add unittest to actions

.github/workflows/unittest.yml

+name: Unit Tests
+on: [push, pull_request]
+
+jobs:
+  unittest:
+    runs-on: ubuntu-latest
+    strategy:
+      max-parallel: 4
+      matrix:
+        python-version: [2.7, 3.6]
+        TF-version: [1.3.0, 1.14.0, nightly]
+    steps:
+      - uses: actions/checkout@v1
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v1
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install scikit-image opencv-python lmdb h5py pyarrow
+          python -m pip install .
+          python -c "import tensorpack.dataflow"
+          # check that dataflow can be imported alone without tensorflow
+          python -c "import cv2; print('OpenCV '+ cv2.__version__)"
+      - name: Install TF
+        env:
+          TF_VERSION: ${{ matrix.TF-version }}
+          # compatible with travis scripts
+          TRAVIS_PYTHON_VERSION: ${{ matrix.python-version }}
+        run: |
+          ./tests/install-tensorflow.sh
+          python -c "import tensorflow as tf; print(tf.VERSION, tf.GIT_VERSION)"
+
+      - name: Test
+        run: ./tests/run-tests.sh
+
+

.travis.yml

@@ -20,24 +20,24 @@ matrix:
   include:
   - os: linux
     python: 2.7
-    env: TF_VERSION=1.3.0 TF_TYPE=release
+    env: TF_VERSION=1.3.0
   - os: linux
     python: 3.6
-    env: TF_VERSION=1.3.0 TF_TYPE=release
+    env: TF_VERSION=1.3.0
   - os: linux
     python: 2.7
-    env: TF_VERSION=1.14.0 TF_TYPE=release
+    env: TF_VERSION=1.14.0
   - os: linux
     python: 3.6
-    env: TF_VERSION=1.14.0 TF_TYPE=release PYPI=true
+    env: TF_VERSION=1.14.0 PYPI=true
   - os: linux
     python: 2.7
-    env: TF_TYPE=nightly
+    env: TF_VERSION=nightly
   - os: linux
     python: 3.6
-    env: TF_TYPE=nightly
+    env: TF_VERSION=nightly
   allow_failures:
-  - env: TF_TYPE=nightly
+  - env: TF_VERSION=nightly
 
 install:
 - pip install -U pip    # the pip version on travis is too old

tests/install-tensorflow.sh

 #!/bin/bash -e
 
-if [ $TF_TYPE == "release" ]; then
+if [ $TF_VERSION == "nightly" ]; then
+	TF_BINARY_URL="tf-nightly"
+else
   if [[ $TRAVIS_PYTHON_VERSION == 2* ]]; then
 		TF_BINARY_URL=https://storage.googleapis.com/tensorflow/linux/cpu/tensorflow-${TF_VERSION}-cp27-none-linux_x86_64.whl
 	fi
@@ -14,9 +16,6 @@ if [ $TF_TYPE == "release" ]; then
 		TF_BINARY_URL=https://storage.googleapis.com/tensorflow/linux/cpu/tensorflow-${TF_VERSION}-cp36-cp36m-linux_x86_64.whl
 	fi
 fi
-if [ $TF_TYPE == "nightly" ]; then
-	TF_BINARY_URL="tf-nightly"
-fi
 
 
-pip install  --upgrade ${TF_BINARY_URL}
+python -m pip install --upgrade ${TF_BINARY_URL}