1 files changed, 48 insertions, 0 deletions
diff --git a/toolkit/mozapps/extensions/test/xpcshell/test_remote_pref_telemetry.js b/toolkit/mozapps/extensions/test/xpcshell/test_remote_pref_telemetry.js
new file mode 100644
index 0000000000..aeeb368aa7
--- /dev/null
+++ b/toolkit/mozapps/extensions/test/xpcshell/test_remote_pref_telemetry.js
@@ -0,0 +1,48 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+AddonTestUtils.init(this);
+AddonTestUtils.createAppInfo(
+  "xpcshell@tests.mozilla.org",
+  "XPCShell",
+  "42",
+  "42"
+);
+
+// Need a profile dir to initialize Glean.
+add_setup(async () => {
+  do_get_profile();
+  Services.fog.initializeFOG();
+});
+
+add_task(async function test_remote_extensions_pref_telemetry() {
+  let original = Services.prefs.getBoolPref("extensions.webextensions.remote");
+  await AddonTestUtils.promiseStartupManager();
+
+  equal(
+    original,
+    Glean.extensions.useRemotePref.testGetValue(),
+    "useRemotePref flag in glean is correct."
+  );
+  equal(
+    original,
+    Glean.extensions.useRemotePolicy.testGetValue(),
+    "useRemotePolicy flag in glean is correct."
+  );
+
+  // Change the pref to simulate nimbus doing so after startup.
+  Services.prefs.setBoolPref("extensions.webextensions.remote", !original);
+
+  equal(
+    !original,
+    Glean.extensions.useRemotePref.testGetValue(),
+    "useRemotePref flag reflects the changed pref."
+  );
+  // EPS::UseRemoteExtensions() only reads the pref once, for consistency.
+  equal(
+    original,
+    Glean.extensions.useRemotePolicy.testGetValue(),
+    "useRemotePolicy flag still equal to original pref value."
+  );
+});