17 docs tagged with "testing"

How to use @SpringBootTest with TestRestTemplate and WebTestClient to write full-context Spring Boot integration tests.

Hands-on walkthrough of @SpringBootTest with TestRestTemplate, @MockBean for external dependencies, and Testcontainers for real database integration.

The foundational Java testing framework — lifecycle annotations, assertions, parameterized tests, and test organization.

Hands-on code examples and step-by-step walkthroughs for JUnit 5 lifecycle, assertions, and parameterized tests.

How to create mock objects, stub method calls, verify interactions, and capture arguments in Java unit tests.

Hands-on code examples for creating mocks, stubbing behavior, verifying interactions, and capturing arguments with Mockito.

How to test Spring MVC and Spring WebFlux controllers at the HTTP level without starting a real server, using MockMvc and WebTestClient.

Hands-on walkthrough of HTTP-level controller testing with MockMvc and WebTestClient — requests, assertions, security, and validation.

Consolidated interview Q&A for Spring Boot covering auto-configuration, properties, starters, Actuator, and testing — beginner through advanced.

How to use @WebMvcTest, @DataJpaTest, and @JsonTest to write fast, focused Spring Boot tests that load only the layers you need.

Hands-on walkthrough of @WebMvcTest, @DataJpaTest, and @JsonTest with realistic Order API examples.

How to test Spring Boot applications using @SpringBootTest, test slices (@WebMvcTest, @DataJpaTest), @MockBean, and Testcontainers for integration tests with real infrastructure.

How to use Testcontainers to run real PostgreSQL, MySQL, Redis, and Kafka instances inside Docker containers during Java tests.

Hands-on examples for running PostgreSQL, Redis, and Kafka in Docker containers during tests, with Spring Boot 3.1+ @ServiceConnection.

Consolidated interview Q&A for Java Testing covering JUnit 5, Mockito, Spring Boot test slices, integration tests, Testcontainers, MockMvc, and WebTestClient.

Quick-reference summary of Java testing concepts — JUnit 5, Mockito, Spring Boot test slices, integration tests, Testcontainers, MockMvc, and WebTestClient.

How LoanApplicationService is unit-tested with JUnit 5 and Mockito — covering risk classification, EMI calculation, and all eligibility rules using @Nested test classes.