fix(tests): link package in e2e tests

Close angular#194

Author: filipesilva

tests/e2e/e2e_workflow.spec.js

@@ -21,8 +21,6 @@ describe('Basic end-to-end Workflow', function () {
     return tmp.setup('./tmp')
       .then(function () {
         process.chdir('./tmp');
-
-        sh.exec('npm i angular-cli -g -C ' + process.cwd(), { silent: true });
         expect(fs.existsSync(path.join(process.cwd(), 'bin', 'ng')));
       });
   });
@@ -41,6 +39,7 @@ describe('Basic end-to-end Workflow', function () {
 
   it('Can change current working directory to `test-project`', function() {
     process.chdir(path.join(root, 'test-project'));
+    sh.exec('$(npm bin -g)/npm link ../../angular-cli');
     expect(path.basename(process.cwd())).to.equal('test-project');
   });