# Testing Method Security For example, we can test our example from [EnableReactiveMethodSecurity](../authorization/method.html#jc-erms) using the same setup and annotations we did in [Testing Method Security](../../servlet/test/method.html#test-method). Here is a minimal sample of what we can do: Java ``` @RunWith(SpringRunner.class) @ContextConfiguration(classes = HelloWebfluxMethodApplication.class) public class HelloWorldMessageServiceTests { @Autowired HelloWorldMessageService messages; @Test public void messagesWhenNotAuthenticatedThenDenied() { StepVerifier.create(this.messages.findMessage()) .expectError(AccessDeniedException.class) .verify(); } @Test @WithMockUser public void messagesWhenUserThenDenied() { StepVerifier.create(this.messages.findMessage()) .expectError(AccessDeniedException.class) .verify(); } @Test @WithMockUser(roles = "ADMIN") public void messagesWhenAdminThenOk() { StepVerifier.create(this.messages.findMessage()) .expectNext("Hello World!") .verifyComplete(); } } ``` Kotlin ``` @RunWith(SpringRunner::class) @ContextConfiguration(classes = [HelloWebfluxMethodApplication::class]) class HelloWorldMessageServiceTests { @Autowired lateinit var messages: HelloWorldMessageService @Test fun messagesWhenNotAuthenticatedThenDenied() { StepVerifier.create(messages.findMessage()) .expectError(AccessDeniedException::class.java) .verify() } @Test @WithMockUser fun messagesWhenUserThenDenied() { StepVerifier.create(messages.findMessage()) .expectError(AccessDeniedException::class.java) .verify() } @Test @WithMockUser(roles = ["ADMIN"]) fun messagesWhenAdminThenOk() { StepVerifier.create(messages.findMessage()) .expectNext("Hello World!") .verifyComplete() } } ``` [Testing](index.html)[Testing Web Security](web/index.html)