I am using JUNIT4 + Spring and wrote a test case. I wired in a JDBC Template and did manual set on it. But that turns out be null and the test is throwing null pointer exception when i use that injected variable. What's wrong here?
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration(locations = { "classpath:applicationContextTest.xml" })
#TransactionConfiguration(defaultRollback = true)
#Configurable
public class WriterTest {
private JdbcTemplate utilityJdbcTemplate;
public void setUtilityJdbcTemplate(JdbcTemplate utilityJdbcTemplate) {
this.utilityJdbcTemplate = utilityJdbcTemplate;
}
#Test
#Transactional
#Rollback(true)
public void testHappyPath() {
Assert.assertNotNull(utilityJdbcTemplate);
}
}
Here the test fails because utilityJdbcTemplate being null. why?
"gotta autowire":
#Autowired
private JdbcTemplate utilityJdbcTemplate;
Related
I have a bit of a confusing error in my test scenario.
We want to refactor an Application that is not tested at all. To ensure that we have the same outcame after refactoring I'll write some integration tests for one Controller class.
#RestController
#RequestMapping("/rfq")
public class RfqController {
#Autowired
private RfqRepository rfqRepo;
#Autowired
private RfqDao rfqDao;
...
#PostMapping("/get")
public #ResponseBody BuyerRfqView getRFQ(#RequestBody SingleIdBody body) {
int id = body.getId();
Optional<Rfq> rfq = rfqRepo.getById(id);
...
}
}
In that case I want to test with testcontainers and spring-boot-test everything worked well, containers are up and running and the application starts so far. But the problem is that at runtime the spring-boot-test doesn't Autowire rfqRepo in the class under test. In the Testclass, every single dependency is in the ComponentScan or EntityScan and the repositories are also injected. I have no clue why this is not working. when the test is running I get a Nullpointer Exception by rfqRepo ...
here is the Test class:
#SpringBootTest(classes = RfqController.class, webEnvironment =
SpringBootTest.WebEnvironment.RANDOM_PORT)
#ComponentScan({...})
#EnableJpaRepositories({...})
#EntityScan({...})
#EnableAutoConfiguration
#ActiveProfiles("local")
#Testcontainers
#AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.NONE)
class RfqControllerTest {
#Container
private static OracleContainer database = new OracleContainer(
"oracleinanutshell/oracle-xe-11g:latest")
.withExposedPorts(1521, 5500)
.withPassword("...");
#InjectMocks
RfqController rfqController;
#DynamicPropertySource
static void databaseProperties(DynamicPropertyRegistry registry) {
registry.add("spring.datasource.url", database::getJdbcUrl);
registry.add("spring.datasource.username", database::getUsername);
registry.add("spring.datasource.password", database::getPassword);
}
#BeforeEach
void setUp() {
MockitoAnnotations.openMocks(this);
ScriptUtils.runInitScript(new JdbcDatabaseDelegate(database, ""), "ddl.sql");
}
#Test
void testGetRFQ() {
BuyerRfqView result = rfqController.getRFQ(new SingleIdBody(176501));
Assertions.assertEquals(new BuyerRfqView(), result);
}
}
In the SpringBootTest annotation you are only using RfqController. That's the only class then that is available during test.
#SpringBootTest(classes = RfqController.class, webEnvironment =SpringBootTest.WebEnvironment.RANDOM_PORT)
So you have to add all classes that are needed for your tests.
I have an aspect class as below -
public class TestAspect {
#AfterThrowing(pointcut = "execution(* *(..)) ", throwing = "testException")
public void afterThrowAdvice(TestException testException) throws Exception {
}
}
Now anytime any class throws TestException, TestAspect's afterThrowAdvice method is getting called. From Unit tests as well without using any spring configuration xmls, running as a plain junit test. How do I mock to not do anything when that method is called? I tried in my unit test the below but it won't work. Rightly so because the aspect is not autowired into the classes I am testing. Any suggestions? -
#Mock
private TestAspect testAspect
doNothing.when(testAspect).afterThrowAdvice(any(TestException.class));
One way to achieve this is using #Profile option .
Following profile configuration will make sure the aspect bean is only available with the profile is not test
#Component
#Aspect
#Profile("!test")
public class TestAspect {
#AfterThrowing(pointcut = "execution(* *(..)) ", throwing = "testException")
public void afterThrowAdvice(TestException testException) throws Exception {
...
}
}
and following Junit testcase runs the the tests with profile as test and no aspect bean is created here
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration(classes = TestExConfig.class)
#ActiveProfiles("test")
public class TestService{
#Autowired
ServiceWithException service;
#Test(expected = TestException.class)
public void testExceptionMethod() throws TestException {
service.testMethod();
}
}
Hope this helps
I have one service class that I want to mock but while running the test I am Getting Caused by: java.lang.IllegalStateException: Duplicate mock definition [MockDefinition#482ba4b1 name = '', typeToMock = com.service.ThirdPartyService, extraInterfaces = set[[empty]], answer = RETURNS_DEFAULTS, serializable = false, reset = AFTER]
I have tried to create mock service using #MockBean at class level, field level, and used #Qualifier as well to resolve the issue
#Service
public class ThirdPartyService{
.......................
public String decrypt(String encryptedText) {
//third party SDK I am using
return Service.decrypt.apply(encryptedText);
}
.........
..............
