1 files changed, 41 insertions, 0 deletions
diff --git a/devtools/client/inspector/rules/test/browser_rules_grid-highlighter-on-navigate.js b/devtools/client/inspector/rules/test/browser_rules_grid-highlighter-on-navigate.js
new file mode 100644
index 000000000..617eb00da
--- /dev/null
+++ b/devtools/client/inspector/rules/test/browser_rules_grid-highlighter-on-navigate.js
@@ -0,0 +1,41 @@
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test that grid highlighter is hidden on page navigation.
+
+const TEST_URI = `
+  <style type='text/css'>
+    #grid {
+      display: grid;
+    }
+  </style>
+  <div id="grid">
+    <div id="cell1">cell1</div>
+    <div id="cell2">cell2</div>
+  </div>
+`;
+
+const TEST_URI_2 = "data:text/html,<html><body>test</body></html>";
+
+add_task(function* () {
+  yield addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));
+  let {inspector, view} = yield openRuleView();
+  let highlighters = view.highlighters;
+
+  yield selectNode("#grid", inspector);
+  let container = getRuleViewProperty(view, "#grid", "display").valueSpan;
+  let gridToggle = container.querySelector(".ruleview-grid");
+
+  info("Toggling ON the CSS grid highlighter from the rule-view.");
+  let onHighlighterShown = highlighters.once("highlighter-shown");
+  gridToggle.click();
+  yield onHighlighterShown;
+
+  ok(highlighters.gridHighlighterShown, "CSS grid highlighter is shown.");
+
+  yield navigateTo(inspector, TEST_URI_2);
+  ok(!highlighters.gridHighlighterShown, "CSS grid highlighter is hidden.");
+});