[英]Spring Boot - Junit unable to load configuration properties in junit test
I have a consumer.properties
file with the following contents in src/main/resources
, and an accompanying Configuration class that loads and stores the file's contents into class member variables:我在src/main/resources
有一个包含以下内容的consumer.properties
文件,以及一个随附的 Configuration 类,该类将文件的内容加载并存储到类成员变量中:
// consumer.properties
file in src/main/resources
: // src/main/resources
consumer.properties
文件:
com.training.consumer.hostname=myhost
com.training.consumer.username=myusername
com.training.consumer.password=mypassword
//ConsumerConfig.java //ConsumerConfig.java
@Configuration
@PropertySource(
value= {"classpath:consumer.properties"}
)
@ConfigurationProperties(prefix="com.training.consumer")
public class ConsumerConfig {
private String hostname;
private String username;
private String password;
public ConsumerConfig() { }
public String getHostname() {
return hostname;
}
public void setHostname(String hostname) {
this.hostname = hostname;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public String toString() {
return "ConsumerConfig [hostname=" + hostname + ", username=" + username + ", password=" + password + "]";
}
}
I also have a ConfigsService
class that autowires the ConsumerConfig
class to retrieve the individual properties:我还有一个ConfigsService
类,它自动连接ConsumerConfig
类以检索各个属性:
@Component
public class ConfigsService {
@Autowired
ConsumerConfig consumerConfig;
public ConsumerConfig getConsumerConfig() {
return consumerConfig;
}
public void showConfig() {
consumerConfig.toString();
}
public ConsumerConfig getConfig() {
return consumerConfig;
}
}
The properties are loaded up just fine when running the ConfigsService's methods.运行 ConfigsService 的方法时,这些属性加载得很好。 The problem is in the unit tests, where invoking configService.getConfig().getHostname()
returns a null value -- even after having created a src/test/resources
directory, and adding my consumer.properties
file in it:问题出在单元测试中,其中调用configService.getConfig().getHostname()
返回空值——即使在创建了src/test/resources
目录并在其中添加了我的consumer.properties
文件之后:
@TestPropertySource("classpath:consumer.properties")
public class ConfigsServiceTest {
@Mock
ConsumerConfig consumerConfig;
@InjectMocks
ConfigsService configService;
@Before
public void beforeEach() {
MockitoAnnotations.initMocks(this);
}
@Test
public void someTest() {
System.out.println(configService.getConfig().getHostname()); //outputs null here -- wth!
Assert.assertTrue(true);
}
}
you are getting null values because of the mock object.由于模拟对象,您将获得空值。 I will suggest using spring runner with context configuration which will load properties in the config class and create the bean.我会建议使用带有上下文配置的 spring runner,它将加载配置类中的属性并创建 bean。
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {ConsumerConfig.class, ConfigsService.class})
@TestPropertySource(locations = "classpath:consumer.properties")
public class ConfigsServiceTest {
@Autowired
private ConfigsService configsService;
@Test
public void someTest() {
Assert.assertNotNull(configService.getConfig().getHostname());
}
}
该错误可能是因为在 ConfigsServiceTest 类中,您正在确定您的 ConsumerConfig 是一个 Mock,这就是为什么如果您删除它应该可以工作的代码,它不会加载您的配置
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