1 files changed, 37 insertions, 0 deletions
diff --git a/toolkit/components/glean/tests/browser/browser_fog_utility.js b/toolkit/components/glean/tests/browser/browser_fog_utility.js
new file mode 100644
index 0000000000..aaea9cfb42
--- /dev/null
+++ b/toolkit/components/glean/tests/browser/browser_fog_utility.js
@@ -0,0 +1,37 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+add_task(async () => {
+  const utilityProcessTest = Cc[
+    "@mozilla.org/utility-process-test;1"
+  ].createInstance(Ci.nsIUtilityProcessTest);
+  await utilityProcessTest
+    .startProcess()
+    .then(async () => {
+      Services.fog.testResetFOG();
+
+      is(
+        undefined,
+        Glean.testOnlyIpc.aCounter.testGetValue(),
+        "Ensure we begin without value."
+      );
+
+      await Services.fog.testTriggerMetrics(
+        Ci.nsIXULRuntime.PROCESS_TYPE_UTILITY
+      );
+      await Services.fog.testFlushAllChildren();
+
+      is(
+        Glean.testOnlyIpc.aCounter.testGetValue(),
+        Ci.nsIXULRuntime.PROCESS_TYPE_UTILITY,
+        "Ensure the utility-process-set value shows up in the parent process."
+      );
+    })
+    .catch(async () => {
+      ok(false, "Cannot start Utility process?");
+    });
+
+  await utilityProcessTest.stopProcess();
+});