Add Share module

Summary:
revision of https://github.com/facebook/react-native/pull/5476

It has only one method `shareTextContent` and next will be`shareBinaryContent`.

In Android, Promise can't receive a result, because `startActivityForResult` is not working with `Intent.ACTION_SEND`. Maybe we can use `createChooser(Intent target, CharSequence title, IntentSender sender)` which requires API level 22.
Closes https://github.com/facebook/react-native/pull/5904

Differential Revision: D3612889

fbshipit-source-id: 0e7aaf34b076a99089cc76bd649e6da067d9a760

Examples/UIExplorer/js/ShareExample.js

@@ -0,0 +1,124 @@
+/**
+ * The examples provided by Facebook are for non-commercial testing and
+ * evaluation purposes only.
+ *
+ * Facebook reserves all rights not expressly granted.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL
+ * FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * @flow
+ */
+'use strict';
+
+var React = require('react');
+var ReactNative = require('react-native');
+var {
+  StyleSheet,
+  View,
+  Text,
+  TouchableHighlight,
+  Share,
+} = ReactNative;
+
+exports.framework = 'React';
+exports.title = 'Share';
+exports.description = 'Share data with other Apps.';
+exports.examples = [{
+  title: 'Share Text Content',
+  render() {
+    return <ShareMessageExample />;
+  }
+}];
+
+class ShareMessageExample extends React.Component {
+  _shareMessage: Function;
+  _shareText: Function;
+  _showResult: Function;
+  state: any;
+
+  constructor(props) {
+    super(props);
+
+    this._shareMessage = this._shareMessage.bind(this);
+    this._shareText = this._shareText.bind(this);
+    this._showResult = this._showResult.bind(this);
+
+    this.state = {
+      result: ''
+    };
+  }
+
+  render() {
+    return (
+      <View>
+        <TouchableHighlight style={styles.wrapper}
+          onPress={this._shareMessage}>
+          <View style={styles.button}>
+            <Text>Click to share message</Text>
+          </View>
+        </TouchableHighlight>
+        <TouchableHighlight style={styles.wrapper}
+          onPress={this._shareText}>
+          <View style={styles.button}>
+            <Text>Click to share message, URL and title</Text>
+          </View>
+        </TouchableHighlight>
+        <Text>{this.state.result}</Text>
+      </View>
+    );
+  }
+
+  _shareMessage() {
+    Share.share({
+      message: 'React Native | A framework for building native apps using React'
+    })
+    .then(this._showResult)
+    .catch((error) => this.setState({result: 'error: ' + error.message}));
+  }
+
+  _shareText() {
+    Share.share({
+      message: 'A framework for building native apps using React',
+      url: 'http://facebook.github.io/react-native/',
+      title: 'React Native'
+    }, {
+      dialogTitle: 'Share React Native website',
+      excludedActivityTypes: [
+        'com.apple.UIKit.activity.PostToTwitter'
+      ],
+      tintColor: 'green'
+    })
+    .then(this._showResult)
+    .catch((error) => this.setState({result: 'error: ' + error.message}));
+  }
+
+  _showResult(result) {
+    if (result.action === Share.sharedAction) {
+      if (result.activityType) {
+        this.setState({result: 'shared with an activityType: ' + result.activityType});
+      } else {
+        this.setState({result: 'shared'});
+      }
+    } else if (result.action === Share.dismissedAction) {
+      this.setState({result: 'dismissed'});
+    }
+  }
+
+}
+
+
+var styles = StyleSheet.create({
+  wrapper: {
+    borderRadius: 5,
+    marginBottom: 5,
+  },
+  button: {
+    backgroundColor: '#eeeeee',
+    padding: 10,
+  },
+});

Examples/UIExplorer/js/UIExplorerList.android.js

@@ -181,6 +181,10 @@ const APIExamples = [
     key: 'PointerEventsExample',
     module: require('./PointerEventsExample'),
   },
+  {
+    key: 'ShareExample',
+    module: require('./ShareExample'),
+  },
   {
     key: 'TimePickerAndroidExample',
     module: require('./TimePickerAndroidExample'),

