fix: add tests and ci

Author: thomasrockhu-codecov

.github/workflows/ci.yml

@@ -15,3 +15,7 @@ jobs:
       run: pip install -r api/requirements.txt
     - name: Run tests and collect coverage
       run: pytest --cov=api.calculator --cov-report=xml
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v5
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}

api/calculator.py

@@ -1,4 +1,5 @@
-ass Calculator:
+class Calculator:
+
     def add(x, y):
         return x + y
 

api/test_calculator.py

@@ -28,4 +28,4 @@ def test_divide():
     assert Calculator.divide(1.0, 2.0) == 0.5
     assert Calculator.divide(0, 2.0) == 0
     assert Calculator.divide(-4, 2.0) == -2.0
-    # assert Calculator.divide(2, 0) == 'Cannot divide by 0'
+    assert Calculator.divide(2, 0) == 'Cannot divide by 0'