Initial test creation

gapi.auth2/gapi.auth2-tests.ts

@@ -0,0 +1,29 @@
+/// <reference path="gapi.auth2.d.ts" />
+
+function test_init(){
+  var auth = gapi.auth2.init();
+}
+
+function test_getAuthInstance(){
+  gapi.auth2.init();
+  var auth = gapi.auth2.getAuthInstance();
+}
+
+function test_render(){
+  var success = (googleUser: gapi.auth2.GoogleUser): void => {
+    console.log(googleUser);
+  };
+  var failure = (): void => {
+    console.log('Failure callback');
+  };
+
+  gapi.signin2.render('testId', {
+    scope: 'some scope',
+    width: 250,
+    height: 50,
+    longtitle: true,
+    theme: 'dark',
+    onsuccess: success,
+    onfailure: failure
+  });
+}