Add code coverage to browser tests

Author: vweevers

.github/workflows/sauce.yml

@@ -23,3 +23,9 @@ jobs:
         env:
           SAUCE_USERNAME: ${{ secrets.SAUCE_USERNAME }}
           SAUCE_ACCESS_KEY: ${{ secrets.SAUCE_ACCESS_KEY }}
+      - name: Coverage
+        run: npm run coverage
+      - name: Codecov
+        uses: codecov/codecov-action@v1
+        with:
+          file: coverage/lcov.info

package.json

@@ -10,7 +10,7 @@
   "scripts": {
     "test": "standard && hallmark && (nyc -s node test/self.js | faucet) && nyc report",
     "coverage": "nyc report -r lcovonly",
-    "test-browsers": "airtap --verbose test/self.js > airtap.log",
+    "test-browsers": "airtap --coverage --verbose test/self.js",
     "test-browsers-local": "airtap -p local test/self.js",
     "hallmark": "hallmark --fix",
     "dependency-check": "dependency-check --no-dev -i queue-microtask .",