fix ut and file structure

.github/workflows/superscript-unit.yml

@@ -17,8 +17,6 @@ jobs:
       matrix:
         python-version: [3.7, 3.8]
 
-    env:
-      working-directory: ./data-analysis/
 
     steps:
     - uses: actions/checkout@v2
@@ -30,9 +28,7 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install pytest
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
-      working-directory: ${{ env.working-directory }}
+        if [ -f src/requirements.txt ]; then pip install -r src/requirements.txt; fi
     - name: Test with pytest
       run: |
-        pytest
-      working-directory: ${{ env.working-directory }}
+        pytest test/