Added code Coverage report generation

.coveragerc

@@ -0,0 +1,2 @@
+[run]
+omit = tests/*

tests/integration_tests/integration_helper.py

@@ -28,6 +28,7 @@ def basic_test(client,
     # Get the specific item
     response = client.get(f"{individual_link}/{item_id}")
     assert response.status_code == 200
+    client.put(f"{individual_link}/{item_id}", json=data)
     # Delete the specific item
     client.delete(f"{individual_link}/{item_id}")
     response = client.get(retrieve_link)

tests/integration_tests/test_catalog_item.py

@@ -30,3 +30,49 @@ def test_catalog_item(client):
         unique_field_name='id',
         data=new_catalog_item
     )
+
+
+def test_negative_cases_catalog_item(client):
+    new_catalog_type_json = {"type": "Laptops"}
+    response = client.post("/api/v1/catalog/types", json=new_catalog_type_json)
+    catalog_type_id = response.json['id']
+    new_catalog_brand = {'brand': 'Apple'}
+    response = client.post("/api/v1/catalog/brands", json=new_catalog_brand)
+    catalog_brand_id = response.json['id']
+    # The data with name missing
+    new_catalog_item = {
+        'description': '13.3-inch/33.78 cm, Apple M1 chip with 8‑core CPU and 8‑core GPU, 8GB RAM, 512GB SSD',
+        'price': 131990.00,
+        'catalog_type_id': catalog_type_id,
+        'brand_id': catalog_brand_id,
+        'available_stock': 100,
+        'max_stock': 500,
+        'restock_threshold': 10
+    }
+    response = client.post("/api/v1/catalog/items", json=new_catalog_item)
+    assert response.status_code == 400
+    new_catalog_item = {
+        'name': 'Apple MacBook Pro',
+        'description': '13.3-inch/33.78 cm, Apple M1 chip with 8‑core CPU and 8‑core GPU, 8GB RAM, 512GB SSD',
+        'price': 131990.00,
+        'catalog_type_id': catalog_type_id,
+        'brand_id': catalog_brand_id,
+        'available_stock': 100,
+        'max_stock': 500,
+        'restock_threshold': 10
+    }
+    response = client.post("/api/v1/catalog/items", json=new_catalog_item)
+    id = response.json['id']
+    updated_catalog_item = {
+        'description': '13.3-inch/33.78 cm, Apple M1 chip with 8‑core CPU and 8‑core GPU, 8GB RAM, 512GB SSD',
+        'price': 131990.00,
+        'catalog_type_id': catalog_type_id,
+        'brand_id': catalog_brand_id,
+        'available_stock': 1000,
+        'max_stock': 500,
+        'restock_threshold': 10
+    }
+    response = client.put(f"/api/v1/catalog/items/{id}", json=updated_catalog_item)
+    assert response.status_code == 400
+
+