diff -r 000000000000 -r 6474c204b198 dom/indexedDB/test/file.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/indexedDB/test/file.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,215 @@
+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+const DEFAULT_QUOTA = 50 * 1024 * 1024;
+
+var bufferCache = [];
+var utils = SpecialPowers.getDOMWindowUtils(window);
+
+if (!SpecialPowers.isMainProcess()) {
+  window.runTest = function() {
+    todo(false, "Test disabled in child processes, for now");
+    finishTest();
+  }
+}
+
+function getView(size)
+{
+  let buffer = new ArrayBuffer(size);
+  let view = new Uint8Array(buffer);
+  is(buffer.byteLength, size, "Correct byte length");
+  return view;
+}
+
+function getRandomView(size)
+{
+  let view = getView(size);
+  for (let i = 0; i < size; i++) {
+    view[i] = parseInt(Math.random() * 255)
+  }
+  return view;
+}
+
+function compareBuffers(buffer1, buffer2)
+{
+  if (buffer1.byteLength != buffer2.byteLength) {
+    return false;
+  }
+  let view1 = new Uint8Array(buffer1);
+  let view2 = new Uint8Array(buffer2);
+  for (let i = 0; i < buffer1.byteLength; i++) {
+    if (view1[i] != view2[i]) {
+      return false;
+    }
+  }
+  return true;
+}
+
+function getBlob(type, view)
+{
+  return SpecialPowers.unwrap(utils.getBlob([view], {type: type}));
+}
+
+function getFile(name, type, view)
+{
+  return SpecialPowers.unwrap(utils.getFile(name, [view], {type: type}));
+}
+
+function getRandomBlob(size)
+{
+  return getBlob("binary/random", getRandomView(size));
+}
+
+function getRandomFile(name, size)
+{
+  return getFile(name, "binary/random", getRandomView(size));
+}
+
+function getNullBlob(size)
+{
+  return getBlob("binary/null", getView(size));
+}
+
+function getNullFile(name, size)
+{
+  return getFile(name, "binary/null", getView(size));
+}
+
+function verifyBuffers(buffer1, buffer2)
+{
+  ok(compareBuffers(buffer1, buffer2), "Correct blob data");
+}
+
+function verifyBlob(blob1, blob2, fileId, blobReadHandler)
+{
+  is(blob1 instanceof Components.interfaces.nsIDOMBlob, true,
+     "Instance of nsIDOMBlob");
+  is(blob1 instanceof Components.interfaces.nsIDOMFile,
+     blob2 instanceof Components.interfaces.nsIDOMFile,
+     "Instance of nsIDOMFile");
+  is(blob1.size, blob2.size, "Correct size");
+  is(blob1.type, blob2.type, "Correct type");
+  if (blob2 instanceof Components.interfaces.nsIDOMFile) {
+    is(blob1.name, blob2.name, "Correct name");
+  }
+  is(utils.getFileId(blob1), fileId, "Correct file id");
+
+  let buffer1;
+  let buffer2;
+
+  for (let i = 0; i < bufferCache.length; i++) {
+    if (bufferCache[i].blob == blob2) {
+      buffer2 = bufferCache[i].buffer;
+      break;
+    }
+  }
+
+  if (!buffer2) {
+    let reader = new FileReader();
+    reader.readAsArrayBuffer(blob2);
+    reader.onload = function(event) {
+      buffer2 = event.target.result;
+      bufferCache.push({ blob: blob2, buffer: buffer2 });
+      if (buffer1) {
+        verifyBuffers(buffer1, buffer2);
+        if (blobReadHandler) {
+          blobReadHandler();
+        }
+        else {
+          testGenerator.next();
+        }
+      }
+    }
+  }
+
+  let reader = new FileReader();
+  reader.readAsArrayBuffer(blob1);
+  reader.onload = function(event) {
+    buffer1 = event.target.result;
+    if (buffer2) {
+      verifyBuffers(buffer1, buffer2);
+      if (blobReadHandler) {
+        blobReadHandler();
+      }
+      else {
+        testGenerator.next();
+      }
+    }
+  }
+}
+
+function verifyBlobArray(blobs1, blobs2, expectedFileIds)
+{
+  is(blobs1 instanceof Array, true, "Got an array object");
+  is(blobs1.length, blobs2.length, "Correct length");
+
+  if (!blobs1.length) {
+    return;
+  }
+
+  let verifiedCount = 0;
+
+  function blobReadHandler() {
+    if (++verifiedCount == blobs1.length) {
+      testGenerator.next();
+    }
+    else {
+      verifyBlob(blobs1[verifiedCount], blobs2[verifiedCount],
+                 expectedFileIds[verifiedCount], blobReadHandler);
+    }
+  }
+
+  verifyBlob(blobs1[verifiedCount], blobs2[verifiedCount],
+             expectedFileIds[verifiedCount], blobReadHandler);
+}
+
+function grabFileUsageAndContinueHandler(usage, fileUsage)
+{
+  testGenerator.send(fileUsage);
+}
+
+function getUsage(usageHandler)
+{
+  let comp = SpecialPowers.wrap(Components);
+  let quotaManager = comp.classes["@mozilla.org/dom/quota/manager;1"]
+                         .getService(comp.interfaces.nsIQuotaManager);
+
+  // We need to pass a JS callback to getUsageForURI. However, that callback
+  // takes an XPCOM URI object, which will cause us to throw when we wrap it
+  // for the content compartment. So we need to define the function in a
+  // privileged scope, which we do using a sandbox.
+  var sysPrin = SpecialPowers.Services.scriptSecurityManager.getSystemPrincipal();
+  var sb = new SpecialPowers.Cu.Sandbox(sysPrin);
+  sb.usageHandler = usageHandler;
+  var cb = SpecialPowers.Cu.evalInSandbox((function(uri, usage, fileUsage) {
+                                           usageHandler(usage, fileUsage); }).toSource(), sb);
+
+  let uri = SpecialPowers.wrap(window).document.documentURIObject;
+  quotaManager.getUsageForURI(uri, cb);
+}
+
+function getFileId(file)
+{
+  return utils.getFileId(file);
+}
+
+function hasFileInfo(name, id)
+{
+  return utils.getFileReferences(name, id);
+}
+
+function getFileRefCount(name, id)
+{
+  let count = {};
+  utils.getFileReferences(name, id, null, count);
+  return count.value;
+}
+
+function getFileDBRefCount(name, id)
+{
+  let count = {};
+  utils.getFileReferences(name, id, null, {}, count);
+  return count.value;
+}