Fix code coverage reporting

Author: eriwen

.github/workflows/ci.yml

@@ -36,3 +36,13 @@ jobs:
       - name: Run browser tests in Saucelabs
         run: npm run test-ci
         timeout-minutes: 5
+      - name: Install lcov
+        run: |
+          sudo apt update
+          sudo apt install lcov
+      - name: Merge lcov reports
+        run: find coverage -name lcov.info -exec echo -a \"{}\" \; | xargs lcov -o coverage/lcov.info
+      - name: Coveralls
+        uses: coverallsapp/github-action@master
+        with:
+          github-token: ${{ secrets.github_token }}

CONTRIBUTING.md

@@ -101,7 +101,10 @@ module.exports = function(config) {
         },
         coverageReporter: {
             type: 'lcov',
-            dir: 'coverage'
+            dir: 'coverage',
+            subdir: function(browser) {
+                return browser.toLowerCase().split(/[ /-]/)[0];
+            }
         },
         singleRun: true
     });

karma.conf.ci.js

@@ -9,18 +9,28 @@ module.exports = function (config) {
             'spec/*-spec.js',
             { pattern: 'spec/fixtures/**', included: false }
         ],
-        reporters: ['spec'],
         port: 9876,
         colors: true,
         logLevel: config.LOG_INFO,
         autoWatch: true,
         customLaunchers: {
-            Chrome_Travis: {
+            Chrome_No_Sandbox: {
                 base: 'Chrome',
                 flags: ['--no-sandbox']
             }
         },
         browsers: ['PhantomJS'],
+        reporters: ['spec', 'saucelabs', 'coverage', 'coveralls'],
+        preprocessors: {
+            'stack-generator.js': 'coverage'
+        },
+        coverageReporter: {
+            type: 'lcov',
+            dir: 'coverage',
+            subdir: function(browser) {
+                return browser.toLowerCase().split(/[ /-]/)[0];
+            }
+        },
         singleRun: false
     });
 };