e03704f
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-link-aria-expanded-undefined.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role link; supported state or property "aria-expanded" value of "undefined"</title>
+ </head>
+ <body>
+ <div id="test" role="link" aria-expanded="undefined">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-multiselectable-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-multiselectable-false.html
new file mode 100644
index 0000000000..d7c66a6e3e
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-multiselectable-false.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role listbox; supported state or property "aria-multiselectable" value
+ of "false"
+ </title>
+ </head>
+ <body>
+ <div id="test" role="listbox" aria-multiselectable="false">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-multiselectable-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-multiselectable-true.html
new file mode 100644
index 0000000000..e0378cecbe
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-multiselectable-true.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role listbox; supported state or property "aria-multiselectable" value
+ of "true"
+ </title>
+ </head>
+ <body>
+ <div id="test" role="listbox" aria-multiselectable="true">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-required-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-required-false.html
new file mode 100644
index 0000000000..18d6da189d
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-required-false.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role listbox; supported state or property "aria-required" value of "false"</title>
+ </head>
+ <body>
+ <div id="test" role="listbox" aria-required="false">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-required-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-required-true.html
new file mode 100644
index 0000000000..707442f0ed
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listbox-aria-required-true.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role listbox; supported state or property "aria-required" value of "true"</title>
+ </head>
+ <body>
+ <div id="test" role="listbox" aria-required="true">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listitem-aria-level-1.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listitem-aria-level-1.html
new file mode 100644
index 0000000000..fd6146a495
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listitem-aria-level-1.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role listitem; supported state or property "aria-level" value of "1"</title>
+ </head>
+ <body>
+ <div role="list"><div id="test" role="listitem" aria-level="1">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listitem-aria-posinset-1.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listitem-aria-posinset-1.html
new file mode 100644
index 0000000000..3cab9141ae
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listitem-aria-posinset-1.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role listitem; supported state or property "aria-posinset" value of "1"</title>
+ </head>
+ <body>
+ <div role="list"><div id="test" role="listitem" aria-posinset="1">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listitem-aria-setsize-1.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listitem-aria-setsize-1.html
new file mode 100644
index 0000000000..4ef2da2d38
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-listitem-aria-setsize-1.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role listitem; supported state or property "aria-setsize" value of "1"</title>
+ </head>
+ <body>
+ <div role="list"><div id="test" role="listitem" aria-setsize="1">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-false.html
new file mode 100644
index 0000000000..2bff3b29c2
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-false.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role option; supported state or property "aria-checked" value of "false"</title>
+ </head>
+ <body>
+ <div role="listbox"><div id="test" role="option" aria-checked="false">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-mixed.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-mixed.html
new file mode 100644
index 0000000000..33fee796a8
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-mixed.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role option; supported state or property "aria-checked" value of "mixed"</title>
+ </head>
+ <body>
+ <div role="listbox"><div id="test" role="option" aria-checked="mixed">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-true.html
new file mode 100644
index 0000000000..49c8209952
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-true.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role option; supported state or property "aria-checked" value of "true"</title>
+ </head>
+ <body>
+ <div role="listbox"><div id="test" role="option" aria-checked="true">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-undefined.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-undefined.html
new file mode 100644
index 0000000000..e372ff93ae
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-checked-undefined.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role option; supported state or property "aria-checked" value of "undefined"</title>
+ </head>
+ <body>
+ <div role="listbox"><div id="test" role="option" aria-checked="undefined">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-posinset-1.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-posinset-1.html
new file mode 100644
index 0000000000..7fbcc50427
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-posinset-1.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role option; supported state or property "aria-posinset" value of "1"</title>
+ </head>
+ <body>
+ <div role="listbox"><div id="test" role="option" aria-posinset="1">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-selected-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-selected-false.html
new file mode 100644
index 0000000000..56db6c2ae5
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-selected-false.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role option; supported state or property "aria-selected" value of "false"</title>
+ </head>
+ <body>
+ <div role="listbox"><div id="test" role="option" aria-selected="false">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-selected-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-selected-true.html
