Run tests with PyTest and Add workflow

.github/workflows/test.yml

@@ -0,0 +1,42 @@
+name: Tests
+
+on:
+  pull_request:
+    branches: [ master ]
+    paths-ignore:
+      - '**.md'
+      - 'docs/**'
+  workflow_dispatch:
+
+env:
+  USE_BAZEL_VERSION: "7.6.1"
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+
+
+    strategy:
+      matrix:
+        python-version: ['3.9', '3.10', '3.11', '3.12']
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+        cache: 'pip'
+        cache-dependency-path: |
+          setup.py
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install .[test]
+
+    - name: Run unit tests
+      shell: bash
+      run: |
+        pytest

pytest.ini

@@ -0,0 +1,4 @@
+[pytest]
+addopts = -ra
+testpaths =
+    tensorflow_metadata

setup.py

@@ -140,8 +140,11 @@ def run(self):
     ],
     python_requires=">=3.9,<4",
     packages=find_packages(),
-    extra_requires={
+    extras_require={
         "dev": ["precommit"],
+        "test": [
+            "pytest>=8,<9",
+        ],
     },
     include_package_data=True,
     description="Library and standards for schema and statistics.",