1 files changed, 30 insertions, 0 deletions
diff --git a/browser/components/tests/unit/test_browserGlue_migration_social_cleanup.js b/browser/components/tests/unit/test_browserGlue_migration_social_cleanup.js
new file mode 100644
index 0000000000..00b59202a4
--- /dev/null
+++ b/browser/components/tests/unit/test_browserGlue_migration_social_cleanup.js
@@ -0,0 +1,30 @@
+const UI_VERSION = 69;
+const TOPIC_BROWSERGLUE_TEST = "browser-glue-test";
+const TOPICDATA_BROWSERGLUE_TEST = "force-ui-migration";
+
+var gBrowserGlue = Cc["@mozilla.org/browser/browserglue;1"].getService(
+  Ci.nsIObserver
+);
+
+Services.prefs.setIntPref("browser.migration.version", UI_VERSION - 1);
+
+add_task(async function test_check_cleanup_social_prefs() {
+  Services.prefs.setStringPref("social.manifest.example-com", "example.com");
+
+  // Simulate a migration.
+  gBrowserGlue.observe(
+    null,
+    TOPIC_BROWSERGLUE_TEST,
+    TOPICDATA_BROWSERGLUE_TEST
+  );
+
+  Assert.ok(
+    !Services.prefs.prefHasUserValue("social.manifest.example-com"),
+    "should have cleared old social preference 'social.manifest.example-com'"
+  );
+});
+
+registerCleanupFunction(() => {
+  Services.prefs.clearUserPref("browser.migration.version");
+  Services.prefs.clearUserPref("social.manifest.example-com");
+});