Examples/UIExplorer/js/UIExplorerList.ios.js

@@ -247,6 +247,10 @@ const APIExamples: Array<UIExplorerExample> = [
     key: 'RCTRootViewIOSExample',
     module: require('./RCTRootViewIOSExample'),
   },
+  {
+    key: 'ShareExample',
+    module: require('./ShareExample'),
+  },
   {
     key: 'SnapshotExample',
     module: require('./SnapshotExample'),

Libraries/Share/Share.js

@@ -0,0 +1,116 @@
+/**
+ * Copyright (c) 2016-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule Share
+ * @flow
+ */
+'use strict';
+
+const Platform = require('Platform');
+const {
+  ActionSheetManager,
+  ShareModule
+} = require('NativeModules');
+const invariant = require('fbjs/lib/invariant');
+const processColor = require('processColor');
+
+type Content = { title?: string, message: string } | { title?: string, url: string };
+type Options = { dialogTitle?: string, excludeActivityTypes?: Array<string>, tintColor?: string };
+
+class Share {
+
+  /**
+   * Open a dialog to share text content.
+   *
+   * In iOS, Returns a Promise which will be invoked an object containing `action`, `activityType`.
+   * If the user dismissed the dialog, the Promise will still be resolved with action being `Share.dismissedAction`
+   * and all the other keys being undefined.
+   *
+   * In Android, Returns a Promise which always be resolved with action being `Share.sharedAction`.
+   *
+   * ### Content
+   *
+   *  - `message` - a message to share
+   *  - `title` - title of the message
+   *
+   * #### iOS
+   *
+   *  - `url` - an URL to share
+   *
+   * At least one of URL and message is required.
+   *
+   * ### Options
+   *
+   * #### iOS
+   *
+   * - `excludedActivityTypes`
+   * - `tintColor`
+   *
+   * #### Android
+   *
+   * - `dialogTitle`
+   *
+   */
+  static share(content: Content, options: Options = {}): Promise<Object> {
+    invariant(
+      typeof content === 'object' && content !== null,
+      'Content must a valid object'
+    );
+    invariant(
+      typeof content.url === 'string' || typeof content.message === 'string',
+      'At least one of URL and message is required'
+    );
+    invariant(
+      typeof options === 'object' && options !== null,
+      'Options must be a valid object'
+    );
+
+    if (Platform.OS === 'android') {
+      invariant(
+        !content.title || typeof content.title === 'string',
+        'Invalid title: title should be a string.'
+      );
+      return ShareModule.share(content, options.dialogTitle);
+    } else if (Platform.OS === 'ios') {
+      return new Promise((resolve, reject) => {
+        ActionSheetManager.showShareActionSheetWithOptions(
+          {...content, ...options, tintColor: processColor(options.tintColor)},
+          (error) => reject(error),
+          (success, activityType) => {
+            if (success) {
+              resolve({
+                'action': 'sharedAction',
+                'activityType': activityType
+              });
+            } else {
+              resolve({
+                'action': 'dismissedAction'
+              });
+            }
+          }
+        );
+      });
+    } else {
+      return Promise.reject(new Error('Unsupported platform'));
+    }
+  }
+
+  /**
+   * The content was successfully shared.
+   */
+  static get sharedAction() { return 'sharedAction'; }
+
+  /**
+   * The dialog has been dismissed.
+   * @platform ios
+   */
+  static get dismissedAction() { return 'dismissedAction'; }
+
+}
+
+module.exports = Share;

Libraries/react-native/react-native.js

@@ -101,6 +101,7 @@ const ReactNative = {
   get PixelRatio() { return require('PixelRatio'); },
   get PushNotificationIOS() { return require('PushNotificationIOS'); },
   get Settings() { return require('Settings'); },
+  get Share() { return require('Share'); },
   get StatusBarIOS() { return require('StatusBarIOS'); },
   get StyleSheet() { return require('StyleSheet'); },
   get Systrace() { return require('Systrace'); },

Libraries/react-native/react-native.js.flow

@@ -113,6 +113,7 @@ var ReactNative = {
   PixelRatio: require('PixelRatio'),
   PushNotificationIOS: require('PushNotificationIOS'),
   Settings: require('Settings'),
+  Share: require('Share'),
   StatusBarIOS: require('StatusBarIOS'),
   StyleSheet: require('StyleSheet'),
   Systrace: require('Systrace'),

