1 files changed, 72 insertions, 0 deletions
diff --git a/dom/indexedDB/test/unit/test_readwriteflush_disabled.js b/dom/indexedDB/test/unit/test_readwriteflush_disabled.js
new file mode 100644
index 0000000000..6271959346
--- /dev/null
+++ b/dom/indexedDB/test/unit/test_readwriteflush_disabled.js
@@ -0,0 +1,72 @@
+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+/* exported testGenerator, disableWorkerTest */
+var disableWorkerTest = "Need a way to set temporary prefs from a worker";
+
+var testGenerator = testSteps();
+
+function* testSteps() {
+  const name = this.window
+    ? window.location.pathname
+    : "test_readwriteflush_disabled.js";
+
+  info("Resetting experimental pref");
+
+  if (this.window) {
+    SpecialPowers.pushPrefEnv(
+      {
+        set: [["dom.indexedDB.experimental", false]],
+      },
+      continueToNextStep
+    );
+    yield undefined;
+  } else {
+    resetExperimental();
+  }
+
+  info("Opening database");
+
+  let request = indexedDB.open(name);
+  request.onerror = errorHandler;
+  request.onupgradeneeded = continueToNextStepSync;
+  request.onsuccess = unexpectedSuccessHandler;
+
+  yield undefined;
+
+  // upgradeneeded
+  request.onupgradeneeded = unexpectedSuccessHandler;
+  request.onsuccess = continueToNextStepSync;
+
+  info("Creating objectStore");
+
+  request.result.createObjectStore(name);
+
+  yield undefined;
+
+  // success
+  let db = request.result;
+
+  info("Attempting to create a 'readwriteflush' transaction");
+
+  let exception;
+
+  try {
+    db.transaction(name, "readwriteflush");
+  } catch (e) {
+    exception = e;
+  }
+
+  ok(exception, "'readwriteflush' transaction threw");
+  ok(exception instanceof Error, "exception is an Error object");
+  is(
+    exception.message,
+    "IDBDatabase.transaction: 'readwriteflush' (value of argument 2) is not " +
+      "a valid value for enumeration IDBTransactionMode.",
+    "exception has the correct message"
+  );
+
+  finishTest();
+}