1 files changed, 35 insertions, 0 deletions
diff --git a/testing/web-platform/tests/IndexedDB/back-forward-cache-open-connection.window.js b/testing/web-platform/tests/IndexedDB/back-forward-cache-open-connection.window.js
new file mode 100644
index 0000000000..0021857d8b
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+++ b/testing/web-platform/tests/IndexedDB/back-forward-cache-open-connection.window.js
@@ -0,0 +1,35 @@
+// META: title=Testing BFCache support for page with open IndexedDB connection, and eviction behavior when receiving versionchange event.
+// META: script=/common/dispatcher/dispatcher.js
+// META: script=/common/utils.js
+// META: script=resources/support.js
+// META: script=/html/browsers/browsing-the-web/back-forward-cache/resources/rc-helper.js
+// META: script=/html/browsers/browsing-the-web/remote-context-helper/resources/remote-context-helper.js
+// META: timeout=long
+
+'use strict';
+
+promise_test(async t => {
+  const rcHelper = new RemoteContextHelper();
+
+  // Open a window with noopener so that BFCache will work.
+  const rc1 = await rcHelper.addWindow(
+      /*config=*/ null, /*options=*/ {features: 'noopener'});
+
+  await createIndexedDBForTesting(rc1, 'test_idb', 1);
+  await assertBFCacheEligibility(rc1, /*shouldRestoreFromBFCache=*/ true);
+
+  // The page is ensured to be eligible for BFCache even with open connection,
+  // otherwise the previous assertion will fail with PRECONDITION_FAILED.
+  // Now we can test if the versionchange event will evict the BFCache.
+  await createIndexedDBForTesting(rc1, 'test_idb_2', 1);
+
+  const rc2 = await rc1.navigateToNew();
+  // Create an IndexedDB database with higher version.
+  await createIndexedDBForTesting(rc2, 'test_idb_2', 2);
+  await rc2.historyBack();
+  // The previous page receiving versionchange event should be evicted with the
+  // correct reason.
+  // `kIgnoreEventAndEvict` will be reported as "Internal error".
+  // See `NotRestoredReasonToReportString()`.
+  await assertNotRestoredFromBFCache(rc1, ['Internal error']);
+});