Merge pull request #1073 from saroad2/add_coverage_tests_to_core

Add code coverage to Toga

.coveragerc

@@ -0,0 +1,7 @@
+[run]
+source = src/core/toga
+omit =
+    src/core/toga/**/__init__.py
+
+[report]
+show_missing = True

.github/workflows/ci.yml

@@ -47,13 +47,17 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         python -m pip install --upgrade setuptools
-        python -m pip install pytest-tldr
-        python -m pip install -e src/core
-        python -m pip install -e src/dummy
+        python -m pip install --upgrade tox
     - name: Test
       run: |
-        cd src/core
-        python setup.py test
+        tox -e py
+    - name: Check coverage
+      uses: codecov/codecov-action@v1
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}
+        file: ./coverage.xml
+        flags: unittests
+        fail_ci_if_error: true
 
   python-versions:
     # Only run this and subsequent steps on branches.
@@ -76,13 +80,10 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         python -m pip install --upgrade setuptools
-        python -m pip install pytest-tldr
-        python -m pip install -e src/core
-        python -m pip install -e src/dummy
+        python -m pip install --upgrade tox
     - name: Test
       run: |
-        cd src/core
-        python setup.py test
+        tox -e py
 
   windows:
     name: Winforms backend tests

.gitignore

@@ -5,6 +5,7 @@
 *.dist-info
 .eggs
 .coverage
+coverage.xml
 dist
 build
 _build

MANIFEST.in

@@ -4,6 +4,7 @@ include LICENSE
 include README.rst
 include release.sh
 include tox.ini
+include .coveragerc
 recursive-exclude attic *
 recursive-exclude contrib *
 recursive-exclude demo *

tox.ini

@@ -4,16 +4,20 @@
 # and then run "tox" from this directory.
 
 [tox]
-# envlist = flake8,towncrier-check,docs,package,py{35,36,37,38}
-envlist = flake8,towncrier-check,docs,package
+envlist = flake8,towncrier-check,docs,package,py{35,36,37,38}
 skip_missing_interpreters = true
 
-# [testenv]
-# deps =
-#     pytest
-#     pytest-tldr
-# commands =
-#     pytest -vv tests
+[testenv]
+skip_install = True
+deps =
+    setuptools
+    pytest-tldr
+    pytest-cov
+commands:
+    python -m pip install -e src/core
+    python -m pip install -e src/dummy
+    pytest src/core/tests --cov
+    coverage xml
 
 [testenv:flake8]
 skip_install = True