}
#ComponentScan("com")
#PropertySource({"classpath:/api.properties", "classpath:/common.properties"})
#SpringBootConfiguration
#RunWith(SpringRunner.class)
#SpringBootTest(classes = {Application.class}, webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT)
#Transactional
public class TestControllerTest extends IntegrationTest {
#MockBean
ThirdPartyService thirdPartyService;
#Before
public void initMocks(){
MockitoAnnotations.initMocks(this);
}
#Test
public void test() throws Exception {
when(ts.decrypt("encryptedText")).thenReturn("decryptedText")
Request req = Request.builder().name("name123").build();
//written performPost method in some other class
ResultActions action = performPost("/test", req);
action.andExpect(status().isOk());
}
}
public class IntegrationTest {
protected final Gson mapper = new Gson();
private MockMvc mvc;
#Autowired
private WebApplicationContext context;
public ObjectMapper objectMapper = new ObjectMapper();
#Before
public void setup() {
this.mvc = MockMvcBuilders.webAppContextSetup(context).apply(springSecurity()).build();
}}
When I am calling Thirdparty service decrypt method then it should return me decryptedText as a string. But getting duplicate mock definition error
I had the same issue.
Cause of this were test configuration file which was put somewhere else and it contained the mocked bean.
I have solved this by using #Autowired instead of #MockBean as this will result in autowiring the already mocked bean.
In my case the problem appeared after another dependency update and the reason was in the #SpringBootTest annotation referencing the same class twice:
#SpringBootTest(classes = {MyApplication.class, ApiControllerIT.class})
class ApiControllerIT extends IntegrationTestConfigurer {
// ...
}
#SpringBootTest(classes = {MyApplication.class, TestRestTemplateConfiguration.class})
public class IntegrationTestConfigurer {
// ...
}
I fixed it by removing #SpringBootTest annotation from the child class (ApiControllerIT).
In my case it was incorrect test class name that doesn't end with 'Test'.
If you have nested test classes try this:
#NestedTestConfiguration(OVERRIDE)
From Spring release notes: https://github.com/spring-projects/spring-framework/wiki/Upgrading-to-Spring-Framework-5.x#upgrading-to-version-53
I have a JUnit test where I am using Spring Test DBUnit and Spring declarative transaction management. If I tag a test method with #Transactional (which will utilize the #BeforeTransactional to verify database state) and also with #DatabaseSetup (to set the database state to what I want), which will have precedence? Will the database first be set up and then #BeforeTransactional will check it, or will the check happen after setup? Here's some code:
#RunWith(SpringJUnit4ClassRunner.class)
#SpringApplicationConfiguration(classes = PersonServiceConfiguration.class)
#TestExecutionListeners({ DependencyInjectionTestExecutionListener.class,
DirtiesContextTestExecutionListener.class,
TransactionalTestExecutionListener.class })
public class PersonServiceTransactionalIT {
#Autowired
private PersonManagementService pms;
#BeforeTransaction
public void beforeTransaction() {
checkDatabaseState();
}
#AfterTransaction
public void afterTransaction() {
checkDatabaseState();
}
#Test
#Transactional
#DatabaseSetup("/test_data_start.xml")
public void testCreateValid() {
Person expected = new Person(6l, "six", "created");
Person actual = pms.save(expected);
assertEquals("Person objects not equal", expected, actual);
}
private void checkDatabaseState() {
List<Person> pl = pms.findAll();
assertEquals("Size of database not as expected", 5, pl.size());
}
}
I have a Spring 3.1 MVC + Hibernate 3.6 project with its junit4 test suit. My problem is that there is no transaction starting in my test cases, even thought I added a #Transactional.
My test case calls a controller and a dao. In the controller, a transaction is started anyway, so it does not complain. In the dao, I added a #Transactional(propagation = Propagation.MANDATORY) to be sure it will take the test's transaction. And currently it raises an IllegalTransactionStateException, which I guess it means there is no current transaction.
I tried to create programmaticaly an transaction and it does work, which means the AOP proxy to get the dao service is not the cause of the problem. However I want to create a transaction with the #Transactional annotation.
here's my dao:
// ...imports...
#Repository("taskDao")
#Transactional(propagation = Propagation.MANDATORY)
public class TaskHome implements TaskDao {
private static final Log log = LogFactory.getLog(TaskHome.class);
private SessionFactory sessionFactory;
#Autowired
public TaskHome(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
public Task findById(int id) {
log.debug("getting Task instance with id: " + id);
try {
Task instance = (Task) this.sessionFactory.getCurrentSession().get(
Task.class, id); // exception raised here!
if (instance == null) {
log.debug("get successful, no instance found");
} else {
log.debug("get successful, instance found");
}
return instance;
} catch (RuntimeException re) {
log.error("get failed", re);
throw re;
}
}
...
}
Here's my test case:
// ...imports...
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration({ "/test-config.xml", "/applicationContext.xml" })
#TransactionConfiguration(defaultRollback = true)
#Transactional
public class TestTaskController {
private static ClassPathXmlApplicationContext context;
private static TaskDao taskDao;
#BeforeClass
public static void initHibernate() throws Exception {
context = new ClassPathXmlApplicationContext("applicationContext.xml");
taskDao = context.getBean("taskDao", TaskDao.class);
}
#Test
public void testOnSubmit() {
// expects an existing default transaction here
Task task = taskDao.findById(1); // fails already here
// ... calls the controller and does some tests.
}
}
I searched in all Spring's documentation and googled it in any way I could imagine, but I don't see why the transaction is not started.
Any help is very welcome.
When using #RunWith(SpringJUnit4ClassRunner.class) you should obtain beans from the application context created by SpringJUnit4ClassRunner rather than from your own one.
In your case things go wrong because #Transactional on the unit test creates a transaction in the application context managed by SpringJUnit4ClassRunner, but you call methods on the beans obtained from the application context created manually.
So, remove your #BeforeClass method and obtain TaskDao via autowiring:
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration({ "/test-config.xml", "/applicationContext.xml" })
#TransactionConfiguration(defaultRollback = true)
#Transactional
public class TestTaskController {
#Autowired
private TaskDao taskDao;
...
}
See also:
9.3.5 Spring TestContext Framework