Add tests.

types/react-native-navigation/index.d.ts

@@ -1,6 +1,7 @@
 // Type definitions for react-native-navigation 1.1
 // Project: https://github.com/wix/react-native-navigation
 // Definitions by: Egor Shulga <https://github.com/egorshulga>
+//                 Jason Merino <https://github.com/jasonmerino>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.6
 

types/react-native-navigation/react-native-navigation-tests.tsx

@@ -20,6 +20,8 @@ class Screen1 extends React.Component<Props> {
     onNavigatorEvent = (event: NavigatorEvent) => {
         if (event.id === 'willAppear') {
             console.log('will appear');
+        } else if (event.type === 'NavBarButtonPress' && event.id === 'sideMenu') {
+            console.log('side menu pressed');
         }
     }