1 files changed, 127 insertions, 0 deletions
diff --git a/devtools/client/inspector/compatibility/test/browser/browser_compatibility_dynamic_js-attribute-change.js b/devtools/client/inspector/compatibility/test/browser/browser_compatibility_dynamic_js-attribute-change.js
new file mode 100644
index 0000000000..6280e73278
--- /dev/null
+++ b/devtools/client/inspector/compatibility/test/browser/browser_compatibility_dynamic_js-attribute-change.js
@@ -0,0 +1,127 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const {
+  COMPATIBILITY_ISSUE_TYPE,
+} = require("resource://devtools/shared/constants.js");
+
+const {
+  COMPATIBILITY_UPDATE_NODE_COMPLETE,
+} = require("resource://devtools/client/inspector/compatibility/actions/index.js");
+
+// Test the behavior rules are dynamically added
+
+const ISSUE_OUTLINE_RADIUS = {
+  type: COMPATIBILITY_ISSUE_TYPE.CSS_PROPERTY,
+  property: "-moz-user-input",
+  url: "https://developer.mozilla.org/docs/Web/CSS/-moz-user-input",
+  deprecated: true,
+  experimental: false,
+};
+
+const ISSUE_HYPHENS = {
+  type: COMPATIBILITY_ISSUE_TYPE.CSS_PROPERTY_ALIASES,
+  aliases: ["hyphens"],
+  property: "hyphens",
+  url: "https://developer.mozilla.org/docs/Web/CSS/hyphens",
+  deprecated: false,
+  experimental: false,
+};
+
+const TEST_URI = `
+  <style>
+    .issue {
+      -moz-user-input: none;
+    }
+  </style>
+  <body>
+    <div class="test"></div>
+  </body>
+`;
+
+add_task(async function () {
+  info("Testing dynamic style change using JavaScript");
+  const tab = await addTab(
+    "data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI)
+  );
+
+  const { allElementsPane, inspector, selectedElementPane } =
+    await openCompatibilityView();
+
+  info("Testing inline style change due to JavaScript execution");
+  const onPanelUpdate = waitForUpdateSelectedNodeAction(inspector.store);
+  info("Select the div to undergo mutation");
+  await selectNode(".test", inspector);
+  await onPanelUpdate;
+
+  info("Check initial issues");
+  await assertIssueList(selectedElementPane, []);
+  await assertIssueList(allElementsPane, []);
+
+  info("Adding inline style with compatibility issue");
+  await testAttributeMutation(
+    tab,
+    inspector,
+    selectedElementPane,
+    allElementsPane,
+    [ISSUE_HYPHENS],
+    [ISSUE_HYPHENS],
+    async function () {
+      content.document.querySelector(".test").style.hyphens = "none";
+    }
+  );
+
+  info("Adding a class with declarations having compatibility issue");
+  await testAttributeMutation(
+    tab,
+    inspector,
+    selectedElementPane,
+    allElementsPane,
+    [ISSUE_HYPHENS, ISSUE_OUTLINE_RADIUS],
+    [ISSUE_HYPHENS, ISSUE_OUTLINE_RADIUS],
+    async function () {
+      content.document.querySelector(".test").classList.add("issue");
+    }
+  );
+
+  info("Removing a class with declarations having compatibility issue");
+  await testAttributeMutation(
+    tab,
+    inspector,
+    selectedElementPane,
+    allElementsPane,
+    [ISSUE_HYPHENS],
+    [ISSUE_HYPHENS],
+    async function () {
+      content.document.querySelector(".test").classList.remove("issue");
+    }
+  );
+
+  await removeTab(tab);
+});
+
+async function testAttributeMutation(
+  tab,
+  inspector,
+  selectedElementPane,
+  allElementsPane,
+  expectedSelectedElementIssues,
+  expectedAllElementsIssues,
+  contentTaskFunction
+) {
+  const onPanelUpdate = Promise.all([
+    inspector.once("markupmutation"),
+    waitForDispatch(inspector.store, COMPATIBILITY_UPDATE_NODE_COMPLETE),
+  ]);
+  info("Run the task in webpage context");
+  await ContentTask.spawn(tab.linkedBrowser, {}, contentTaskFunction);
+  info("Wait for changes to reflect");
+  await onPanelUpdate;
+
+  info("Check issues listed in selected element pane");
+  await assertIssueList(selectedElementPane, expectedSelectedElementIssues);
+  info("Check issues listed in all issues pane");
+  await assertIssueList(allElementsPane, expectedAllElementsIssues);
+}