1 files changed, 70 insertions, 0 deletions
diff --git a/devtools/client/inspector/rules/test/browser_rules_edit-selector_04.js b/devtools/client/inspector/rules/test/browser_rules_edit-selector_04.js
new file mode 100644
index 0000000000..02a1feaac3
--- /dev/null
+++ b/devtools/client/inspector/rules/test/browser_rules_edit-selector_04.js
@@ -0,0 +1,70 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Tests that the selector highlighter is removed when modifying a selector and
+// the selector highlighter works for the newly added unmatched rule.
+
+const TEST_URI = `
+  <style type="text/css">
+    p {
+      background: red;
+    }
+  </style>
+  <p>Test the selector highlighter</p>
+`;
+
+add_task(async function () {
+  await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));
+  const { inspector, view } = await openRuleView();
+  await selectNode("p", inspector);
+
+  await testSelectorHighlight(view, "p");
+  await testEditSelector(inspector, view, "body");
+  await testSelectorHighlight(view, "body");
+});
+
+async function testSelectorHighlight(view, selector) {
+  info("Test creating selector highlighter");
+
+  info("Clicking on a selector icon");
+  const { highlighter, isShown } = await clickSelectorIcon(view, selector);
+
+  ok(highlighter, "The selector highlighter instance was created");
+  ok(isShown, "The selector highlighter was shown");
+}
+
+async function testEditSelector(inspector, view, name) {
+  info("Test editing existing selector fields");
+
+  const ruleEditor = getRuleViewRuleEditor(view, 1);
+
+  info("Focusing an existing selector name in the rule-view");
+  const editor = await focusEditableField(view, ruleEditor.selectorText);
+
+  is(
+    inplaceEditor(ruleEditor.selectorText),
+    editor,
+    "The selector editor got focused"
+  );
+
+  const onRuleViewChanged = view.once("ruleview-changed");
+  const { waitForHighlighterTypeHidden } = getHighlighterTestHelpers(inspector);
+  const onSelectorHighlighterHidden = waitForHighlighterTypeHidden(
+    inspector.highlighters.TYPES.SELECTOR
+  );
+
+  info("Entering a new selector name and committing");
+  editor.input.value = name;
+  EventUtils.synthesizeKey("KEY_Enter");
+
+  info("Waiting for Rules view to update");
+  await onRuleViewChanged;
+  await onSelectorHighlighterHidden;
+  const highlighter = inspector.highlighters.getActiveHighlighter(
+    inspector.highlighters.TYPES.SELECTOR
+  );
+
+  ok(!highlighter, "The highlighter instance was removed");
+}