I am using maven project, with spring jpa.
how to test DAO methods in test cases.
And how to get spring context into the test cases
Thanks in advance.
You can use the SpringJUnit4ClassRunner JUnit runner to setup spring in JUnit tests.
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration(locations={"/applicationContext-1.xml", "/test-config.xml"})
#TestExecutionListeners({DependencyInjectionTestExecutionListener.class})
public class MyTest {
#Autowired
private MySpringBean bean;
}
With the DependencyInjectionTestExecutionListener you can inject spring beans in your test classes.
Have a look at the very extensive Spring Testing documentation.
Take help from below code to inject application context
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration(classes = TestConfig.clas)
public class ControllerIntegrationTests {
#Autowired
private ApplicationContext applicationContext;
}
If you are using Java based configuration then take help from the above code, if xml is being used as configuring app then replace classes with locations example as below
#ContextConfiguration(classes = TestConfig.class)
or
#ContextConfiguration(locations = "/test-context.xml")
Related
I use spring boot 3
Main spring boot class
#EnableTransactionManagement
#SpringBootApplication
#Slf4j
public class FlexApplication{
private final ApplicationParameterManager appParamManager;
public FlexApplication(ApplicationParameterManager appParamManager) {
this.appParamManager = appParamManager;
}
#PostConstruct
public void init(){
}
....
}
#Service
#Slf4j
public class ApplicationParameterManager{
....
}
Basic test
#AutoConfigureTestDatabase(replace= AutoConfigureTestDatabase.Replace.NONE)
#DataJpaTest
public class ListUserRepositoryTest {
#Autowired
private ListUserRepository repository;
#Test
public void getListUserByUserType(){
String typeUser = "CETEST";
Pageable page = Pageable.ofSize(10);
Page<ListUser> pageListUser = repository.findAllByTypeUser(typeUser, page);
assertThat(pageListUser.getContent().size() > 5 ).isTrue();
}
}
Otherwise this test, application run well
I get this error
Parameter 0 of constructor in com.acme.FlexApplication required a bean
of type 'com.acme.parameter.ApplicationParameterManager' that could
not be found.
I think it is not related to version of Spring Boot.
As you're using #DataJpaTest , your bean is not created
Spring Docs:
#DataJpaTest can be used if you want to test JPA applications. By
default it will configure an in-memory embedded database, scan for
#Entity classes and configure Spring Data JPA repositories. Regular
#Component beans will not be loaded into the ApplicationContext.
Solution would be to use #SpringBootTest instead of #DataJpaTest if your test is not really a JPA test.
Also, still using #DataJpaTest you could add #Import(ApplicationParameterManager.class) to your test class
When using #DataJpaTest, you are not creating the whole spring context as when you run the application normally but you only create the beans responsible for data access layer.
In order to run your tests properly, you need to provide a mocked bean of type ApplicationParameterManager.
The easiest way to do it is by utilizing #MockBean annotation.
So, to make your tests work, edit the test in the following way.
#AutoConfigureTestDatabase(replace= AutoConfigureTestDatabase.Replace.NONE)
#DataJpaTest
public class ListUserRepositoryTest {
#MockBean
private ApplicationParameterManager applicationParameterManager;
#Autowired
private ListUserRepository repository;
#Test
public void getListUserByUserType(){
String typeUser = "CETEST";
Pageable page = Pageable.ofSize(10);
Page<ListUser> pageListUser = repository.findAllByTypeUser(typeUser, page);
assertThat(pageListUser.getContent().size() > 5 ).isTrue();
}
}
That way, the spring context will include a mocked bean of your required dependency.
Take a look at #MockBean java doc for more information. https://docs.spring.io/spring-boot/docs/current/api/org/springframework/boot/test/mock/mockito/MockBean.html
If you prefer to run the whole spring context in order to perform full integration tests, take a look at #SpringBootTest annotation.
#DataJpaTest should be used when you want to test data access layer in isolation.
I am using Junit5 to write unit test cases in java. I have few values that I have added in application.yaml but I am not able to retrieve them in my test file eg. ownerMasterList value is coming as null but it is present in application.yaml
#ExtendWith(MockitoExtension.class)
public class OwnerServiceTest {
#Value("${owner.master-list}")
private ownerMasterList;
#Test
void findAllOwners(){
---test detail
}
}
Using ConfigFileApplicationContextInitializer alone does not provide support for #Value("${…}") injection. Its only job is to ensure that application.properties files are loaded into Spring’s Environment. For #Value support, you need to either additionally configure a PropertySourcesPlaceholderConfigurer or use #SpringBootTest, which auto-configures one for you.
From doc
#RunWith(SpringRunner.class)
#ContextConfiguration(initializers = ConfigFileApplicationContextInitializer.class)
public class OwnerServiceTest {...}
Please try providing property source
By reading your code, it seems that you are using JUnit5 (#ExtendWith(MockitoExtension.class)).
The correct extension to use to trigger the launch of a Spring application context is (#ExtendWith(SpringExtension.class)). If you are using Spring Boot, you can use the #SpringBootTest annotation which is itself annotated with #ExtendWith(SpringExtension.class).
One point to note though: you should not wire an application context when unit testing your code. You should rather test your class in isolation and inject the needed property (here ownerMasterList) through the constructor (see #BeforeEach JUnit 5 annotation):
class OwnerServiceTest {
private OwnerService ownerService;
#BeforeEach
void setUp() {
this.ownerService = new OwnerService(new ArrayList<>(...));
}
}
Am developing MicroServices in springBoot. Am writing unit test for Service and DAO layer. When I use #SpringBootTest it starting application on build. But It should not start application
when I run unit test. I used #RunWith(SpringRunner.class), But am unable to #Autowired class instance in junit class. How can I configure junit test class that should not start application and how to #Autowired class instance in junit class.