ReactAndroid/src/androidTest/java/com/facebook/react/tests/BUCK

@@ -14,6 +14,7 @@ deps = [
   react_native_target('java/com/facebook/react/common:common'),
   react_native_target('java/com/facebook/react/modules/core:core'),
   react_native_target('java/com/facebook/react/modules/datepicker:datepicker'),
+  react_native_target('java/com/facebook/react/modules/share:share'),
   react_native_target('java/com/facebook/react/modules/systeminfo:systeminfo'),
   react_native_target('java/com/facebook/react/modules/timepicker:timepicker'),
   react_native_target('java/com/facebook/react/touch:touch'),

ReactAndroid/src/androidTest/java/com/facebook/react/tests/ShareTestCase.java

@@ -0,0 +1,109 @@
+/**
+ * Copyright (c) 2014-present, Facebook, Inc.
+ * All rights reserved.
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+package com.facebook.react.tests;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Instrumentation.ActivityMonitor;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.IntentFilter.MalformedMimeTypeException;
+import android.support.v4.app.DialogFragment;
+
+import com.facebook.react.bridge.BaseJavaModule;
+import com.facebook.react.testing.ReactInstanceSpecForTest;
+import com.facebook.react.bridge.ReactMethod;
+import com.facebook.react.bridge.JavaScriptModule;
+import com.facebook.react.bridge.WritableMap;
+import com.facebook.react.bridge.WritableNativeMap;
+import com.facebook.react.modules.share.ShareModule;
+import com.facebook.react.testing.ReactAppInstrumentationTestCase;
+
+/**
+ * Test case for {@link ShareModule}.
+ */
+public class ShareTestCase extends ReactAppInstrumentationTestCase {
+
+  private static interface ShareTestModule extends JavaScriptModule {
+    public void showShareDialog(WritableMap content, WritableMap options);
+  }
+
+  private static class ShareRecordingModule extends BaseJavaModule {
+
+    private int mOpened = 0;
+    private int mErrors = 0;
+
+    @Override
+    public String getName() {
+      return "ShareRecordingModule";
+    }
+
+    @ReactMethod
+    public void recordOpened() {
+      mOpened++;
+    }
+
+    @ReactMethod
+    public void recordError() {
+      mErrors++;
+    }
+
+    public int getOpened() {
+      return mOpened;
+    }
+
+    public int getErrors() {
+      return mErrors;
+    }
+
+  }
+
+  final ShareRecordingModule mRecordingModule = new ShareRecordingModule();
+
+  @Override
+  protected ReactInstanceSpecForTest createReactInstanceSpecForTest() {
+    return super.createReactInstanceSpecForTest()
+        .addNativeModule(mRecordingModule)
+        .addJSModule(ShareTestModule.class);
+  }
+
+  @Override
+  protected String getReactApplicationKeyUnderTest() {
+    return "ShareTestApp";
+  }
+
+  private ShareTestModule getTestModule() {
+    return getReactContext().getCatalystInstance().getJSModule(ShareTestModule.class);
+  }
+
+  public void testShowBasicShareDialog() {
+    final WritableMap content = new WritableNativeMap();
+    content.putString("message", "Hello, ReactNative!");
+    final WritableMap options = new WritableNativeMap();
+
+    IntentFilter intentFilter = new IntentFilter(Intent.ACTION_CHOOSER);
+    intentFilter.addCategory(Intent.CATEGORY_DEFAULT);
+    ActivityMonitor monitor = getInstrumentation().addMonitor(intentFilter, null, true);
+
+    getTestModule().showShareDialog(content, options);
+
+    waitForBridgeAndUIIdle();
+    getInstrumentation().waitForIdleSync();
+
+    assertEquals(1, monitor.getHits());
+    assertEquals(1, mRecordingModule.getOpened());
+    assertEquals(0, mRecordingModule.getErrors());
+
+  }
+
+}

ReactAndroid/src/androidTest/js/ShareTestModule.js

@@ -0,0 +1,41 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule ShareTestModule
+ */
+
+'use strict';
+
+var BatchedBridge = require('BatchedBridge');
+var React = require('React');
+var RecordingModule = require('NativeModules').ShareRecordingModule;
+var Share = require('Share');
+var View = require('View');
+
+var ShareTestApp = React.createClass({
+  render: function() {
+    return (<View />);
+  },
+});
+
+var ShareTestModule = {
+  ShareTestApp: ShareTestApp,
+  showShareDialog: function(content, options) {
+    Share.share(content, options).then(
+      () => RecordingModule.recordOpened(),
+      ({code, message}) => RecordingModule.recordError()
+    );
+  },
+};
+
+BatchedBridge.registerCallableModule(
+  'ShareTestModule',
+  ShareTestModule
+);
+
+module.exports = ShareTestModule;

