add test coverage

.github/workflows/coverage.yml

@@ -0,0 +1,33 @@
+name: codecov
+on: [push]
+jobs:
+  run:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    env:
+      OS: ${{ matrix.os }}
+      PYTHON: '3.11'
+    steps:
+    - uses: actions/checkout@master
+    - name: Setup Python
+      uses: actions/setup-python@master
+      with:
+        python-version: 3.11
+    - name: Generate coverage report
+      run: |
+        pip install pytest
+        pip install pytest-cov
+        pytest --cov=./ --cov-report=xml
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v3
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}
+        directory: ./coverage/reports/
+        env_vars: OS,PYTHON
+        fail_ci_if_error: true
+        files: ./coverage1.xml,./coverage2.xml,!./cache
+        flags: unittests
+        name: codecov-umbrella
+        verbose: true

.github/workflows/main.yml

@@ -13,6 +13,9 @@ jobs:
             matrix:
                 os: [ubuntu-latest, macos-latest, windows-latest]
                 python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+                exclude:
+                  - os: macos-latest
+                    python-version: "3.7"
         steps:
             - uses: actions/checkout@v3
             - name: Set up Python ${{ matrix.python-version }}

docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.8-slim-buster
+FROM python:3.11-slim-buster
 
 WORKDIR pypfopt
 COPY requirements.txt .