fix: moved coveralls into build workflow

.github/workflows/build.yml

@@ -1,13 +1,13 @@
-name: Build process
-on: [push, pull_request]
+name: Build, test and coverage
+on: push
 
 jobs:
-  test:
-    name: Build and test
-    runs-on: ubuntu-latest
+  test-matrix:
     strategy:
       matrix:
-        node: [8, 10, 12]
+        node: [8, 10, 12, 14]
+    name: Test build Node v ${{ matrix.node }}
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v1
@@ -18,17 +18,51 @@ jobs:
           node-version: ${{ matrix.node }}
 
       - name: Cache node modules
+        id: cache-node-modules
         uses: actions/cache@v1
         with:
-          path: node_modules
-          key: build-${{ matrix.node }}-${{ hashFiles('**/package-lock.json') }}
-          restore-keys: build-${{ matrix.node }}-${{ hashFiles('**/package-lock.json') }}
+          path: ./node_modules
+          key: test-${{ matrix.node }}-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: test-${{ matrix.node }}-${{ hashFiles('**/package-lock.json') }}
 
       - name: Install deps
+        if: steps.cache-node-modules.outputs.cache-hit != 'true'
         run: npm install
 
       - name: Lint code
         run: make lint
 
       - name: Run tests
         run: make tests
+
+  test-success:
+    runs-on: ubuntu-latest
+    needs: test-matrix
+    steps:
+      - name: Matrix tests passed
+        run: echo Done!
+
+  test-coverage:
+    runs-on: ubuntu-latest
+    needs: test-success
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 12
+      - uses: actions/cache@v1
+        id: cache-node-modules
+        with:
+          path: ./node_modules
+          key: test-12-${{hashFiles('./package-lock.json')}}
+          restore-keys: test-12-${{hashFiles('./package-lock.json')}}
+      - name: Install modules
+        if: steps.cache-node-modules.outputs.cache-hit != 'true'
+        run: npm install
+      - name: Test with coverage
+        run: npm run test-cover
+      - name: Coveralls
+        uses: coverallsapp/github-action@master
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+