1 files changed, 49 insertions, 0 deletions
diff --git a/devtools/client/framework/test/browser_toolbox_hosts_telemetry.js b/devtools/client/framework/test/browser_toolbox_hosts_telemetry.js
new file mode 100644
index 0000000000..92992048dd
--- /dev/null
+++ b/devtools/client/framework/test/browser_toolbox_hosts_telemetry.js
@@ -0,0 +1,49 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const { Toolbox } = require("resource://devtools/client/framework/toolbox.js");
+const { LEFT, RIGHT, BOTTOM, WINDOW } = Toolbox.HostType;
+
+const URL = "data:text/html;charset=utf8,browser_toolbox_hosts_telemetry.js";
+
+add_task(async function () {
+  startTelemetry();
+
+  info("Create a test tab and open the toolbox");
+  const tab = await addTab(URL);
+  const toolbox = await gDevTools.showToolboxForTab(tab, {
+    toolId: "webconsole",
+  });
+
+  await changeToolboxHost(toolbox);
+  await checkResults();
+});
+
+async function changeToolboxHost(toolbox) {
+  info("Switch toolbox host");
+  await toolbox.switchHost(RIGHT);
+  await toolbox.switchHost(WINDOW);
+  await toolbox.switchHost(BOTTOM);
+  await toolbox.switchHost(LEFT);
+  await toolbox.switchHost(RIGHT);
+  await toolbox.switchHost(WINDOW);
+  await toolbox.switchHost(BOTTOM);
+  await toolbox.switchHost(LEFT);
+  await toolbox.switchHost(RIGHT);
+}
+
+function checkResults() {
+  // Check for:
+  //   - 3 "bottom" entries.
+  //   - 2 "left" entries.
+  //   - 3 "right" entries.
+  //   - 2 "window" entries.
+  checkTelemetry(
+    "DEVTOOLS_TOOLBOX_HOST",
+    "",
+    { 0: 3, 1: 3, 2: 2, 4: 2, 5: 0 },
+    "array"
+  );
+}