[ReactNative] Add AppEventsTest

IntegrationTests/AppEventsTest.js

@@ -0,0 +1,62 @@
+/**
+ * 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.
+ *
+ * @providesModule AppEventsTest
+ * @flow
+ */
+'use strict';
+
+var React = require('react-native');
+var {
+  NativeAppEventEmitter,
+  NativeModules,
+  StyleSheet,
+  Text,
+  View,
+} = React;
+var TestModule = NativeModules.TestModule || NativeModules.SnapshotTestManager;
+
+var deepDiffer = require('deepDiffer');
+
+var TEST_PAYLOAD = {foo: 'bar'};
+
+var AppEventsTest = React.createClass({
+  getInitialState: function() {
+    return {sent: 'none', received: 'none'};
+  },
+  componentDidMount: function() {
+    NativeAppEventEmitter.addListener('testEvent', this.receiveEvent);
+    var event = {data: TEST_PAYLOAD, ts: Date.now()};
+    TestModule.sendAppEvent('testEvent', event);
+    this.setState({sent: event});
+  },
+  receiveEvent: function(event: any) {
+    if (deepDiffer(event.data, TEST_PAYLOAD)) {
+      throw new Error('Received wrong event: ' + JSON.stringify(event));
+    }
+    var elapsed = (Date.now() - event.ts) + 'ms';
+    this.setState({received: event, elapsed}, TestModule.markTestCompleted);
+  },
+  render: function() {
+    return (
+      <View style={styles.container}>
+        <Text>
+          {JSON.stringify(this.state, null, '  ')}
+        </Text>
+      </View>
+    );
+  }
+});
+
+var styles = StyleSheet.create({
+  container: {
+    margin: 40,
+  },
+});
+
+module.exports = AppEventsTest;

IntegrationTests/IntegrationTestsApp.js

@@ -26,6 +26,7 @@ var TESTS = [
   require('./TimersTest'),
   require('./AsyncStorageTest'),
   require('./LayoutEventsTest'),
+  require('./AppEventsTest'),
   require('./SimpleSnapshotTest'),
 ];
 

IntegrationTests/IntegrationTestsTests/IntegrationTestsTests.m

@@ -76,6 +76,11 @@ - (void)testLayoutEvents
   [_runner runTest:_cmd module:@"LayoutEventsTest"];
 }
 
+- (void)testAppEvents
+{
+  [_runner runTest:_cmd module:@"AppEventsTest"];
+}
+
 #pragma mark Snapshot Tests
 
 - (void)testSimpleSnapshot

Libraries/RCTTest/RCTTestModule.m

@@ -11,6 +11,7 @@
 
 #import "FBSnapshotTestController.h"
 #import "RCTAssert.h"
+#import "RCTEventDispatcher.h"
 #import "RCTLog.h"
 #import "RCTUIManager.h"
 
@@ -63,4 +64,9 @@ - (instancetype)init
   }];
 }
 
+RCT_EXPORT_METHOD(sendAppEvent:(NSString *)name body:(id)body)
+{
+  [_bridge.eventDispatcher sendAppEventWithName:name body:body];
+}
+
 @end