new file mode 100644
index 0000000000..eaf138f2ef
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-selected-true.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role option; supported state or property "aria-selected" value of "true"</title>
+ </head>
+ <body>
+ <div role="listbox"><div id="test" role="option" aria-selected="true">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj1</div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-selected-undefined.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-selected-undefined.html
new file mode 100644
index 0000000000..43489a0d2b
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-selected-undefined.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role option; supported state or property "aria-selected" value of "undefined"</title>
+ </head>
+ <body>
+ <div role="listbox"><div id="test" role="option" aria-selected="undefined">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-setsize-1.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-setsize-1.html
new file mode 100644
index 0000000000..6a8b379896
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-option-aria-setsize-1.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role option; supported state or property "aria-setsize" value of "1"</title>
+ </head>
+ <body>
+ <div role="listbox"><div id="test" role="option" aria-setsize="1">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-radiogroup-aria-required-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-radiogroup-aria-required-false.html
new file mode 100644
index 0000000000..fe956b50b2
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-radiogroup-aria-required-false.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role radiogroup; supported state or property "aria-required" value of "false"</title>
+ </head>
+ <body>
+ <div id="test" role="radiogroup" aria-required="false">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-radiogroup-aria-required-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-radiogroup-aria-required-true.html
new file mode 100644
index 0000000000..6bf6b11bef
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-radiogroup-aria-required-true.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role radiogroup; supported state or property "aria-required" value of "true"</title>
+ </head>
+ <body>
+ <div id="test" role="radiogroup" aria-required="true">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-level-1.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-level-1.html
new file mode 100644
index 0000000000..9c1ea0b174
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-level-1.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role row; supported state or property "aria-level" value of "1"</title>
+ </head>
+ <body>
+ <div role="grid"><div id="test" role="row" aria-level="1">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-selected-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-selected-false.html
new file mode 100644
index 0000000000..832fc16a1e
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-selected-false.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role row; supported state or property "aria-selected" value of "false"</title>
+ </head>
+ <body>
+ <div role="grid"><div id="test" role="row" aria-selected="false">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-selected-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-selected-true.html
new file mode 100644
index 0000000000..2977712b83
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-selected-true.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role row; supported state or property "aria-selected" value of "true"</title>
+ </head>
+ <body>
+ <div role="grid"><div id="test" role="row" aria-selected="true">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-selected-undefined.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-selected-undefined.html
new file mode 100644
index 0000000000..cc4f6a828a
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-row-aria-selected-undefined.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role row; supported state or property "aria-selected" value of "undefined"</title>
+ </head>
+ <body>
+ <div role="grid"><div id="test" role="row" aria-selected="undefined"><div role="gridcell">Placeholder content</div></div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-ascending.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-ascending.html
new file mode 100644
index 0000000000..79f3316a9e
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-ascending.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role rowheader; supported state or property "aria-sort" value of "ascending"</title>
+ </head>
+ <body>
+ <div role="grid">
+ <div role="row">
+ <span id="test" role="rowheader" aria-sort="ascending">Placeholder content</span>
+ <span role="gridcell" id="obj1">obj1</span>
+ <span role="gridcell" id="obj2">obj2</span>
+ </div>
+ <div role="row">
+ <span role="rowheader">header cell 2</span>
+ <span role="gridcell">obj1</span>
+ <span role="gridcell">obj2</span>
+ </div>
+ </div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-descending.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-descending.html
new file mode 100644
index 0000000000..beca847b75
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-descending.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role rowheader; supported state or property "aria-sort" value of "descending"</title>
+ </head>
+ <body>
+ <div role="grid">
+ <div role="row">
+ <span id="test" role="rowheader" aria-sort="descending">Placeholder content</span>
+ <span role="gridcell" id="obj1">obj1</span>
+ <span role="gridcell" id="obj2">obj2</span>
+ </div>
+ <div role="row">
+ <span role="rowheader">header cell 2</span>
+ <span role="gridcell">obj1</span>
+ <span role="gridcell">obj2</span>
+ </div>
+ </div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-none.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-none.html
new file mode 100644
index 0000000000..a1d466f652
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-none.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role rowheader; supported state or property "aria-sort" value of "none"</title>
+ </head>
+ <body>
+ <div role="grid">
+ <div role="row">
+ <span id="test" role="rowheader" aria-sort="none">Placeholder content</span>
+ <span role="gridcell" id="obj1">obj1</span>
+ <span role="gridcell" id="obj2">obj2</span>
+ </div>
+ <div role="row">
+ <span role="rowheader">header cell 2</span>
