Run any Skill in Manus with one click

spring-webflux-testing

Stars51

Forks2

UpdatedApril 8, 2026 at 03:26

WebFlux testing requires StepVerifier for reactive streams — standard assertions silently pass on empty Flux. WebTestClient API differs from MockMvc. Read before testing reactive endpoints. Triggers: @WebFluxTest, WebTestClient, StepVerifier, Mono, Flux, mockUser(), mockJwt(), mutateWith, verifyComplete, expectBody, expectStatus, @AutoConfigureWebTestClient.

Installation

Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.

Run Skill in Manus

Source

spring-ai-community

spring-ai-community/spring-testing-skills

View GitHub Repository View Creator Repositories

Download

Run Skill in Manus

Related occupationsSOC

Based on SOC occupation classification

Software Quality Assurance Analysts and TestersComputer and Mathematical Occupations·SOC 15-1253

File Explorer

2 files

SKILL.md

readonly

name	spring-webflux-testing
description	WebFlux testing requires StepVerifier for reactive streams — standard assertions silently pass on empty Flux. WebTestClient API differs from MockMvc. Read before testing reactive endpoints. Triggers: @WebFluxTest, WebTestClient, StepVerifier, Mono, Flux, mockUser(), mockJwt(), mutateWith, verifyComplete, expectBody, expectStatus, @AutoConfigureWebTestClient.
version	0.1.0
license	Apache-2.0

Spring WebFlux Testing

Signals: @WebFluxTest, WebTestClient, StepVerifier, Mono, Flux, mutateWith, mockUser(), mockJwt(), thenCancel, verifyComplete, withVirtualTime

Tested With

Spring Boot 3.2+ / Spring Boot 4.x
Spring Framework 6.x / Spring Framework 7.x
Reactor Core 3.5+ / 3.7+
Spring Security 6.x / 7.x (auto-configured in @WebFluxTest)
JUnit 5

Do NOT Use This Skill When

Testing Spring MVC (servlet-based) controllers → use spring-mvc-testing
Testing Spring Security rules in a servlet-based application → use spring-security-testing
Testing JPA repositories → use spring-jpa-testing
Testing WebSocket or STOMP messaging → use spring-websocket-testing
Writing pure unit tests for reactive service logic → use spring-testing-fundamentals for AssertJ/Mockito patterns, combine with StepVerifier for reactive

When to Read References

Situation	Read
Setting up `@WebFluxTest`, `WebTestClient` configuration	`references/webflux-testing-patterns.md`
GET, POST, PUT, DELETE with `WebTestClient`	`references/webflux-testing-patterns.md`
`expectBody`, `expectBodyList`, `jsonPath` assertions	`references/webflux-testing-patterns.md`
`StepVerifier` for Flux, Mono, error signals	`references/webflux-testing-patterns.md`
`StepVerifier.withVirtualTime` for time-based operators	`references/webflux-testing-patterns.md`
Testing reactive security with `mutateWith(mockUser())`, `mockJwt()`	`references/webflux-testing-patterns.md`
Testing SSE streams	`references/webflux-testing-patterns.md`
Boot 3.x → 4.x WebFlux testing changes	`references/webflux-testing-patterns.md`

More from this repository

same repository

spring-jpa-testing

spring-ai-community/spring-testing-skills

@DataJpaTest requires TestEntityManager + flush()/clear() before assertions — without this, tests read from Hibernate L1 cache and pass falsely. Read before writing any JPA test. Triggers: @DataJpaTest, JpaRepository, TestEntityManager, @ServiceConnection, Testcontainers, @Modifying, Hibernate 6/7, @AutoConfigureTestDatabase, flush and clear in tests, @Transactional in tests, jakarta.persistence.EntityManager.

2026-04-0851

spring-mvc-testing

spring-ai-community/spring-testing-skills

Boot 4+ replaced MockMvc assertions with MockMvcTester — incompatible API your training data gets wrong. Read before writing any @WebMvcTest. Triggers: @WebMvcTest, MockMvc, MockMvcTester, @RestController, jsonPath, @GetMapping, @PostMapping, @AutoConfigureMockMvc, MockMvcRequestBuilders, status().isOk(), @RestControllerAdvice, contentType(APPLICATION_JSON).

