Fix test coverage upload (#36)

.github/workflows/test.yml

@@ -1,6 +1,3 @@
-# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
-# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
-
 name: PopV
 
 on:
@@ -32,6 +29,8 @@ jobs:
           - os: ubuntu-latest
             python: "3.11"
 
+    name: ${{ matrix.name }} Python ${{ matrix.python }}
+
     env:
       OS: ${{ matrix.os }}
       PYTHON: ${{ matrix.python }}
@@ -44,19 +43,26 @@ jobs:
           python-version: ${{ matrix.python }}
           cache: "pip"
           cache-dependency-path: "**/pyproject.toml"
+
       - name: Install test dependencies
         run: |
           python -m pip install --upgrade pip wheel
+
       - name: Install dependencies
         run: |
-          pip install pytest-cov
-          pip install ${{ matrix.pip-flags }} ".[dev]"
+          pip install ${{ matrix.pip-flags }} ".[dev,test]"
+
       - name: Test
         env:
           MPLBACKEND: agg
           PLATFORM: ${{ matrix.os }}
           DISPLAY: :42
         run: |
-          pytest -v --cov --color=yes
+          coverage run -m pytest -v --color=yes
+
+      - name: Report coverage
+        run: |
+          coverage report
+
       - name: Upload coverage
         uses: codecov/codecov-action@v3