+ <span role="gridcell">obj1</span>
+ <span role="gridcell">obj2</span>
+ </div>
+ </div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-other.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-other.html
new file mode 100644
index 0000000000..6ed7626aa4
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-rowheader-aria-sort-other.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role rowheader; supported state or property "aria-sort" value of "other"</title>
+ </head>
+ <body>
+ <div role="grid">
+ <div role="row">
+ <span id="test" role="rowheader" aria-sort="other">Placeholder content</span>
+ <span role="gridcell" id="obj1">obj1</span>
+ <span role="gridcell" id="obj2">obj2</span>
+ </div>
+ <div role="row">
+ <span role="rowheader">header cell 2</span>
+ <span role="gridcell">obj1</span>
+ <span role="gridcell">obj2</span>
+ </div>
+ </div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-expanded-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-expanded-false.html
new file mode 100644
index 0000000000..a14c3c4382
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-expanded-false.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role separator; supported state or property "aria-expanded" value of "false"</title>
+ </head>
+ <body>
+ <div id="test" role="separator" aria-expanded="false">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-expanded-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-expanded-true.html
new file mode 100644
index 0000000000..c2d399ea47
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-expanded-true.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role separator; supported state or property "aria-expanded" value of "true"</title>
+ </head>
+ <body>
+ <div id="test" role="separator" aria-expanded="true">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-expanded-undefined.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-expanded-undefined.html
new file mode 100644
index 0000000000..8f350b7159
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-expanded-undefined.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role separator; supported state or property "aria-expanded" value of "undefined"</title>
+ </head>
+ <body>
+ <div id="test" role="separator" aria-expanded="undefined">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-orientation-horizontal.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-orientation-horizontal.html
new file mode 100644
index 0000000000..e888bb90e6
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-orientation-horizontal.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role separator; supported state or property "aria-orientation" value of
+ "horizontal"
+ </title>
+ </head>
+ <body>
+ <div id="test" role="separator" aria-orientation="horizontal">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-orientation-vertical.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-orientation-vertical.html
new file mode 100644
index 0000000000..5dec81b834
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-separator-aria-orientation-vertical.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role separator; supported state or property "aria-orientation" value of
+ "vertical"
+ </title>
+ </head>
+ <body>
+ <div id="test" role="separator" aria-orientation="vertical">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tab-aria-selected-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tab-aria-selected-false.html
new file mode 100644
index 0000000000..e0865918b0
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tab-aria-selected-false.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role tab; supported state or property "aria-selected" value of "false"</title>
+ </head>
+ <body>
+ <div role="tablist"><div id="test" role="tab" aria-selected="false">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tab-aria-selected-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tab-aria-selected-true.html
new file mode 100644
index 0000000000..61c5ecedec
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tab-aria-selected-true.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role tab; supported state or property "aria-selected" value of "true"</title>
+ </head>
+ <body>
+ <div role="tablist"><div id="test" role="tab" aria-selected="true">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tab-aria-selected-undefined.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tab-aria-selected-undefined.html
new file mode 100644
index 0000000000..9e7417a3c7
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tab-aria-selected-undefined.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role tab; supported state or property "aria-selected" value of "undefined"</title>
+ </head>
+ <body>
+ <div role="tablist"><div id="test" role="tab" aria-selected="undefined">Placeholder content</div></div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tablist-aria-level-1.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tablist-aria-level-1.html
new file mode 100644
index 0000000000..0e740d8fed
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tablist-aria-level-1.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role tablist; supported state or property "aria-level" value of "1"</title>
+ </head>
+ <body>
+ <div id="test" role="tablist" aria-level="1">
+ <div id="obj1" role="tab">obj1</div>
+ <div role="tablist" aria-level="2">
+ <div id="obj2" role="tab">obj2</div>
+ </div>
+ </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-activedescendant-obj1.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-activedescendant-obj1.html
new file mode 100644
index 0000000000..732dfa0d74
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-activedescendant-obj1.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>Test Case 234
+ </title>
+ </head>
+ <body>
+ <div id="test" role="textbox" aria-activedescendant="obj1" tabindex="0">Placeholder content
+ <div id="obj1" role="button">obj1</div>
+ </div>
+ <div id="obj2">obj2</div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-both.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-both.html
new file mode 100644
index 0000000000..8e6136e1eb
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-both.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role textbox; supported state or property "aria-autocomplete" value of
+ "both"
+ </title>
+ </head>
+ <body>
+ <div id="test" role="textbox" aria-autocomplete="both">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-inline.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-inline.html
