Added coverage and artifact upload to the test workflow

.github/workflows/pythonapp.yml

@@ -1,13 +1,23 @@
 # This workflow will install Python dependencies, run tests and lint with a single version of Python
 # For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
 
-name: Python application
+name: Python test
 
 on:
   push:
-    branches: [ master ]
+    paths:
+    - '**.py'
+    - 'src/kiplot'
+    - 'tests/**'
+    - '.github/workflows/pythonapp.yml'
+    tags-ignore:
+    - "v*"
   pull_request:
-    branches: [ master ]
+    paths:
+    - '**.py'
+    - 'src/kiplot'
+    - 'tests/**'
+    - '.github/workflows/pythonapp.yml'
 
 jobs:
   build:
@@ -17,11 +27,6 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-#    - name: Install dependencies
-#      run: |
-#        python -m pip install --upgrade pip
-#        pip install flake8 pytest
-#        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names
@@ -29,5 +34,18 @@ jobs:
         # exit-zero treats all errors as warnings.
         flake8 . --count --exit-zero --statistics
     - name: Test with pytest
+      env:
+        COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
       run: |
-        pytest-3
+        python3-coverage erase
+        pytest-3 --test_dir output
+        python3-coverage report
+        python3-coverage html -d output/htmlcov
+        coveralls
+    - name: Store results
+      if: ${{ always() }}
+      uses: actions/upload-artifact@v1
+      with:
+        name: Test_Output
+        path: output
+