1 files changed, 30 insertions, 0 deletions
diff --git a/toolkit/profile/xpcshell/test_select_backgroundtasks_ephemeral.js b/toolkit/profile/xpcshell/test_select_backgroundtasks_ephemeral.js
new file mode 100644
index 0000000000..982df276db
--- /dev/null
+++ b/toolkit/profile/xpcshell/test_select_backgroundtasks_ephemeral.js
@@ -0,0 +1,30 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/*
+ * Verify that background tasks don't touch `profiles.ini` for ephemeral profile
+ * tasks.
+ */
+
+let condition = {
+  skip_if: () => !AppConstants.MOZ_BACKGROUNDTASKS,
+};
+
+add_task(condition, async () => {
+  writeProfilesIni(BACKGROUNDTASKS_PROFILE_DATA);
+
+  // Pretend that this is a background task.  For a task that uses an ephemeral
+  // profile, `profiles.ini` is untouched.
+  const bts = Cc["@mozilla.org/backgroundtasks;1"].getService(
+    Ci.nsIBackgroundTasks
+  );
+  bts.overrideBackgroundTaskNameForTesting("ephemeral_profile");
+
+  let { didCreate } = selectStartupProfile();
+  checkStartupReason("backgroundtask-ephemeral");
+
+  Assert.equal(didCreate, true, "Created new ephemeral profile");
+
+  let profileData = readProfilesIni();
+  Assert.deepEqual(BACKGROUNDTASKS_PROFILE_DATA, profileData);
+});