1 files changed, 63 insertions, 0 deletions
diff --git a/dom/indexedDB/test/unit/test_unexpectedDirectory.js b/dom/indexedDB/test/unit/test_unexpectedDirectory.js
new file mode 100644
index 0000000000..5af56da1c8
--- /dev/null
+++ b/dom/indexedDB/test/unit/test_unexpectedDirectory.js
@@ -0,0 +1,63 @@
+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function getTestingFiles() {
+  const filenameBase = "unexpectedDirectory";
+  let baseDir = getRelativeFile("storage/permanent/chrome/idb");
+
+  let unexpectedDirWithoutSuffix = baseDir.clone();
+  unexpectedDirWithoutSuffix.append(filenameBase);
+
+  let unexpectedDir = baseDir.clone();
+  unexpectedDir.append(filenameBase + ".files");
+
+  return { unexpectedDirWithoutSuffix, unexpectedDir };
+}
+
+function createTestingEnvironment() {
+  let testingFiles = getTestingFiles();
+  testingFiles.unexpectedDir.create(
+    Ci.nsIFile.DIRECTORY_TYPE,
+    parseInt("0755", 8)
+  );
+
+  testingFiles.unexpectedDirWithoutSuffix.create(
+    Ci.nsIFile.DIRECTORY_TYPE,
+    parseInt("0755", 8)
+  );
+}
+
+/**
+ * This test verifies unexpected directories won't block idb's initialization.
+ */
+
+/* exported testSteps */
+async function testSteps() {
+  info("Verifying open shouldn't be blocked by unexpected files");
+
+  createTestingEnvironment();
+
+  let request = indexedDB.open(
+    this.window ? window.location.pathname : "Splendid Test",
+    1
+  );
+  await expectingUpgrade(request);
+
+  // Waiting for a success event for indexedDB.open()
+  let event = await expectingSuccess(request);
+
+  let testingFiles = getTestingFiles();
+  ok(
+    !testingFiles.unexpectedDir.exists(),
+    "The unexpected directory doesn't exist"
+  );
+  ok(
+    !testingFiles.unexpectedDirWithoutSuffix.exists(),
+    "The unexpected directory without the suffix doesn't exist"
+  );
+
+  let db = event.target.result;
+  db.close();
+}