1 files changed, 50 insertions, 0 deletions
diff --git a/dom/quota/test/common/test_simpledb.js b/dom/quota/test/common/test_simpledb.js
new file mode 100644
index 0000000000..dee7019097
--- /dev/null
+++ b/dom/quota/test/common/test_simpledb.js
@@ -0,0 +1,50 @@
+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+loadScript("dom/quota/test/common/file.js");
+
+async function testSteps() {
+  const name = "data";
+  const bufferSize = 100;
+
+  let database = getSimpleDatabase();
+
+  let request = database.open(name);
+  await requestFinished(request);
+
+  let buffer1 = getRandomBuffer(bufferSize);
+
+  request = database.write(buffer1);
+  await requestFinished(request);
+
+  request = database.seek(0);
+  await requestFinished(request);
+
+  request = database.read(bufferSize);
+  let result = await requestFinished(request);
+
+  let buffer2 = result.getAsArrayBuffer();
+
+  ok(compareBuffers(buffer1, buffer2), "Buffers equal.");
+
+  let database2 = getSimpleDatabase();
+
+  try {
+    request = database2.open(name);
+    await requestFinished(request);
+    ok(false, "Should have thrown!");
+  } catch (ex) {
+    ok(request.resultCode == NS_ERROR_STORAGE_BUSY, "Good result code.");
+  }
+
+  request = database.close();
+  await requestFinished(request);
+
+  request = database2.open(name);
+  await requestFinished(request);
+
+  request = database2.close();
+  await requestFinished(request);
+}