Replace travis with workflow ci (#54)

Author: ncrubin

.github/workflows/ci.yml

@@ -0,0 +1,54 @@
+#   Copyright 2020 Google
+
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
+
+name: Continuous Integration
+
+on: [pull_request]
+
+jobs:
+  pytest:
+    name: Pytest Ubuntu
+    runs-on: ubuntu-16.04
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions/setup-python@v1
+        with:
+          python-version: '3.6'
+          architecture: 'x64'
+      - name: Install requirements
+        run: |
+          pip install -r requirements.txt
+      - name: Pytest check
+        run: |
+          pip install pytest
+          pytest
+  pytest37:
+    name: Pytest Ubuntu
+    runs-on: ubuntu-16.04
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions/setup-python@v1
+        with:
+          python-version: '3.7'
+          architecture: 'x64'
+      - name: Install requirements
+        run: |
+          pip install -r requirements.txt
+          pip install -r dev_tools/conf/pip-list-dev-tools.txt
+          git config --global user.name ${GITHUB_ACTOR}
+      - name: Pytest check
+        run: |
+          pip install pytest
+          pytest