1 files changed, 59 insertions, 0 deletions
diff --git a/toolkit/mozapps/update/tests/browser/browser_aboutPrefs_bc_downloaded_staging.js b/toolkit/mozapps/update/tests/browser/browser_aboutPrefs_bc_downloaded_staging.js
new file mode 100644
index 0000000000..73804cdf7a
--- /dev/null
+++ b/toolkit/mozapps/update/tests/browser/browser_aboutPrefs_bc_downloaded_staging.js
@@ -0,0 +1,59 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test for about:preferences background check for updates
+// with the update downloaded and about:preferences opened during staging.
+add_task(async function aboutPrefs_backgroundCheck_downloaded_staged() {
+  await SpecialPowers.pushPrefEnv({
+    set: [[PREF_APP_UPDATE_STAGING_ENABLED, true]],
+  });
+
+  let lankpackCall = mockLangpackInstall();
+
+  // Since the partial should be successful specify an invalid size for the
+  // complete update.
+  let params = {
+    queryString: "&invalidCompleteSize=1",
+    backgroundUpdate: true,
+    waitForUpdateState: STATE_PENDING,
+  };
+  await runAboutPrefsUpdateTest(params, [
+    {
+      panelId: "applying",
+      checkActiveUpdate: { state: STATE_PENDING },
+      continueFile: CONTINUE_STAGING,
+    },
+    async tab => {
+      // Once the state is pending but langpacks aren't complete the about
+      // dialog should still be showing downloading.
+      TestUtils.waitForCondition(() => {
+        return readStatusFile() == STATE_APPLIED;
+      });
+
+      let updateDeckId = await SpecialPowers.spawn(
+        tab.linkedBrowser,
+        [],
+        () => {
+          return content.gAppUpdater.selectedPanel.id;
+        }
+      );
+
+      is(updateDeckId, "applying", "UI should still show as applying.");
+
+      let { appVersion, resolve } = await lankpackCall;
+      is(
+        appVersion,
+        Services.appinfo.version,
+        "Should see the right app version."
+      );
+      resolve();
+    },
+    {
+      panelId: "apply",
+      checkActiveUpdate: { state: STATE_APPLIED },
+      continueFile: null,
+    },
+  ]);
+});