2026-04-0851

spring-security-testing

spring-ai-community/spring-testing-skills

Spring Security 7 changed method security defaults and CSRF handling — tests using hasRole() or csrf() may need updates. Read before testing authentication, authorization, or secured endpoints. Triggers: @WithMockUser, csrf(), jwt(), oauth2Login(), SecurityFilterChain, @PreAuthorize, AccessDeniedException, @WithUserDetails, @WithSecurityContext, hasRole, hasAuthority, SCOPE_, JwtAuthenticationToken.

2026-04-0851

spring-testing-fundamentals

spring-ai-community/spring-testing-skills

Boot 4 renamed @MockBean to @MockitoBean, moved test slice annotations to new packages, and changed context caching behavior. Read for correct AssertJ/BDDMockito idioms and Boot 4 migration. Default fallback when no specific slice annotation is present. Triggers: assertThat, BDDMockito, ArgumentCaptor, @MockitoBean, @MockitoSpyBean, @DirtiesContext, UnnecessaryStubbingException, testing pyramid, context cache.

2026-04-0851

spring-websocket-testing

spring-ai-community/spring-testing-skills

WebSocket tests require @SpringBootTest(RANDOM_PORT) and async message handling — @WebMvcTest won't work. Timeout and session leak traps are common. Read before testing STOMP or WebSocket. Triggers: WebSocketStompClient, StompSession, @MessageMapping, @SendToUser, BlockingQueue, /topic/, /queue/, CountDownLatch, session.subscribe, session.send.

2026-04-0851

name	spring-webflux-testing
description	WebFlux testing requires StepVerifier for reactive streams — standard assertions silently pass on empty Flux. WebTestClient API differs from MockMvc. Read before testing reactive endpoints. Triggers: @WebFluxTest, WebTestClient, StepVerifier, Mono, Flux, mockUser(), mockJwt(), mutateWith, verifyComplete, expectBody, expectStatus, @AutoConfigureWebTestClient.
version	0.1.0
license	Apache-2.0

Spring WebFlux Testing

Signals: @WebFluxTest, WebTestClient, StepVerifier, Mono, Flux, mutateWith, mockUser(), mockJwt(), thenCancel, verifyComplete, withVirtualTime

Tested With

Spring Boot 3.2+ / Spring Boot 4.x
Spring Framework 6.x / Spring Framework 7.x
Reactor Core 3.5+ / 3.7+
Spring Security 6.x / 7.x (auto-configured in @WebFluxTest)
JUnit 5

Do NOT Use This Skill When

Testing Spring MVC (servlet-based) controllers → use spring-mvc-testing
Testing Spring Security rules in a servlet-based application → use spring-security-testing
Testing JPA repositories → use spring-jpa-testing
Testing WebSocket or STOMP messaging → use spring-websocket-testing
Writing pure unit tests for reactive service logic → use spring-testing-fundamentals for AssertJ/Mockito patterns, combine with StepVerifier for reactive

When to Read References

Situation	Read
Setting up `@WebFluxTest`, `WebTestClient` configuration	`references/webflux-testing-patterns.md`
GET, POST, PUT, DELETE with `WebTestClient`	`references/webflux-testing-patterns.md`
`expectBody`, `expectBodyList`, `jsonPath` assertions	`references/webflux-testing-patterns.md`
`StepVerifier` for Flux, Mono, error signals	`references/webflux-testing-patterns.md`
`StepVerifier.withVirtualTime` for time-based operators	`references/webflux-testing-patterns.md`
Testing reactive security with `mutateWith(mockUser())`, `mockJwt()`	`references/webflux-testing-patterns.md`
Testing SSE streams	`references/webflux-testing-patterns.md`
Boot 3.x → 4.x WebFlux testing changes	`references/webflux-testing-patterns.md`