feature: export DefaultTransport (googleapis#162)

Properly export DefaultTransport - some dependent libraries are using this via loading an internal file.

Author: ofrobots

ts/lib/auth/googleauth.ts

@@ -92,6 +92,11 @@ export class GoogleAuth {
  */
  public UserRefreshClient = UserRefreshClient;
 
+ /**
+ * Export DefaultTransporter as a static property of the class.
+ */
+ public static DefaultTransporter = DefaultTransporter;
+
  /**
  * Obtains the default project ID for the application..
  * @param {function=} callback Optional callback.

ts/test/test.index.ts

@@ -16,11 +16,17 @@
 import * as assert from 'assert';
 
 import {GoogleAuth} from '../lib/auth/googleauth';
+import {DefaultTransporter} from '../lib/transporters';
 
 describe('module', () => {
  it('should export GoogleAuth as a function', () => {
  const cjs = require('../');
  assert.strictEqual(typeof cjs, 'function');
  assert.strictEqual(cjs, GoogleAuth);
  });
+
+ it('should publicly export DefaultTransporter', () => {
+ const cjs = require('../');
+ assert.strictEqual(cjs.DefaultTransporter, DefaultTransporter);
+ });
 });