feat: use headless chromium and circle ci for integration tests

.circleci/config.yml

@@ -0,0 +1,30 @@
+version: 2
+jobs:
+  build:
+    docker:
+      - image: circleci/node:8.6.0-browsers
+
+    steps:
+      - checkout
+
+      - run: npm install
+
+      - run:
+          name: Download Selenium
+          command: sudo npm install selenium-standalone@latest -g
+      - run:
+          name: Start Selenium
+          command: selenium-standalone install && selenium-standalone start
+          background: true
+
+      - run:
+          name: Unit tests
+          command: npm test
+
+      - run:
+          name: Functional tests
+          command: npm run test-func
+
+      - store_artifacts:
+          path: hermione-report/
+          destination: /hermione-report

.hermione.conf.js

@@ -9,21 +9,8 @@ global.assert = chai.assert;
 const serverPort = 8080;
 const fixturesPath = 'test/func/fixtures/report';
 
-const getGridUrl = () => {
-    const {SAUCE_USERNAME, SAUCE_ACCESS_KEY} = process.env;
-
-    if (SAUCE_USERNAME && SAUCE_ACCESS_KEY) {
-        return `http://${SAUCE_USERNAME}:${SAUCE_ACCESS_KEY}@ondemand.saucelabs.com/wd/hub`;
-    }
-
-    console.warn('No "SAUCE_USERNAME" and "SAUCE_ACCESS_KEY" env was found. Local grid will be used.');
-
-    return 'http://localhost:4444/wd/hub';
-};
-
 module.exports = {
     baseUrl: `http://localhost:${serverPort}/${fixturesPath}/index.html`,
-    gridUrl: getGridUrl(),
 
     screenshotsDir: 'test/func/main/screens',
 
@@ -38,7 +25,10 @@ module.exports = {
             windowSize: '1280x1024',
             desiredCapabilities: {
                 browserName: 'chrome',
-                'tunnel-identifier': process.env.TRAVIS_JOB_NUMBER
+                'tunnel-identifier': process.env.TRAVIS_JOB_NUMBER,
+                chromeOptions: {
+                    mobileEmulation: {deviceMetrics: {pixelRatio: 1}}
+                }
             }
         }
     },
@@ -52,6 +42,10 @@ module.exports = {
             enabled: true,
             path: 'hermione-report',
             scaleImages: true
+        },
+        'hermione-headless-chrome': {
+            browserId: 'chrome',
+            version: '77'
         }
     }
 };

README.md

@@ -146,7 +146,7 @@ Run [hermione](https://github.com/gemini-testing/hermione) (integration) tests:
 npm run test-func
 ```
 
-Before run integration tests on local machine you should run [sauce-connect](https://wiki.saucelabs.com/display/DOCS/Basic+Sauce+Connect+Proxy+Setup)
+Integration tests run on Chromium in headless mode.
 
 ## Api