Test tf 2.15.0 CI build

.github/workflows/test.yml

@@ -142,3 +142,45 @@ jobs:
 
       - name: Run tests
         run: pytest -v tests/test_model_expected_result.py
+
+  tf-2.15:
+    needs: build
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-20.04]
+        python-version: ["3.9", "3.10", "3.11"]
+        tf-version: ["2.15.0"]
+
+    steps:
+      - uses: actions/checkout@v1
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: pip install wheel setuptools flake8 pytest-cov
+
+      - name: Install tensorflow-datasets
+        run: |
+            pip install tensorflow==${{ matrix.tf-version }} "tensorflow-datasets<=4.8.2"
+            pip install "protobuf<=3.20" --force-reinstall
+
+      - name: Download artifact
+        uses: actions/download-artifact@v3
+        with:
+          name: "Python wheel"
+
+      - name: Install wheel
+        run: pip install --find-links=. gradient_accumulator-*
+        shell: bash
+
+      - name: Debug pip deps
+        run: pip list
+
+      - name: Test library accessibility
+        run: python -c "from gradient_accumulator import GradientAccumulateModel, GradientAccumulateOptimizer"
+
+      - name: Run tests
+        run: pytest -v tests/test_model_expected_result.py