Prototype implementation of MediaImportHandler.

chrome/test/data/file_manager/unit_tests/media_import_handler_unittest.js

Index: chrome/test/data/file_manager/unit_tests/media_import_handler_unittest.js
diff --git a/chrome/test/data/file_manager/unit_tests/media_import_handler_unittest.js b/chrome/test/data/file_manager/unit_tests/media_import_handler_unittest.js
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+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/**
+ * @type {!MockFileOperationManager}
+ */
+var fileOperationManager;
+
+/**
+ * @type {!MockMediaScanner}
+ */
+var mediaScanner;
+
+/**
+ * @type {!importer.MediaImportHandler}
+ */
+var mediaImporter;
+
+/**
+ * @type {!VolumeInfo}
+ */
+var drive;
+
+function setUp() {
+  // Set up string assets.
+  loadTimeData.data = {
+    DRIVE_DIRECTORY_LABEL: 'My Drive',
+    DOWNLOADS_DIRECTORY_LABEL: 'Downloads'
+  };
+
+  fileOperationManager = new MockFileOperationManager();
+
+  mediaScanner = new MockMediaScanner();
+
+  var volumeManager = new MockVolumeManager();
+  drive = volumeManager.getCurrentProfileVolumeInfo(
+      VolumeManagerCommon.VolumeType.DRIVE);
+  // Create fake parented and non-parented roots.
+  drive.fileSystem.populate([
+    '/root/',
+    '/other/'
+  ]);
+
+  MockVolumeManager.installMockSingleton(volumeManager);
+
+  mediaImporter =
+      new importer.MediaImportHandler(fileOperationManager, mediaScanner);
+}
+
+function testImportFrom(callback) {
+  // Set up a filesystem with some files.
+  var fileSystem = new MockFileSystem('fake-media-volume');
+  var filenames = [
+    '/DCIM/photos0/IMG00001.jpg',
+    '/DCIM/photos0/IMG00002.jpg',
+    '/DCIM/photos0/IMG00003.jpg',
+    '/DCIM/photos1/IMG00001.jpg',
+    '/DCIM/photos1/IMG00002.jpg',
+    '/DCIM/photos1/IMG00003.jpg'
+  ];
+  fileSystem.populate(filenames);
+  // Set up a fake destination for the import.
+  var destinationFileSystem = new MockFileSystem('fake-destination');
+  var destination = function() { return destinationFileSystem.root; };
+
+  // Set up some fake media scan results.
+  var media = filenames.map(function(filename) {
+    return fileSystem.entries[filename];
+  });
+  mediaScanner.setScanResults(media);
+
+  // Verify the results when the import operation is kicked off.
+  reportPromise(
+      fileOperationManager.whenPasteCalled().then(
+          function(args) {
+            // Verify that the task ID is correct.
+            assertEquals(importTask.taskId, args.opt_taskId);
+            // Verify that we're copying, not moving, files.
+            assertFalse(args.isMove);
+            // Verify that the sources are correct.
+            assertEntryListEquals(media, args.sourceEntries);
+            // Verify that the destination is correct.
+            assertEquals(destinationFileSystem.root, args.targetEntry);
+          }),
+      callback);
+  // Kick off an import
+  var importTask = mediaImporter.importMedia(fileSystem.root, destination);
+}
+
+/**
+ * Asserts that two lists contain the same set of Entries.  Entries are deemed
+ * to be the same if they point to the same full path.
+ */
+function assertEntryListEquals(list0, list1) {
+  assertEquals(list0.length, list1.length);
+
+  /** @param {!FileEntry} entry */
+  var entryToPath = function(entry) { return entry.fullPath; };
+
+  var paths0 = list0.map(entryToPath);
+  var paths1 = list1.map(entryToPath);
+  paths0.sort();
+  paths1.sort();
+
+  paths0.forEach(function(path, index) {
+    assertEquals(path, paths1[index]);
+  });
+}