@Test
public void getService_MUST_return_the_same_instance_WHEN_in_dev_mode() throws Exception {
doReturn(Mode.DEV).when(configurationSource()).runMode();
try (TemporaryPlayApplication ignored = new TemporaryPlayApplication()) {
assertSame(serviceLoader.getService(), serviceLoader.getService());
}
}
@Test
public void
getService_MUST_return_the_fallback_service_instance_WHEN_the_service_is_not_configured()
throws Exception {
configureService(null);
assertEquals(FALLBACK_SERVICE_INSTANCE, serviceLoader.getService());
}
@Test
public void
getService_MUST_not_use_the_default_instance_creator_AFTER_temporary_services_were_closed()
throws Exception {
withDefaultService(DEFAULT_SERVICE_A_INSTANCE, () -> {});
assertThat(serviceLoader.getService(), instanceOf(CUSTOM_SERVICE_CLASS));
}
@Test
public void getService_MUST_return_the_configured_service_WHEN_default_service_is_specified()
throws Exception {
withDefaultService(
DEFAULT_SERVICE_A_INSTANCE,
() ->
assertThat(serviceLoader.getService(), is(instanceOf(DerivedTestPlessServiceA.class))));
}
@Test
public void getService_MUST_return_the_default_service_WHEN_no_service_is_configured()
throws Exception {
configureService(null);
withDefaultService(
DEFAULT_SERVICE_A_INSTANCE,
() -> assertSame(serviceLoader.getService(), DEFAULT_SERVICE_A_INSTANCE));
}
@Test
public void getService_MUST_return_the_fallback_service_WHEN_default_service_is_removed()
throws Exception {
configureService(null);
withDefaultService(
DEFAULT_SERVICE_A_INSTANCE,
() -> {
withDefaultService(
TestPlessServiceA.class,
null,
() -> {
assertSame(serviceLoader.getService(), FALLBACK_SERVICE_INSTANCE);
});
});
}
@Test
public void getService_MUST_return_a_new_instance_WHEN_in_test_mode() throws Exception {
assertNotSame(serviceLoader.getService(), serviceLoader.getService());
}
@Test
public void getService_MUST_return_the_same_instance_WHEN_in_production_mode() throws Exception {
doReturn(Mode.PROD).when(configurationSource()).runMode();
assertSame(serviceLoader.getService(), serviceLoader.getService());
}
@Test
public void getService_MUST_return_the_configured_instance() throws Exception {
assertThat(serviceLoader.getService(), is(instanceOf(DerivedTestPlessServiceA.class)));
}
@Test(expected = RuntimeException.class)
public void getService_MUST_throw_an_exception_WHEN_the_service_class_does_not_exist()
throws Exception {
configureService("not a valid class name");
serviceLoader.getService();
}