Add simple GHA workflow to run tests

Add simple GHA workflow to run tests

.github/workflows/test-check.yaml

@@ -0,0 +1,41 @@
+name: Run Tests
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test-setup:
+    runs-on: ubuntu-latest
+    outputs:
+      python-diff: ${{ steps.python-check.outputs.output }}
+      full-check: ${{ steps.full-check.outputs.output }}
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: "Checking if sparsification_config python code was changed"
+        id: python-check
+        run: >
+          ((git diff --name-only origin/main HEAD | grep -E "[src|tests]/sparsification_config|setup.py")
+          || (echo $GITHUB_REF | grep -E "refs/heads/[release/|main]"))
+          && echo "::set-output name=output::1" || echo "::set-output name=output::0"
+      - name: "Checking if full tests need to run"
+        id: full-check
+        run: >
+          (echo $GITHUB_REF | grep -E "refs/heads/[release/|main]")
+          && echo "::set-output name=output::1" || echo "::set-output name=output::0"
+  python-tests:
+    runs-on: ubuntu-latest
+    needs: test-setup
+    if: ${{needs.test-setup.outputs.python-diff == 1}}
+    steps:
+        - uses: actions/checkout@v2
+        - name: "⚙️ Install dependencies"
+          run: pip3 install .[dev]
+        - name: "🔬 Running tests"
+          run: make test