Implement codecov github action

Author: Paulinakhew

.github/workflows/build.yml

@@ -1,12 +1,5 @@
 name: CI
-
-env:
-  CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
-
-on: 
-  push:
-
-
+on: [push]
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -16,18 +9,25 @@ jobs:
         version: [2.7, 3.6, 3.8]
 
     steps: 
-      - uses: actions/checkout@v2
+      - name: Checkout
+        uses: actions/checkout@v2
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.version }}
       - name: Install Dependencies
         run: | 
           python -m pip install --upgrade pip
-          pip install pytest mock codecov
-          python setup.py install 
+          pip install pytest mock pytest-cov
+          pytest --cov=./ --cov-report=xml
+          python setup.py install
       - name: Run Tests
         run: |
-          coverage run -m pytest -v
-      - name: Upload to codecov.io
-        run: bash <(curl -s https://codecov.io/bash)
+          python -m pytest -v
+      - name: upload coverage to Codecov
+        uses: codecov/codecov-action@v1
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          name: codecov-umbrella
+          fail_ci_if_error: true
+          verbose: true