ReactAndroid/src/androidTest/js/TestBundle.js

@@ -25,6 +25,7 @@ require('DatePickerDialogTestModule');
 require('MeasureLayoutTestModule');
 require('PickerAndroidTestModule');
 require('ScrollViewTestModule');
+require('ShareTestModule');
 require('SwipeRefreshLayoutTestModule');
 require('TextInputTestModule');
 require('TimePickerDialogTestModule');
@@ -74,6 +75,10 @@ var apps = [
   appKey: 'ScrollViewTestApp',
   component: () => require('ScrollViewTestModule').ScrollViewTestApp,
 },
+{
+  appKey: 'ShareTestApp',
+  component: () => require('ShareTestModule').ShareTestApp,
+},
 {
   appKey: 'SubviewsClippingTestApp',
   component: () => require('SubviewsClippingTestModule').App,

ReactAndroid/src/main/java/com/facebook/react/modules/share/BUCK

@@ -0,0 +1,20 @@
+include_defs('//ReactAndroid/DEFS')
+
+android_library(
+  name = 'share',
+  srcs = glob(['**/*.java']),
+  deps = [
+    react_native_target('java/com/facebook/react/bridge:bridge'),
+    react_native_target('java/com/facebook/react/common:common'),
+    react_native_dep('libraries/fbcore/src/main/java/com/facebook/common/logging:logging'),
+    react_native_dep('third-party/java/infer-annotations:infer-annotations'),
+    react_native_dep('third-party/java/jsr-305:jsr-305'),
+  ],
+  visibility = [
+    'PUBLIC',
+  ],
+)
+
+project_config(
+  src_target = ':share',
+)

ReactAndroid/src/main/java/com/facebook/react/modules/share/ShareModule.java

@@ -0,0 +1,90 @@
+/**
+ * Copyright (c) 2016-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+package com.facebook.react.modules.share;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.net.Uri;
+
+import com.facebook.react.bridge.Arguments;
+import com.facebook.react.bridge.JSApplicationIllegalArgumentException;
+import com.facebook.react.bridge.Promise;
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.bridge.ReactContextBaseJavaModule;
+import com.facebook.react.bridge.ReactMethod;
+import com.facebook.react.bridge.ReadableMap;
+import com.facebook.react.bridge.WritableMap;
+import com.facebook.react.common.ReactConstants;
+
+/**
+ * Intent module. Launch other activities or open URLs.
+ */
+public class ShareModule extends ReactContextBaseJavaModule {
+
+  /* package */ static final String ACTION_SHARED = "sharedAction";
+  /* package */ static final String ERROR_INVALID_CONTENT = "E_INVALID_CONTENT";
+  /* package */ static final String ERROR_UNABLE_TO_OPEN_DIALOG = "E_UNABLE_TO_OPEN_DIALOG";
+
+  public ShareModule(ReactApplicationContext reactContext) {
+    super(reactContext);
+  }
+
+  @Override
+  public String getName() {
+    return "ShareModule";
+  }
+
+  /**
+   * Open a chooser dialog to send text content to other apps.
+   *
+   * Refer http://developer.android.com/intl/ko/training/sharing/send.html
+   *
+   * @param content the data to send
+   * @param dialogTitle the title of the chooser dialog
+   */
+  @ReactMethod
+  public void share(ReadableMap content, String dialogTitle, Promise promise) {
+    if (content == null) {
+      promise.reject(ERROR_INVALID_CONTENT, "Content cannot be null");
+      return;
+    }
+
+    try {
+      Intent intent = new Intent(Intent.ACTION_SEND);
+      intent.setTypeAndNormalize("text/plain");
+
+      if (content.hasKey("title")) {
+        intent.putExtra(Intent.EXTRA_SUBJECT, content.getString("title"));
+      }
+
+      if (content.hasKey("message")) {
+        intent.putExtra(Intent.EXTRA_TEXT, content.getString("message"));
+      }
+
+      Intent chooser = Intent.createChooser(intent, dialogTitle);
+      chooser.addCategory(Intent.CATEGORY_DEFAULT);
+
+      Activity currentActivity = getCurrentActivity();
+      if (currentActivity != null) {
+        currentActivity.startActivity(chooser);
+      } else {
+        getReactApplicationContext().startActivity(chooser);
+      }
+      WritableMap result = Arguments.createMap();
+      result.putString("action", ACTION_SHARED);
+      promise.resolve(result);
+
+    } catch (Exception e) {
+      promise.reject(ERROR_UNABLE_TO_OPEN_DIALOG, "Failed to open share dialog");
+    }
+
+  }
+
+}

