Reuse Spring application context across different Spock tests

Question

I would like to reuse the same Spring context across several integration tests written in Spock framework. According to the documentation context caching is based on classes property of @ContextConfiguration annotation.

That's an example test:

@SpringBootTest
@ContextConfiguration(classes = Application.class)
class ExampleIntegrationTest extends Specification {

    def 'should reuse Spring context if already created'() {
        expect:
        1 == 1
    }
}

The second test also contains the same @ContextConfiguration annotation, i.e.

@ContextConfiguration(classes = Application.class)

but when I run all tests I can see in the console that Spring context is created per each test. I would like to cache it between different tests. Am I missing something? Basically, I would like to achieve the same thing as described here (stackoverflow question) but in Spock instead of JUnit.

Leonard Brünings · Accepted Answer · 2019-04-14 19:19:24Z

2

Context Caching is done by the Spring Framework, it follows the rules described here, i.e., it builds a context cache key factoring in different factors. As long as all of them are the same, it reuses the same context.

locations (from @ContextConfiguration)
classes (from @ContextConfiguration)
contextInitializerClasses (from @ContextConfiguration)
contextCustomizers (from ContextCustomizerFactory)
contextLoader (from @ContextConfiguration)
parent (from @ContextHierarchy)
activeProfiles (from @ActiveProfiles)
propertySourceLocations (from @TestPropertySource)
propertySourceProperties (from @TestPropertySource)
resourceBasePath (from @WebAppConfiguration)

Spock supports @SpringBootTest or any of the other Spring Boot test annotations, such as @WebMvcTest, directly and you should not add an explicit @ContextConfiguration(classes = Application.class).

edited Apr 14, 2019 at 19:19

answered Apr 13, 2019 at 20:39

Leonard Brünings

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4 Comments

k13i Over a year ago

Thank you for your answer. Finally it turned out that tests were running with different profiles and that's why Spring did not reuse the context.

Leonard Brünings Over a year ago

k13i good that you found out the difference, could you please accept the answer.

jaco0646 Over a year ago

My tests are not sharing a context even though they share a common base class annotated with @SpringBootTest(webEnvironment = RANDOM_PORT, classes = [MyTestConfig, MyApp]). The annotations listed above are not used at all. How can I troubleshoot the context caching?

Leonard Brünings Over a year ago

You can see what is going on, by setting the logger org.springframework.test.context.cache to DEBUG. If you are using @MockBean then this will also prevent reuse.

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