Testing RESTful APIs
Use `MockMvc` or `WebTestClient` to write comprehensive integration tests for your Spring Boot REST controllers.
Why Test REST APIs?
RESTful APIs are the backbone of many modern applications. Testing them is crucial to ensure they work as expected, handle various inputs, and return correct responses.
This lesson focuses on how to write integration tests for your Spring Boot REST controllers using powerful tools: MockMvc and WebTestClient.
Spring Boot Test Setup
To test Spring Boot controllers, we need a special setup. The @SpringBootTest annotation loads the full application context, and @AutoConfigureMockMvc configures MockMvc for us.
Here's a basic structure for a controller test class:
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.web.servlet.MockMvc;
@SpringBootTest
@AutoConfigureMockMvc
public class MyApiControllerTest {
@Autowired
private MockMvc mockMvc;
@Test
void contextLoads() {
// Your tests will go here
}
}