Add unittests for utils.py

.github/workflows/run_test.yml

@@ -0,0 +1,14 @@
+name: Unit test
+
+on: [push, pull_request]
+
+jobs:
+  unit-test:
+    runs-on: ['self-hosted', 'Linux', 'X64']
+    steps:
+    - name: Checkout
+      uses: actions/[email protected]
+    - name: Run pytest
+      run: |
+        python2 -m pytest -v tests
+