Add an unittest for background/volume_manager.js

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

Index: chrome/test/data/file_manager/unit_tests/volume_manager_unittest.js
diff --git a/chrome/test/data/file_manager/unit_tests/volume_manager_unittest.js b/chrome/test/data/file_manager/unit_tests/volume_manager_unittest.js
new file mode 100644
index 0000000000000000000000000000000000000000..f2e8bb690f553fa3e4663a0471d347bb082a6c57
--- /dev/null
+++ b/chrome/test/data/file_manager/unit_tests/volume_manager_unittest.js
@@ -0,0 +1,240 @@
+// 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.
+
+var chrome;
+
+loadTimeData.data = {
+  DRIVE_DIRECTORY_LABEL: 'My Drive',
+  DOWNLOADS_DIRECTORY_LABEL: 'Downloads'
+};
+
+function setUp() {
+  // Set up mock of chrome.fileManagerPrivate APIs.
+  chrome = {
+    fileManagerPrivate: {
+      mountSourcePath_: null,
+      onMountCompletedListeners_: [],
+      onDriveConnectionStatusChangedListeners_: [],
+      addMount: function(fileUrl, callback) {
+        callback(chrome.fileManagerPrivate.mountSourcePath_);
+      },
+      removeMount: function(volumeId) {
+        var event = {
+          eventType: 'unmount',
+          status: 'success',
+          volumeMetadata: {
+            volumeId: volumeId
+          }
+        };
+        chrome.fileManagerPrivate.onMountCompleted.dispatchEvent(event);
+      },
+      onDriveConnectionStatusChanged: {
+        addListener: function(listener) {
+          chrome.fileManagerPrivate.onDriveConnectionStatusChangedListeners_
+              .push(listener);
+        },
+        dispatchEvent: function(event) {
+          chrome.fileManagerPrivate
+              .onDriveConnectionStatusChangedListeners_
+              .forEach(function(listener) { listener(event); });
+        }
+      },
+      onMountCompleted: {
+        addListener: function(listener) {
+          chrome.fileManagerPrivate.onMountCompletedListeners_.push(listener);
+        },
+        dispatchEvent: function(event) {
+          chrome.fileManagerPrivate
+              .onMountCompletedListeners_.forEach(function(listener) {
+            listener(event);
+          });
+        }
+      },
+      getDriveConnectionState: function(callback) {
+        callback(chrome.fileManagerPrivate.driveConnectionState_);
+      },
+      getVolumeMetadataList: function(callback) {
+        callback(chrome.fileManagerPrivate.volumeMetadataList_);
+      },
+      requestFileSystem: function(volumeId, callback) {
+        callback(chrome.fileManagerPrivate.fileSystemMap_[volumeId]);
+      },
+      set driveConnectionState(state) {
+        chrome.fileManagerPrivate.driveConnectionState_ = state;
+        chrome.fileManagerPrivate.onDriveConnectionStatusChanged
+            .dispatchEvent(null);
+      }
+    }
+  };
+
+  chrome.fileManagerPrivate.mountSourcePath_ = null;
+  chrome.fileManagerPrivate.onMountCompletedListeners_ = [];
+  chrome.fileManagerPrivate.onDriveConnectionStatusChangedListeners_ = [];
+  chrome.fileManagerPrivate.driveConnectionState_ =
+      VolumeManagerCommon.DriveConnectionType.ONLINE;
+  chrome.fileManagerPrivate.volumeMetadataList_ = [
+    {
+      volumeId: 'download:Downloads',
+      volumeLabel: '',
+      volumeType: VolumeManagerCommon.VolumeType.DOWNLOADS,
+      isReadOnly: false,
+      profile: getMockProfile()
+    },
+    {
+      volumeId: 'drive:drive-foobar%40chromium.org-hash',
+      volumeLabel: '',
+      volumeType: VolumeManagerCommon.VolumeType.DRIVE,
+      isReadOnly: false,
+      profile: getMockProfile()
+    }
+  ];
+  chrome.fileManagerPrivate.fileSystemMap_ = {
+    'download:Downloads': createMockFileSystem('download:Downloads'),
+    'drive:drive-foobar%40chromium.org-hash':
+        createMockFileSystem('drive:drive-foobar%40chromium.org-hash')
+  };
+}
+
+function tearDown() {
+  VolumeManager.revokeInstanceForTesting();
+  chrome = null;
+}
+
+/**
+ * Returns a mock profile.
+ *
+ * @return {{displayName:string, isCurrentProfile:boolean, profileId:string}}
+ *     Mock profile
+ */
+function getMockProfile() {
+  return {
+    displayName: 'foobar@chromium.org',
+    isCurrentProfile: true,
+    profileId: ''
+  };
+}
+
+/**
+ * Creates a mock file system.
+ *
+ * @return {MockFileSystem} A mock file system.