ReactAndroid/src/main/java/com/facebook/react/shell/BUCK

@@ -27,6 +27,7 @@ android_library(
     react_native_target('java/com/facebook/react/modules/netinfo:netinfo'),
     react_native_target('java/com/facebook/react/modules/network:network'),
     react_native_target('java/com/facebook/react/modules/permissions:permissions'),
+    react_native_target('java/com/facebook/react/modules/share:share'),
     react_native_target('java/com/facebook/react/modules/statusbar:statusbar'),
     react_native_target('java/com/facebook/react/modules/storage:storage'),
     react_native_target('java/com/facebook/react/modules/timepicker:timepicker'),

ReactAndroid/src/main/java/com/facebook/react/shell/MainReactPackage.java

@@ -33,6 +33,7 @@ import com.facebook.react.modules.location.LocationModule;
 import com.facebook.react.modules.netinfo.NetInfoModule;
 import com.facebook.react.modules.network.NetworkingModule;
 import com.facebook.react.modules.permissions.PermissionsModule;
+import com.facebook.react.modules.share.ShareModule;
 import com.facebook.react.modules.statusbar.StatusBarModule;
 import com.facebook.react.modules.storage.AsyncStorageModule;
 import com.facebook.react.modules.timepicker.TimePickerDialogModule;
@@ -89,6 +90,7 @@ public class MainReactPackage implements ReactPackage {
       new NetworkingModule(reactContext),
       new NetInfoModule(reactContext),
       new PermissionsModule(reactContext),
+      new ShareModule(reactContext),
       new StatusBarModule(reactContext),
       new TimePickerDialogModule(reactContext),
       new ToastModule(reactContext),

ReactAndroid/src/test/java/com/facebook/react/modules/BUCK

@@ -9,6 +9,7 @@ robolectric3_test(
     CSSLAYOUT_TARGET,
     react_native_dep('libraries/fbcore/src/test/java/com/facebook/powermock:powermock'),
     react_native_dep('third-party/java/fest:fest'),
+    react_native_dep('third-party/java/jsr-305:jsr-305'),
     react_native_dep('third-party/java/junit:junit'),
     react_native_dep('third-party/java/mockito:mockito'),
     react_native_dep('third-party/java/okhttp:okhttp3'),
@@ -24,6 +25,7 @@ robolectric3_test(
     react_native_target('java/com/facebook/react/modules/debug:debug'),
     react_native_target('java/com/facebook/react/modules/dialog:dialog'),
     react_native_target('java/com/facebook/react/modules/network:network'),
+    react_native_target('java/com/facebook/react/modules/share:share'),
     react_native_target('java/com/facebook/react/modules/storage:storage'),
     react_native_target('java/com/facebook/react/modules/systeminfo:systeminfo'),
     react_native_target('java/com/facebook/react/touch:touch'),

