1 files changed, 79 insertions, 0 deletions
diff --git a/dom/indexedDB/test/unit/test_blob_file_backed.js b/dom/indexedDB/test/unit/test_blob_file_backed.js
new file mode 100644
index 0000000000..ba973d63d5
--- /dev/null
+++ b/dom/indexedDB/test/unit/test_blob_file_backed.js
@@ -0,0 +1,79 @@
+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+/* exported testGenerator, disableWorkerTest */
+var disableWorkerTest = "This test uses SpecialPowers";
+
+var testGenerator = testSteps();
+
+function* testSteps() {
+  const fileData = "abcdefghijklmnopqrstuvwxyz";
+  const fileType = "text/plain";
+
+  const databaseName = "window" in this ? window.location.pathname : "Test";
+  const objectStoreName = "foo";
+  const objectStoreKey = "10";
+
+  info("Creating temp file");
+
+  SpecialPowers.createFiles(
+    [{ data: fileData, options: { type: fileType } }],
+    function (files) {
+      testGenerator.next(files[0]);
+    }
+  );
+
+  let file = yield undefined;
+
+  ok(file instanceof File, "Got a File object");
+  is(file.size, fileData.length, "Correct size");
+  is(file.type, fileType, "Correct type");
+
+  let fileReader = new FileReader();
+  fileReader.onload = grabEventAndContinueHandler;
+  fileReader.readAsText(file);
+
+  let event = yield undefined;
+
+  is(fileReader.result, fileData, "Correct data");
+
+  let request = indexedDB.open(databaseName, 1);
+  request.onerror = errorHandler;
+  request.onupgradeneeded = grabEventAndContinueHandler;
+  request.onsuccess = grabEventAndContinueHandler;
+
+  event = yield undefined;
+
+  let db = event.target.result;
+  let objectStore = db.createObjectStore(objectStoreName);
+  objectStore.put(file, objectStoreKey);
+
+  event = yield undefined;
+
+  db = event.target.result;
+
+  file = null;
+
+  objectStore = db.transaction(objectStoreName).objectStore(objectStoreName);
+  objectStore.get(objectStoreKey).onsuccess = grabEventAndContinueHandler;
+
+  event = yield undefined;
+
+  file = event.target.result;
+
+  ok(file instanceof File, "Got a File object");
+  is(file.size, fileData.length, "Correct size");
+  is(file.type, fileType, "Correct type");
+
+  fileReader = new FileReader();
+  fileReader.onload = grabEventAndContinueHandler;
+  fileReader.readAsText(file);
+
+  event = yield undefined;
+
+  is(fileReader.result, fileData, "Correct data");
+
+  finishTest();
+}