chore: move CI builds from travis-ci.org to GitHub actions (#71)

.github/workflows/unit-tests.yml

@@ -0,0 +1,78 @@
+name: Unit Tests
+
+# all pull requests
+on: pull_request
+
+jobs:
+  unit-tests-p2:
+    name: Polymer 2 on the CI agent
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Node 12.x
+        uses: actions/setup-node@v2
+        with:
+          node-version: 12.x
+
+      - name: Check out the source code
+        uses: actions/checkout@v2
+
+      - name: Install global npm dependencies
+        # bower is needed to run 'bower install'
+        # polymer-cli is needed to run the lint step
+        # web-component-tester is needed to run the test step
+        run: "npm install --quiet --no-progress --global bower polymer-cli web-component-tester"
+
+      - name: Install project npm dependencies
+        run: "npm install --quiet --no-progress"
+
+      - name: Install project Bower dependencies
+        run: "bower install --quiet"
+
+      - name: Run automated magi-cli checks
+        run: "npm run check"
+
+      - name: Run a linter
+        run: "npm run lint"
+
+      # the full set of environments is tested with Polymer 3 below
+      - name: Run unit tests locally (in the VM instance running this job)
+        run: "xvfb-run -s '-screen 0 1024x768x24' wct"
+
+  unit-tests-p3:
+    name: Polymer 3 on SauceLabs
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Node 12.x
+        uses: actions/setup-node@v2
+        with:
+          node-version: 12.x
+
+      - name: Check out the (Polymer 2) source code
+        uses: actions/checkout@v2
+
+      - name: Install global npm dependencies
+        # magi-cli, bower and polymer-modulizer are needed to run the Polymer 3 conversion step
+        # web-component-tester is needed to run the test step
+        run: "npm install --quiet --no-progress --global bower magi-cli web-component-tester polymer-modulizer"
+
+      - name: Convert the source code to Polymer 3
+        run: |
+          git config --local user.email "github-actions[bot]@users.noreply.github.com"
+          git config --local user.name "github-actions[bot]"
+          magi p3-convert --out . --import-style=name
+
+      # Using yarn instead of npm here to check that the dependency tree does not have two
+      # versions of the same component. With P2 / Bower that is checked automatically, but
+      # with P3 / npm it is not.
+      - name: Install project npm dependencies
+        run: "yarn install --flat"
+
+      # workaround for running tests on Android on SauceLabs (see wct.conf.js)
+      - name: Add 'localhost-for-saucelabs' to /etc/hosts
+        run: echo "127.0.0.1 localhost-for-saucelabs" | sudo tee -a /etc/hosts
+
+      - name: Run unit tests on SauceLabs
+        run: "wct --npm --env saucelabs"
+        env:
+          SAUCE_USERNAME: ${{ secrets.SAUCE_USERNAME }}
+          SAUCE_ACCESS_KEY: ${{ secrets.SAUCE_ACCESS_KEY }}

.github/workflows/visual-tests.yml

@@ -0,0 +1,41 @@
+name: Visual Tests
+
+# all pull requests
+on: pull_request
+
+jobs:
+  visual-tests:
+    name: Polymer 2 on SauceLabs
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Node 12.x
+        uses: actions/setup-node@v2
+        with:
+          node-version: 12.x
+
+      - name: Check out the source code
+        uses: actions/checkout@v2
+
+      - name: Install global npm dependencies
+        # bower is needed to run 'bower install'
+        # gemini is needed to run the visual tests step
+        run: "npm install --quiet --no-progress --global bower gemini@^4.0.0 gemini-sauce gemini-polyserve"
+
+      - name: Install project npm dependencies
+        run: "npm install --quiet --no-progress"
+
+      - name: Install project Bower dependencies
+        run: "bower install --quiet"
+
+      - name: Run visual tests on SauceLabs
+        run: "gemini test --reporter html --reporter flat test/visual"
+        env:
+          SAUCE_USERNAME: ${{ secrets.SAUCE_USERNAME }}
+          SAUCE_ACCESS_KEY: ${{ secrets.SAUCE_ACCESS_KEY }}
+
+      - name: Publish the Visual Tests failures report as an Artifact for this Workflow run
+        if: ${{ failure() }}
+        uses: actions/upload-artifact@v2
+        with:
+          name: Visual tests failures report
+          path: gemini-report/

wct.conf.js

@@ -1,6 +1,11 @@
 var envIndex = process.argv.indexOf('--env') + 1;
 var env = envIndex ? process.argv[envIndex] : undefined;
 
+// workaround for Android 7+ blocking all HTTP traffic
+// see https://wiki.saucelabs.com/display/DOCS/Known+Issues
+// add it to your own local `/etc/hosts` to run SauceLabs tests locally
+var tunneledLocalhost = 'localhost-for-saucelabs';
+
 module.exports = {
   testTimeout: 180 * 1000,
   verbose: false,
@@ -17,37 +22,31 @@ module.exports = {
   },
 
   registerHooks: function(context) {
-    const saucelabsPlatformsMobile = [
-      'iOS Simulator/[email protected]',
-      'iOS Simulator/[email protected]'
-    ];
-
-    const saucelabsPlatformsMicrosoft = [
+    const testBrowsers = [
+      {
+        deviceName: 'Android GoogleAPI Emulator',
+        platformName: 'Android',
+        platformVersion: '11.0',
+        browserName: 'Chrome',
+      },
+      'iOS Simulator/[email protected]', // should be 9.x, but SauceLabs does not provide that
+      'macOS 11/safari@latest',
+      'Windows 10/microsoftedge@latest',
       'Windows 10/microsoftedge@18',
-      'Windows 10/internet explorer@11'
-    ];
-
-    const saucelabsPlatformsDesktop = [
-      'macOS 10.13/safari@latest'
-    ];
-
-    const saucelabsPlatforms = [
-      ...saucelabsPlatformsMobile,
-      ...saucelabsPlatformsMicrosoft,
-      ...saucelabsPlatformsDesktop
-    ];
-
-    const cronPlatforms = [
-      'iOS Simulator/[email protected]',
-      'iOS Simulator/[email protected]',
+      'Windows 10/internet explorer@11',
       'Windows 10/chrome@latest',
-      'Windows 10/firefox@latest'
+      'Windows 10/firefox@latest',
+      'Windows 10/firefox@78', // latest ESR as of 2021-06-30
     ];
 
     if (env === 'saucelabs') {
-      context.options.plugins.sauce.browsers = saucelabsPlatforms;
-    } else if (env === 'saucelabs-cron') {
-      context.options.plugins.sauce.browsers = cronPlatforms;
+      context.options.webserver = context.options.webserver || {};
+      context.options.webserver.hostname = tunneledLocalhost;
+      context.options.plugins.sauce.tunnelOptions = {
+        tunnelDomains: tunneledLocalhost
+      };
+
+      context.options.plugins.sauce.browsers = testBrowsers;
     }
   }
 };