Use MockitoJUnitRunner for JUnit5 testing if you don't want to start complete application.
Any Service, Repository and Interface can be mocked by #Mock annotation.
#InjectMocks is used over the object of Class that needs to be tested.
Here's an example to this.
#RunWith(MockitoJUnitRunner.class)
#SpringBootTest
public class AServiceTest {
#InjectMocks
AService aService;
#Mock
ARepository aRepository;
#Mock
UserService userService;
#Before
public void setUp() {
// MockitoAnnotations.initMocks(this);
// anything needs to be done before each test.
}
#Test
public void loginTest() {
Mockito.when(aRepository.findByUsername(ArgumentMatchers.anyString())).thenReturn(Optional.empty());
String result = aService.login("test");
assertEquals("false", result);
}
With Spring Boot you can start a sliced version of your application for your tests. This will create a Spring Context that only contains a subset of your beans that are relevant e.g. only for your web layer (controllers, filters, converters, etc.): #WebMvcTest.
There is a similar annotation that can help you test your DAOs as it only populates JPA and database relevant beans (e.g. EntitiyManager, Datasource, etc.): #DataJpaTest.
If you want to autowire a bean that is not part of the Spring Test Context that gets created by the annotatiosn above, you can use a #TestConfiguration to manually add any beans you like to the test context
#WebMvcTest(PublicController.class)
class PublicControllerTest {
#Autowired
private MockMvc mockMvc;
#TestConfiguration
static class TestConfig {
#Bean
public EntityManager entityManager() {
return mock(EntityManager.class);
}
#Bean
public MeterRegistry meterRegistry() {
return new SimpleMeterRegistry();
}
}
}
Depending your test setup, if you don't want to autowire a mock but the "real thing", You could simply annotate your test class to include exactly the classes you need (plus their transitive dependencies if necessary)
For example :
#SpringJUnitConfig({ SimpleMeterRegistry.class })
or
#SpringJUnitConfig
#Import({ SimpleMeterRegistry.class })
or
#SpringJUnitConfig
#ContextConfiguration(classes = { SimpleMeterRegistry.class })
See working JUnit5 based samples in here Spring Boot Web Data JDBC allin .
I try to perform some Cucumber tests of a Spring boot application.
It seems like Spring Boot is not started before tests are running.
What am i missing?
https://bitbucket.org/oakstair/spring-boot-cucumber-example
My Cucumber repo still runs without doing all the above steps:
https://github.com/BarathArivazhagan/Cucumber-spring-integration
Docs : https://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-testing.html
To add more:
#SpringBootTest takes care of loading the application context in that case #ContextConfiguration is reductant.
Spring test automatically provides a bean of TestRestTemplate which can be autowired but still it should work with RestTemplate also.
It still runs without RANDOM_PORT but RANDOM port can be also used in conjunction for testing.
Let's say you have a feature file, feature1, and glueCode in org.xyz.feature1
#RunWith(Cucumber.class)
#CucumberOptions(
plugin = {"pretty"},
features = "src/test/java/resources/feature/feature1",
glue = {"org.xyz.feature1"})
public class CucumberTest {
}
#RunWith(SpringRunner.class)
#SpringBootTest(classes = {Application.class},
webEnvironment = WebEnvironment.RANDOM_PORT)
#ContextConfiguration
#Ignore
#Transactional
public class FeatureTest extends CucumberTest {
#LocalServerPort
int randomServerPort;
#Given("........")
public void test_1 {
}
}
I found the problem and has updated the repo.
I did the following to get it working:
Added RANDOM_PORT to #SpringBootTest
Added #ContextConfiguration
Switched from RestTemplate to TestRestTemplate
I have my configuration in application.yml file in the root of classpath (src/main/resources/). The configuration gets loaded fine when I start the application normally. However in my test the application.yml file gets not loaded at all.
The header of my test looks as follow:
#RunWith(SpringJUnit4ClassRunner.class)
#WebAppConfiguration
#ContextConfiguration(classes = Configuration.class)
#org.junit.Ignore
public class ApplicationIntegrationTest {
#Inject
private WebApplicationContext wac;
private MockMvc mockMvc;
#Before
public void setup() {
this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac).build();
}
...
The configuration class:
#EnableAutoConfiguration
#ComponentScan("c.e.t.s.web, c.e.t.s.service")
public class Configuration extends WebMvcConfigurerAdapter {
When I debug the application I see that the yml files get loaded in ConfigFileApplicationListener, in the test however the ConfigFileApplicationListener gets not called.
There is a whole chapter in the Spring Boot Reference guide regarding testing. This section explains how to do a basic test for a Spring Boot application.
In short when using Spring Boot and you want to do a test you need to use the # SpringApplicationConfiguration annotation instead of the #ContextConfiguration annotation. The #SpringApplicationConfiguration is a specialized #ContextConfiguration extension which registers/bootstraps some of the Spring Boot magic for test cases as well.
There is a good integration between StringBoot, jUnit and YAML.
#RunWith(SpringJUnit4ClassRunner.class)
#SpringApplicationConfiguration(MainBootApplication.class)
public class MyJUnitTests {
...
}
#Configuration
#EnableConfigurationProperties
#ConfigurationProperties(prefix = "section1")
public class BeanWithPropertiesFromYML {
...
}
For more details please check my comment here: https://stackoverflow.com/a/37270778/3634283