1 files changed, 27 insertions, 0 deletions
diff --git a/browser/components/newtab/test/browser/abouthomecache/browser_no_cache.js b/browser/components/newtab/test/browser/abouthomecache/browser_no_cache.js
new file mode 100644
index 0000000000..fdb51f8712
--- /dev/null
+++ b/browser/components/newtab/test/browser/abouthomecache/browser_no_cache.js
@@ -0,0 +1,27 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+requestLongerTimeout(2);
+
+/**
+ * Test that if there's no cache written, that we load the dynamic
+ * about:home document on startup.
+ */
+add_task(async function test_no_cache() {
+  await withFullyLoadedAboutHome(async browser => {
+    await clearCache();
+    // We're testing the no-cache case, so we bypass the automatic writing
+    // of the cache on shutdown, and we also don't need to wait for the
+    // cache to be available.
+    await simulateRestart(browser, {
+      withAutoShutdownWrite: false,
+      ensureCacheWinsRace: false,
+    });
+    await ensureDynamicAboutHome(
+      browser,
+      AboutHomeStartupCache.CACHE_RESULT_SCALARS.DOES_NOT_EXIST
+    );
+  });
+});