1 files changed, 42 insertions, 0 deletions
diff --git a/devtools/client/inspector/rules/test/browser_rules_grid-toggle-telemetry.js b/devtools/client/inspector/rules/test/browser_rules_grid-toggle-telemetry.js
new file mode 100644
index 0000000000..7ea229a734
--- /dev/null
+++ b/devtools/client/inspector/rules/test/browser_rules_grid-toggle-telemetry.js
@@ -0,0 +1,42 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test that the telemetry count is correct when the grid highlighter is activated from
+// the rules view.
+
+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>
+`;
+
+add_task(async function () {
+  await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));
+  startTelemetry();
+  const { inspector, view } = await openRuleView();
+  const HIGHLIGHTER_TYPE = inspector.highlighters.TYPES.GRID;
+  const { waitForHighlighterTypeShown } = getHighlighterTestHelpers(inspector);
+
+  await selectNode("#grid", inspector);
+  const container = getRuleViewProperty(view, "#grid", "display").valueSpan;
+  const gridToggle = container.querySelector(".js-toggle-grid-highlighter");
+
+  info("Toggling ON the CSS grid highlighter from the rule-view.");
+  const onHighlighterShown = waitForHighlighterTypeShown(HIGHLIGHTER_TYPE);
+  gridToggle.click();
+  await onHighlighterShown;
+
+  checkResults();
+});
+
+function checkResults() {
+  checkTelemetry("devtools.rules.gridinspector.opened", "", 1, "scalar");
+}