fix(e2e): return exit codes on failure of e2e tests

Fix #1017
Close #1025
Close #1044

Author: marc-sensenich

.travis.yml

@@ -19,7 +19,7 @@ before_install:
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then source ~/.nvm/nvm-exec; fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update; fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew tap caskroom/cask; fi
-  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew cask install google-chrome; fi
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew cask install google-chrome --force; fi
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then export DISPLAY=:99.0; fi
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sh -e /etc/init.d/xvfb start; fi
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then export CHROME_BIN=chromium-browser; fi

addon/ng2/blueprints/ng2/files/e2e/app.e2e-spec.ts

@@ -9,6 +9,6 @@ describe('<%= htmlComponentName %> App', function() {
 
   it('should display message saying app works', () => {
     page.navigateTo();
-    expect(page.getParagraphText()).toEqual('<%= htmlComponentName %> works!');
+    expect(page.getParagraphText()).toEqual('<%= prefix %> works!');
   });
 });

addon/ng2/blueprints/ng2/files/e2e/app.po.ts

@@ -4,6 +4,6 @@ export class <%= jsComponentName %>Page {
   }
 
   getParagraphText() {
-    return element(by.css('<%= htmlComponentName %>-app h1')).getText();
+    return element(by.css('<%= prefix %>-root h1')).getText();
   }
 }

addon/ng2/tasks/e2e.ts

@@ -6,17 +6,19 @@ import {exec} from 'child_process';
 module.exports = Task.extend({
   run: function () {
     var ui = this.ui;
+    var exitCode = 0;
 
     return new Promise((resolve) => {
       exec(`npm run e2e -- ${this.project.ngConfig.e2e.protractor.config}`, (err, stdout, stderr) => {
         ui.writeLine(stdout);
         if (err) {
           ui.writeLine(stderr);
           ui.writeLine(chalk.red('Some end-to-end tests failed, see above.'));
+          exitCode = err.code;
         } else {
           ui.writeLine(chalk.green('All end-to-end tests pass.'));
         }
-        resolve();
+        resolve(exitCode);
       });
     });
   }

tests/e2e/e2e_workflow.spec.js

@@ -114,6 +114,25 @@ describe('Basic end-to-end Workflow', function () {
     });
   });
 
+  it('ng e2e fails with error exit code', function () {
+    this.timeout(240000);
+
+    function executor(resolve, reject) {
+      child_process.exec(`${ngBin} e2e`, (error, stdout, stderr) => {
+        if (error !== null) {
+          resolve(stderr);
+        } else {
+          reject(stdout);
+        }
+      });
+    }
+
+    return new Promise(executor)
+      .catch((msg) => {
+        throw new Error(msg);
+      });
+  });
+
   it('Serve and run e2e tests after initial build', function () {
     this.timeout(240000);