tests: use github workflow for pytest

Move the pytest testing from TravisCI to Github workflow.
Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 3e79f032)

.github/workflows/pytest.yml

+name: pytest
+on:
+  pull_request:
+    paths:
+      - 'library/**.py'
+      - 'plugins/filter/**.py'
+      - 'tests/library/**.py'
+      - 'tests/plugins/filter/**.py'
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.6, 3.7, 3.8]
+    name: Python ${{ matrix.python-version }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+          architecture: x64
+      - run: pip install -r tests/requirements.txt
+      - run: pytest --cov=library/ --cov=plugins/filter/ -vvvv tests/library/ tests/plugins/filter/

.travis.yml

@@ -7,8 +7,7 @@ notifications:
   webhooks: https://galaxy.ansible.com/api/v1/notifications/
 install:
   - pip install -r tests/requirements.txt
-  - pip install ansible-lint==4.2.0 pytest-cov
+  - pip install ansible-lint==4.2.0
 script:
   - if [[ -n $(grep --exclude-dir=.git -P "\xa0" -r .) ]]; then echo 'NBSP characters found'; exit 1; fi
-  - pytest --cov=library/ --cov=plugins/filter/ -vvvv tests/library/ tests/plugins/filter/
   - for i in $(ls -1 roles/); do ANSIBLE_LOG_PATH=/dev/null ansible-lint -x 204 -v roles/$i/; if [ $? -ne 0 ]; then exit 1; fi; done

tests/requirements.txt

@@ -9,3 +9,4 @@ netaddr
 mock
 jmespath
 pytest-rerunfailures<9.0
+pytest-cov