Add github workflow for build and tests

Author: mwcraig

.github/workflows/build.yml

@@ -0,0 +1,62 @@
+name: Test/build
+
+on: [pull_request]
+
+jobs:
+  build:
+
+
+    strategy:
+      max-parallel: 4
+      fail-fast: false
+      matrix:
+        python-version: [3.6, 3.7, 3.8]
+        platform: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.platform }}
+
+    steps:
+
+    - uses: actions/checkout@v1
+
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v1
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Get pip cache location
+      id: pip-cache
+      run: |
+        python -c "from pip._internal.locations import USER_CACHE_DIR; print('::set-output name=dir::' + USER_CACHE_DIR)"
+
+    - uses: actions/cache@v1
+      with:
+        path: ${{ steps.pip-cache.outputs.dir }}
+        key: ${{ runner.os }}-pip-${{ hashFiles('**/setup.py') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install pytest Cython wheel
+
+    - name: Build sdist
+      run: |
+        python setup.py sdist
+
+    - name: Build wheel
+      run: |
+        python setup.py bdist_wheel
+
+    - name: Install vpython
+      run: |
+        pip install .
+
+    - name: Run tests
+      run: |
+        pytest vpython
+
+    - name: Import test
+      run: |
+        python -c "import vpython"

.travis.yml

@@ -55,7 +55,9 @@ script:
         fi
       fi
     - echo $UPLOAD_SDIST
-    # Run tests
+    # Run tests ALWAYS for now
+    - pip install .
+    - pytest vpython
     - if [ "$TRAVIS_OS_NAME" == "linux" ]; then
         python setup.py install;
         py.test vpython;