+ */
+function createMockFileSystem(volumeId) {
+  var fileSystem = new MockFileSystem(volumeId, 'filesystem:' + volumeId);
+  fileSystem.entries['/'] = new MockDirectoryEntry(fileSystem, '/');
+  return fileSystem;
+}
+
+function testGetVolumeInfo(callback) {
+  reportPromise(VolumeManager.getInstance().then(function(volumeManager) {
+    var entry = new MockFileEntry(createMockFileSystem('download:Downloads'),
+        '/foo/bar/bla.zip');
+
+    var volumeInfo = volumeManager.getVolumeInfo(entry);
+    assertEquals('download:Downloads', volumeInfo.volumeId);
+    assertEquals(VolumeManagerCommon.VolumeType.DOWNLOADS,
+        volumeInfo.volumeType);
+  }), callback);
+}
+
+function testGetDriveConnectionState(callback) {
+  reportPromise(VolumeManager.getInstance().then(function(volumeManager) {
+    // Default connection state is online
+    assertEquals(VolumeManagerCommon.DriveConnectionType.ONLINE,
+        volumeManager.getDriveConnectionState());
+
+    // Sets it to offline.
+    chrome.fileManagerPrivate.driveConnectionState =
+        VolumeManagerCommon.DriveConnectionType.OFFLINE;
+    assertEquals(VolumeManagerCommon.DriveConnectionType.OFFLINE,
+        volumeManager.getDriveConnectionState());
+
+    // Sets it back to online
+    chrome.fileManagerPrivate.driveConnectionState =
+        VolumeManagerCommon.DriveConnectionType.ONLINE;
+    assertEquals(VolumeManagerCommon.DriveConnectionType.ONLINE,
+        volumeManager.getDriveConnectionState());
+  }), callback);
+}
+
+function testMountArchiveAndUnmount(callback) {
+  // Set states of mock fileManagerPrivate APIs.
+  const mountSourcePath = '/usr/local/home/test/Downloads/foobar.zip';
+  chrome.fileManagerPrivate.mountSourcePath_ = mountSourcePath;
+  chrome.fileManagerPrivate.fileSystemMap_['archive:foobar.zip'] =
+      createMockFileSystem('archive:foobar.zip');
+
+  reportPromise(VolumeManager.getInstance().then(function(volumeManager) {
+    var numberOfVolumes = volumeManager.volumeInfoList.length;
+
+    return new Promise(function(resolve, reject) {
+      // Mount an archieve
+      volumeManager.mountArchive(
+          'filesystem:chrome-extension://extensionid/external/Downloads-test/' +
+          'foobar.zip',
+          resolve, reject);
+
+      chrome.fileManagerPrivate.onMountCompleted.dispatchEvent({
+        eventType: 'mount',
+        status: 'success',
+        volumeMetadata: {
+          volumeId: 'archive:foobar.zip',
+          volumeLabel: 'foobar.zip',
+          volumeType: VolumeManagerCommon.VolumeType.ARCHIVE,
+          isReadOnly: true,
+          sourcePath: mountSourcePath,
+          profile: getMockProfile()
+        }
+      });
+    }).then(function(result) {
+      assertEquals(numberOfVolumes + 1, volumeManager.volumeInfoList.length);
+
+      return new Promise(function(resolve, reject) {
+        // Unmount the mounted archievea
+        volumeManager.volumeInfoList.addEventListener('splice', function(e) {
+          assertEquals(numberOfVolumes, volumeManager.volumeInfoList.length);
+          resolve(true);
+        });
+        var entry = new MockFileEntry(
+            createMockFileSystem('archive:foobar.zip'),
+            '/foo.txt');
+        var volumeInfo = volumeManager.getVolumeInfo(entry);
+        volumeManager.unmount(volumeInfo);
+      });
+    });
+  }), callback);
+}
+
+function testGetCurrentProfileVolumeInfo(callback) {
+  reportPromise(VolumeManager.getInstance().then(function(volumeManager) {
+    var volumeInfo = volumeManager.getCurrentProfileVolumeInfo(
+        VolumeManagerCommon.VolumeType.DRIVE);
+
+    assertEquals('drive:drive-foobar%40chromium.org-hash',
+        volumeInfo.volumeId);
+    assertEquals(VolumeManagerCommon.VolumeType.DRIVE, volumeInfo.volumeType);
+  }), callback);
+}
+
+function testGetLocationInfo(callback) {
+  reportPromise(VolumeManager.getInstance().then(function(volumeManager) {
+    var downloadEntry = new MockFileEntry(
+        createMockFileSystem('download:Downloads'),
+        '/foo/bar/bla.zip');
+    var downloadLocationInfo = volumeManager.getLocationInfo(downloadEntry);
+    assertEquals(VolumeManagerCommon.VolumeType.DOWNLOADS,
+        downloadLocationInfo.rootType)
+    assertFalse(downloadLocationInfo.isReadOnly);
+    assertFalse(downloadLocationInfo.isRootEntry);
+
+    var driveEntry = new MockFileEntry(
+        createMockFileSystem('drive:drive-foobar%40chromium.org-hash'),
+        '/root');
+    var driveLocationInfo = volumeManager.getLocationInfo(driveEntry);
+    assertEquals(VolumeManagerCommon.VolumeType.DRIVE,
+        driveLocationInfo.rootType)
+    assertFalse(driveLocationInfo.isReadOnly);
+    assertTrue(driveLocationInfo.isRootEntry);
+  }), callback);
+}