Java – Spring overriding primary bean with non-primary bean

I am trying to override a Spring bean during a test declared in a test configuration with the use of @Primary. One declaration is in the src/main/java path, the other, the primary, is in src/test/java path.

However, Spring is intentionally replacing the primary bean with the the non-primary bean, the one I don't want to use for the test. If I simply comment out the production (src/main/java) configuration bean, it uses the primary test (src/main/test) bean in the test configuration as desired. (Clearly I can't comment out code every time I want to run a test.)

From the logs:

o.s.b.f.s.DefaultListableBeanFactory – Overriding bean definition for bean 'sqsConnectionFactory' with a different definition: replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=true; factoryBeanName=testJmsConfiguration; factoryMethodName=sqsConnectionFactory; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [com/foo/configuration/TestJmsConfiguration.class]]

with

[Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=jmsConfiguration; factoryMethodName=sqsConnectionFactory; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [com/foo/configuration/JmsConfiguration.class]]

Why is spring replacing a primary bean with a non-primary bean and how do I get Spring to use the bean specifically marked as the primary bean?

Edit:
The src/main/java configuration:

@Configuration
public class JmsConfiguration {

... other bean declarations here ...

@Bean
public SQSConnectionFactory sqsConnectionFactory(Region region) throws JMSException {
    return SQSConnectionFactory.builder()
            .withRegion(region)
            .build();
}
}

The test configuration:

@Configuration
public class TestJmsConfiguration {

@Bean(name="messageProducerMock")
public MessageProducer mockMessageProducer() {
    return new MessageProducerMock();
}

... other bean declarations here ...

@Bean
@Primary
public SQSConnectionFactory sqsConnectionFactory(@Qualifier("messageProducerMock") MessageProducer messageProducerMock) throws JMSException {
    ... returning setup mock here
}
}

The class with the tests is annotated with:

@RunWith(SpringRunner.class)
@SpringBootTest
@ActiveProfiles(profiles = {"test"})