1 files changed, 143 insertions, 0 deletions
diff --git a/accessible/tests/browser/windows/uia/browser_relationProps.js b/accessible/tests/browser/windows/uia/browser_relationProps.js
new file mode 100644
index 0000000000..ff4059f99e
--- /dev/null
+++ b/accessible/tests/browser/windows/uia/browser_relationProps.js
@@ -0,0 +1,143 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+function testUiaRelationArray(id, prop, targets) {
+  return isUiaElementArray(
+    `findUiaByDomId(doc, "${id}").Current${prop}`,
+    targets,
+    `${id} has correct ${prop} targets`
+  );
+}
+
+/**
+ * Test the ControllerFor property.
+ */
+addUiaTask(
+  `
+<input id="controls" aria-controls="t1 t2">
+<input id="error" aria-errormessage="t3 t4" aria-invalid="true">
+<input id="controlsError" aria-controls="t1 t2" aria-errormessage="t3 t4" aria-invalid="true">
+<div id="t1">t1</div>
+<div id="t2">t2</div>
+<div id="t3">t3</div>
+<div id="t4">t4</div>
+<button id="none">none</button>
+  `,
+  async function testControllerFor() {
+    await definePyVar("doc", `getDocUia()`);
+    await testUiaRelationArray("controls", "ControllerFor", ["t1", "t2"]);
+    // The IA2 -> UIA proxy doesn't support IA2_RELATION_ERROR.
+    if (gIsUiaEnabled) {
+      await testUiaRelationArray("error", "ControllerFor", ["t3", "t4"]);
+      await testUiaRelationArray("controlsError", "ControllerFor", [
+        "t1",
+        "t2",
+        "t3",
+        "t4",
+      ]);
+    }
+    await testUiaRelationArray("none", "ControllerFor", []);
+  }
+);
+
+/**
+ * Test the DescribedBy property.
+ */
+addUiaTask(
+  `
+<input id="describedby" aria-describedby="t1 t2">
+<input id="details" aria-details="t3 t4">
+<input id="describedbyDetails" aria-describedby="t1 t2" aria-details="t3 t4" aria-invalid="true">
+<div id="t1">t1</div>
+<div id="t2">t2</div>
+<div id="t3">t3</div>
+<div id="t4">t4</div>
+<button id="none">none</button>
+  `,
+  async function testDescribedBy() {
+    await definePyVar("doc", `getDocUia()`);
+    await testUiaRelationArray("describedby", "DescribedBy", ["t1", "t2"]);
+    // The IA2 -> UIA proxy doesn't support IA2_RELATION_DETAILS.
+    if (gIsUiaEnabled) {
+      await testUiaRelationArray("details", "DescribedBy", ["t3", "t4"]);
+      await testUiaRelationArray("describedbyDetails", "DescribedBy", [
+        "t1",
+        "t2",
+        "t3",
+        "t4",
+      ]);
+    }
+    await testUiaRelationArray("none", "DescribedBy", []);
+  }
+);
+
+/**
+ * Test the FlowsFrom and FlowsTo properties.
+ */
+addUiaTask(
+  `
+<div id="t1" aria-flowto="t2">t1</div>
+<div id="t2">t2</div>
+<button id="none">none</button>
+  `,
+  async function testFlows() {
+    await definePyVar("doc", `getDocUia()`);
+    await testUiaRelationArray("t1", "FlowsTo", ["t2"]);
+    await testUiaRelationArray("t2", "FlowsFrom", ["t1"]);
+    await testUiaRelationArray("none", "FlowsFrom", []);
+    await testUiaRelationArray("none", "FlowsTo", []);
+  }
+);
+
+/**
+ * Test the LabeledBy property.
+ */
+addUiaTask(
+  `
+<label id="label">label</label>
+<input id="input" aria-labelledby="label">
+<label id="wrappingLabel">
+  <input id="wrappedInput" value="wrappedInput">
+  <p id="wrappingLabelP">wrappingLabel</p>
+</label>
+<button id="button" aria-labelledby="label">content</button>
+<button id="noLabel">noLabel</button>
+  `,
+  async function testLabeledBy() {
+    await definePyVar("doc", `getDocUia()`);
+    // input's LabeledBy should be label's text leaf.
+    let result = await runPython(`
+      input = findUiaByDomId(doc, "input")
+      label = findUiaByDomId(doc, "label")
+      labelLeaf = uiaClient.RawViewWalker.GetFirstChildElement(label)
+      return uiaClient.CompareElements(input.CurrentLabeledBy, labelLeaf)
+    `);
+    ok(result, "input has correct LabeledBy");
+    // wrappedInput's LabeledBy should be wrappingLabelP's text leaf.
+    result = await runPython(`
+      wrappedInput = findUiaByDomId(doc, "wrappedInput")
+      wrappingLabelP = findUiaByDomId(doc, "wrappingLabelP")
+      wrappingLabelLeaf = uiaClient.RawViewWalker.GetFirstChildElement(wrappingLabelP)
+      return uiaClient.CompareElements(wrappedInput.CurrentLabeledBy, wrappingLabelLeaf)
+    `);
+    ok(result, "wrappedInput has correct LabeledBy");
+    // button has aria-labelledby, but UIA prohibits LabeledBy on buttons.
+    ok(
+      !(await runPython(
+        `bool(findUiaByDomId(doc, "button").CurrentLabeledBy)`
+      )),
+      "button has no LabeledBy"
+    );
+    ok(
+      !(await runPython(
+        `bool(findUiaByDomId(doc, "noLabel").CurrentLabeledBy)`
+      )),
+      "noLabel has no LabeledBy"
+    );
+  },
+  // The IA2 -> UIA proxy doesn't expose LabeledBy properly.
+  { uiaEnabled: true, uiaDisabled: false }
+);