1 files changed, 45 insertions, 0 deletions
diff --git a/devtools/client/inspector/markup/test/browser_markup_grid_display_badge_telemetry.js b/devtools/client/inspector/markup/test/browser_markup_grid_display_badge_telemetry.js
new file mode 100644
index 0000000000..8bb3cc1441
--- /dev/null
+++ b/devtools/client/inspector/markup/test/browser_markup_grid_display_badge_telemetry.js
@@ -0,0 +1,45 @@
+/* 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 markup view.
+
+const TEST_URI = `
+  <style type="text/css">
+    #grid {
+      display: grid;
+    }
+  </style>
+  <div id="grid"></div>
+`;
+
+add_task(async function () {
+  await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));
+  startTelemetry();
+  const { inspector } = await openLayoutView();
+  const { highlighters, store } = inspector;
+
+  await selectNode("#grid", inspector);
+  const gridContainer = await getContainerForSelector("#grid", inspector);
+  const gridDisplayBadge = gridContainer.elt.querySelector(
+    ".inspector-badge.interactive[data-display]"
+  );
+
+  info("Toggling ON the CSS grid highlighter from the grid display badge.");
+  const onHighlighterShown = highlighters.once("grid-highlighter-shown");
+  const onCheckboxChange = waitUntilState(
+    store,
+    state => state.grids.length === 1 && state.grids[0].highlighted
+  );
+  gridDisplayBadge.click();
+  await onHighlighterShown;
+  await onCheckboxChange;
+
+  checkResults();
+});
+
+function checkResults() {
+  checkTelemetry("devtools.markup.gridinspector.opened", "", 1, "scalar");
+}