update test workflow

.github/workflows/tests.yml

@@ -10,7 +10,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ ubuntu-latest ]
-        python-version: [ 3.8, 3.9 ]
+        python-version: [ 3.8, '3.x' ]
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
@@ -24,27 +24,20 @@ jobs:
           path: ~/.cache/pip
           key: ${{ runner.os }}-pip-${{ matrix.python-version }}-${{ hashFiles('setup.py') }}
           restore-keys: ${{ runner.os }}-pip-${{ matrix.python-version }}-
-      - name: Install wheel
-        run: pip install wheel
-      - name: Run setup.py on Windows
-        if: contains(matrix.os, 'windows')
-        run: python setup.py install
       - name: Install dependencies
-        run: |
-          pip install wheel
-          pip install flake8
-          pip install -e .[testing]
+        run: pip install ".[testing,development]"
       - name: Lint with flake8
         run: |
           # stop the build if there are Python syntax errors or undefined names
           flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
           # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
           flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
       - name: Run tests with coverage
-        run: pytest --cov=coupledmodeldriver --numprocesses auto
+        run: pytest --numprocesses auto --cov ./
       - name: Upload coverage to Codecov
-        if: matrix.python-version == 3.9
-        uses: codecov/codecov-action@v1
+        if: matrix.python-version == '3.x'
+        uses: codecov/codecov-action@v2.1.0
         with:
-          flags: python${{ matrix.python-version }}-${{ runner.os }}
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: .coverage
           fail_ci_if_error: true