1 files changed, 73 insertions, 0 deletions
diff --git a/devtools/client/inspector/markup/test/browser_markup_tag_edit_01.js b/devtools/client/inspector/markup/test/browser_markup_tag_edit_01.js
new file mode 100644
index 0000000000..7de9f90a5b
--- /dev/null
+++ b/devtools/client/inspector/markup/test/browser_markup_tag_edit_01.js
@@ -0,0 +1,73 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+/* import-globals-from helper_attributes_test_runner.js */
+"use strict";
+
+// Test editing various markup-containers' attribute fields
+
+loadHelperScript("helper_attributes_test_runner.js");
+
+const TEST_URL = URL_ROOT + "doc_markup_edit.html";
+var TEST_DATA = [
+  {
+    desc: "Change an attribute",
+    node: "#node1",
+    originalAttributes: {
+      id: "node1",
+      class: "node1",
+    },
+    name: "class",
+    value: 'class="changednode1"',
+    expectedAttributes: {
+      id: "node1",
+      class: "changednode1",
+    },
+  },
+  {
+    desc:
+      'Try changing an attribute to a quote (") - this should result ' +
+      "in it being set to an empty string",
+    node: "#node22",
+    originalAttributes: {
+      id: "node22",
+      class: "unchanged",
+    },
+    name: "class",
+    value: 'class="""',
+    expectedAttributes: {
+      id: "node22",
+      class: "",
+    },
+  },
+  {
+    desc: "Remove an attribute",
+    node: "#node4",
+    originalAttributes: {
+      id: "node4",
+      class: "node4",
+    },
+    name: "class",
+    value: "",
+    expectedAttributes: {
+      id: "node4",
+    },
+  },
+  {
+    desc: "Try add attributes by adding to an existing attribute's entry",
+    node: "#node24",
+    originalAttributes: {
+      id: "node24",
+    },
+    name: "id",
+    value: 'id="node24" class="""',
+    expectedAttributes: {
+      id: "node24",
+      class: "",
+    },
+  },
+];
+
+add_task(async function () {
+  const { inspector } = await openInspectorForURL(TEST_URL);
+  await runEditAttributesTests(TEST_DATA, inspector);
+});