ReactAndroid/src/test/java/com/facebook/react/modules/share/ShareModuleTest.java

@@ -0,0 +1,179 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+package com.facebook.react.modules.share;
+
+import android.app.Activity;
+import android.content.Intent;
+
+import com.facebook.react.bridge.Arguments;
+import com.facebook.react.bridge.Promise;
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.bridge.ReactTestHelper;
+import com.facebook.react.bridge.JavaOnlyMap;
+
+import javax.annotation.Nullable;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.Rule;
+import org.junit.runner.RunWith;
+import org.mockito.Mockito;
+import org.mockito.invocation.InvocationOnMock;
+import org.mockito.stubbing.Answer;
+import org.powermock.api.mockito.PowerMockito;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.core.classloader.annotations.PowerMockIgnore;
+import org.powermock.modules.junit4.rule.PowerMockRule;
+import org.robolectric.internal.ShadowExtractor;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.shadows.ShadowApplication;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+@PrepareForTest({Arguments.class})
+@RunWith(RobolectricTestRunner.class)
+@PowerMockIgnore({"org.mockito.*", "org.robolectric.*", "android.*"})
+public class ShareModuleTest {
+
+  private Activity mActivity;
+  private ShareModule mShareModule;
+
+  @Rule
+  public PowerMockRule rule = new PowerMockRule();
+
+  @Before
+  public void prepareModules() throws Exception {
+    PowerMockito.mockStatic(Arguments.class);
+    Mockito.when(Arguments.createMap()).thenAnswer(new Answer<Object>() {
+      @Override
+      public Object answer(InvocationOnMock invocation) throws Throwable {
+        return new JavaOnlyMap();
+      }
+    });
+
+    mShareModule = new ShareModule(ReactTestHelper.createCatalystContextForTest());
+  }
+
+  @After
+  public void cleanUp() {
+    mActivity = null;
+    mShareModule = null;
+  }
+
+  @Test
+  public void testShareDialog() {
+    final String title = "Title";
+    final String message = "Message";
+    final String dialogTitle = "Dialog Title";
+
+    JavaOnlyMap content = new JavaOnlyMap();
+    content.putString("title", title);
+    content.putString("message", message);
+
+    final SimplePromise promise = new SimplePromise();
+
+    mShareModule.share(content, dialogTitle, promise);
+
+    final Intent chooserIntent = 
+      ((ShadowApplication)ShadowExtractor.extract(RuntimeEnvironment.application)).getNextStartedActivity();
+    assertNotNull("Dialog was not displayed", chooserIntent);
+    assertEquals(Intent.ACTION_CHOOSER, chooserIntent.getAction());
+    assertEquals(dialogTitle, chooserIntent.getExtras().get(Intent.EXTRA_TITLE));
+
+    final Intent contentIntent = (Intent)chooserIntent.getExtras().get(Intent.EXTRA_INTENT);
+    assertNotNull("Intent was not built correctly", contentIntent);
+    assertEquals(Intent.ACTION_SEND, contentIntent.getAction());
+    assertEquals(title, contentIntent.getExtras().get(Intent.EXTRA_SUBJECT));
+    assertEquals(message, contentIntent.getExtras().get(Intent.EXTRA_TEXT));
+
+    assertEquals(1, promise.getResolved());
+  }
+
+  @Test
+  public void testInvalidContent() {
+    final String dialogTitle = "Dialog Title";
+
+    final SimplePromise promise = new SimplePromise();
+
+    mShareModule.share(null, dialogTitle, promise);
+
+    assertEquals(1, promise.getRejected());
+    assertEquals(ShareModule.ERROR_INVALID_CONTENT, promise.getErrorCode());
+  }
+
+  final static class SimplePromise implements Promise {
+    private static final String DEFAULT_ERROR = "EUNSPECIFIED";
+
+    private int mResolved;
+    private int mRejected;
+    private Object mValue;
+    private String mErrorCode;
+    private String mErrorMessage;
+
+    public int getResolved() {
+      return mResolved;
+    }
+
+    public int getRejected() {
+      return mRejected;
+    }
+    
+    public Object getValue() {
+      return mValue;
+    }
+
+    public String getErrorCode() {
+      return mErrorCode;
+    }
+
+    public String getErrorMessage() {
+      return mErrorMessage;
+    }
+
+    @Override
+    public void resolve(Object value) {
+      mResolved++;
+      mValue = value;
+    }
+
+    @Override
+    public void reject(String code, String message) {
+      reject(code, message, /*Throwable*/null);
+    }
+
+    @Override
+    @Deprecated
+    public void reject(String message) {
+      reject(DEFAULT_ERROR, message, /*Throwable*/null);
+    }
+
+    @Override
+    public void reject(String code, Throwable e) {
+      reject(code, e.getMessage(), e);
+    }
+
+    @Override
+    public void reject(Throwable e) {
+      reject(DEFAULT_ERROR, e.getMessage(), e);
+    }
+
+    @Override
+    public void reject(String code, String message, @Nullable Throwable e) {
+      mRejected++;
+      mErrorCode = code;
+      mErrorMessage = message;
+    }
+  }
+
+}