Update and rename test_preprocessing.py to i191855_update.yml

ch08/additional_features/.github/workflows/i191855_update.yml

@@ -0,0 +1,17 @@
+name : push events workflow
+
+on : push 
+
+jobs :
+  unit-testing :
+    runs-on: ubuntu-latest
+
+    steps :
+      - name : Checkout Code
+        uses : actions/checkout@v2
+
+      - name : Install Package
+        run  : pip install pytest numpy pandas
+
+      - name : Run Test
+        run  : pytest test_preprocessing.py