[test]: Integration Tests for Controller Endpoints

[0PrashantYadav0]

Description

• Detailed Description:
  Integration tests are essential to validate the entire flow from controllers down to service layers and repositories. These tests simulate real HTTP requests and verify that the application behaves as expected.
• How to Solve:
  1. Set Up the Test Environment:
     Use Spring Boot’s testing support with @SpringBootTest and @AutoConfigureMockMvc.
  2. Write Tests Using MockMvc:
     For example, create a test class:

     @SpringBootTest
     @AutoConfigureMockMvc
     public class StockControllerIntegrationTest {
         @Autowired
         private MockMvc mockMvc;
     
         @Test
         public void testGetStockPrice() throws Exception {
             mockMvc.perform(get("/api/stocks/GOOG/price"))
                    .andExpect(status().isOk())
                    .andExpect(content().contentType(MediaType.APPLICATION_JSON));
         }
     }

  3. Cover Multiple Endpoints:
     Write tests for other endpoints, checking both successful responses and error conditions.
  4. Run the Integration Tests:
     Ensure all endpoints work as expected across the full stack.