new file mode 100644
index 0000000000..fa9e009852
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-inline.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role textbox; supported state or property "aria-autocomplete" value of
+ "inline"
+ </title>
+ </head>
+ <body>
+ <div id="test" role="textbox" aria-autocomplete="inline">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-list.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-list.html
new file mode 100644
index 0000000000..85d7bfa3b2
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-list.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role textbox; supported state or property "aria-autocomplete" value of
+ "list"
+ </title>
+ </head>
+ <body>
+ <div id="test" role="textbox" aria-autocomplete="list">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-none.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-none.html
new file mode 100644
index 0000000000..6594bd7263
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-autocomplete-none.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role textbox; supported state or property "aria-autocomplete" value of
+ "none"
+ </title>
+ </head>
+ <body>
+ <div id="test" role="textbox" aria-autocomplete="none">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-multiline-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-multiline-false.html
new file mode 100644
index 0000000000..6c047d141c
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-multiline-false.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role textbox; supported state or property "aria-multiline" value of "false"</title>
+ </head>
+ <body>
+ <div id="test" role="textbox" aria-multiline="false">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-multiline-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-multiline-true.html
new file mode 100644
index 0000000000..8231e43bc5
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-multiline-true.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role textbox; supported state or property "aria-multiline" value of "true"</title>
+ </head>
+ <body>
+ <div id="test" role="textbox" aria-multiline="true">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-readonly-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-readonly-false.html
new file mode 100644
index 0000000000..c007dab15b
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-readonly-false.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role textbox; supported state or property "aria-readonly" value of "false"</title>
+ </head>
+ <body>
+ <div id="test" role="textbox" aria-readonly="false">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-readonly-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-readonly-true.html
new file mode 100644
index 0000000000..6525bc02b5
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-readonly-true.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role textbox; supported state or property "aria-readonly" value of "true"</title>
+ </head>
+ <body>
+ <div id="test" role="textbox" aria-readonly="true">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-required-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-required-false.html
new file mode 100644
index 0000000000..eb496bc14b
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-required-false.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role textbox; supported state or property "aria-required" value of "false"</title>
+ </head>
+ <body>
+ <div id="test" role="textbox" aria-required="false">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-required-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-required-true.html
new file mode 100644
index 0000000000..88ebdd6a25
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-textbox-aria-required-true.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role textbox; supported state or property "aria-required" value of "true"</title>
+ </head>
+ <body>
+ <div id="test" role="textbox" aria-required="true">Placeholder content</div>
+ <div id="obj1">obj1</div>
+ <div id="obj2">obj2</div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-multiselectable-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-multiselectable-false.html
new file mode 100644
index 0000000000..17ffdcc6fb
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-multiselectable-false.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role tree; supported state or property "aria-multiselectable" value of
+ "false"
+ </title>
+ </head>
+ <body>
+ <div id="test" role="tree" aria-multiselectable="false">
+ <div role="treeitem" id="obj1">obj1</div>
+ <div role="treeitem" id="obj2">obj2</div>
+ </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-multiselectable-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-multiselectable-true.html
new file mode 100644
index 0000000000..9af7d0cc6c
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-multiselectable-true.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role tree; supported state or property "aria-multiselectable" value of
+ "true"
+ </title>
+ </head>
+ <body>
+ <div id="test" role="tree" aria-multiselectable="true">
+ <div role="treeitem" id="obj1">obj1</div>
+ <div role="treeitem" id="obj2">obj2</div>
+ </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-required-false.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-required-false.html
new file mode 100644
index 0000000000..d049bf6523
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-required-false.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role tree; supported state or property "aria-required" value of "false"</title>
+ </head>
+ <body>
+ <div id="test" role="tree" aria-required="false">
+ <div role="treeitem" id="obj1">obj1</div>
+ <div role="treeitem" id="obj2">obj2</div>
+ </div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-required-true.html b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-required-true.html
new file mode 100644
index 0000000000..86fbbc1a51
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/html-aria/roles-properties-supported/roles-properties-supported-tree-aria-required-true.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <title>&lt;div&gt; with role tree; supported state or property "aria-required" value of "true"</title>
+ </head>
+ <body>
+ <div id="test" role="tree" aria-required="true">
+ <div role="treeitem" id="obj1">obj1</div>
+ <div role="treeitem" id="obj2">obj2</div>
+ </div>
+ </body>
+</html>