Spring Boot 2和JUnit 5的正确配置

Question

使用Spring Boot 2.0.0.rc2。

@Configuration
@ConditionalOnProperty("launchdarkly.sdkKey")
public class LDClientConfiguration  {

    @Bean
    public LDClientInterface ldClient(LDClientConfigurationProperties props) {
        return new LDClient(props.getSdkKey(), props.getLDConfig());
    }
}

@Component
@ConfigurationProperties(prefix = "launchdarkly")
public class LDClientConfigurationProperties {

    private String sdkKey;
    // more attributes

    public void setSdkKey(String sdkKey) {
        this.sdkKey = sdkKey;
    }
    // more setters

    public LDConfig getLDConfig() {
        LDConfig.Builder builder = new LDConfig.Builder();
        // set builder w/ attributes
        return builder.build();
    }
}

launchdarkly:
    sdkKey: <redacted>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.junit.jupiter</groupId>
        <artifactId>junit-jupiter-api</artifactId>
        <version>${junit-jupiter.version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.junit.jupiter</groupId>
        <artifactId>junit-jupiter-engine</artifactId>
        <version>${junit-jupiter.version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.junit.jupiter</groupId>
        <artifactId>junit-jupiter-params</artifactId>
        <version>${junit-jupiter.version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.junit.platform</groupId>
        <artifactId>junit-platform-engine</artifactId>
        <version>${junit-platform.version}</version>
        <scope>test</scope>
    </dependency>

和junit-platform-surefire-provider配置在maven-surefire-pluginV2.19.1中

我似乎找不出合适的注释来让我的测试类读取src/Test/resources/application-test.yml中的配置。

我读过https://junit.org/junit5/docs/current/user-guide，但似乎仍然不能正确地得到注释。如有任何帮助，我们将不胜感激。

@SpringJUnitConfig(SpringBootContextLoader.class)
public class LDClientConfigurationPropertiesTest {

    @Autowired
    private LDClientConfigurationProperties props;

    @Test
    public void test() {
        LDConfig config = props.getLDConfig();
        assertThat(config, notNullValue());
    }
}

Answer 1

Spring Boot2和JUnit5集成测试的正确注释集是（Kotlin）：

@ExtendWith(SpringExtension::class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@ActiveProfiles("dev") // optional
@TestInstance(TestInstance.Lifecycle.PER_CLASS) // optional

您可以通过字段上的@localserverport注释获得服务正在运行的端口。