junit5 + weld + mockito extension, how to inject #Context object - mockito

Question

This is my REST resource:
#Context
HttpServletRequest webRequest;
#Override
public DomainConfig get() {
return configDelegate.get(webRequest.getHeader("Origin"));
}
I've built my unit test with Junit 5 + Weld / Mockito extension.
#MockitoSettings(strictness = Strictness.STRICT_STUBS)
#ExtendWith(MockitoExtension.class)
#DisplayName("configs resource")
#EnableWeld
public class ConfigApiResourceTest {
#Mock
HttpServletRequest servletRequest;
#WeldSetup
public WeldInitiator weld = WeldInitiator
.from(
MockCommonResources.class,
ConfigApiResource.class,
ConfigDelegate.class,
ConfigService.class,
etc etc
)
.addBeans(createHttpServletRequest())
.activate(
RequestScoped.class,
ApplicationScoped.class
)
.build();
Bean<?> createHttpServletRequest() {
return MockBean.builder()
.types(HttpServletRequest.class)
.create(o -> servletRequest)
.build();
}
#Test
#DisplayName("config")
void config(ConfigApiResource configApiResource) {
final String url = "areaclient.infocert.it";
when(servletRequest.getHeader("Origin")).thenReturn(url);
final DomainConfig output = configApiResource.get();
assertNotNull(output);
}
}
The issue is HttpServletRequest webRequest is always null, probably because is not injected but it is a context object.
So the real question is, how can I produce a HttpServletRequest mock and inject as a #Context object?

Answer 1

After asking help also to weld-junit group, user mkouba gave the final solution.
final Weld weldBase = WeldInitiator.createWeld()
.addBeanClasses(
MockCommonResources.class,
ConfigApiResource.class,
ConfigDelegate.class,
ConfigService.class,
etc etc
)
.addContainerLifecycleObserver(ContainerLifecycleObserver.processAnnotatedType()
.notify(pat -> pat.configureAnnotatedType()
.filterFields(m -> m.isAnnotationPresent(Context.class))
.forEach(m -> m.add(javax.enterprise.inject.literal.InjectLiteral.INSTANCE))));
#WeldSetup
public WeldInitiator weld = WeldInitiator
.from(
weldBase
)
.activate(
RequestScoped.class,
ApplicationScoped.class
)
.addBeans(createHttpServletRequest())
.build();
By adding the observer on Context annotation, the servletRequest mock is properly injected on ConfigApiResource

Answer 2

We had this problem trying to #Inject private Boolean securityEnabled; objects, because Boolean cannot be mocked. We solved it with a custom JUnit/Mockito extension: https://github.com/exabrial/mockito-object-injection
#InjectionMap
private Map<String, Object> injectionMap = new HashMap<>();
#BeforeEach
public void beforeEach() throws Exception {
injectionMap.put("securityEnabled", Boolean.TRUE);
}
#AfterEach
public void afterEach() throws Exception {
injectionMap.clear();
}
You could do the same by #Mocking HttpServletRequest and Context and then setting them in the injection map.