CODEWITHSUNDEEP
javaspringkotlinvaadinvaadin8
User1291
User1291

Reputation: 8182

How do you fake a vaadin session for integration tests?

Let's say I have a custom annotation

@ViewScope //<-- the issue
@Qualifier
@Component
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE, ElementType.FIELD,ElementType.PARAMETER,ElementType.METHOD, ElementType.ANNOTATION_TYPE})
public @interface Foo { ... }

I now want to test a method that is supposed to retrieve all the beans with that annotation.

How do I fake the vaadin session s.t. such an integration test

@RunWith(SpringJUnit4ClassRunner::class)
@SpringBootTest
@WebAppConfiguration
class FooAnnotationIT{

    @Autowired(required = false) //required=false --> empty list instead of exception when none are found
    @Foo
    val foos:List<Any> = mutableListOf()

    @Test
    fun `all beans are present`(){
        assertThat(foos.size).isEqualTo(5)
    }
}

succeeds instead of crashing with 

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'blah.blah.blah.FooAnnotationIT': Unsatisfied dependency expressed through field 'foos'
    Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'viewCache': Scope 'vaadin-ui' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton
    Caused by: java.lang.IllegalStateException: No VaadinSession bound to current thread

Upvotes: 3

Views: 367

Answers (1)

Erik Lumme
Erik Lumme

Reputation: 5342

Give Karibu Testing a shot https://github.com/mvysny/karibu-testing/tree/master/karibu-testing-v8

It has methods for mocking a Vaadin session, it supports V8 as well as V10+, and it even supports Kotlin!

Upvotes: 4

Related Questions