测试时在Spring Boot中设置日志级别

package cn.tuyucheng.taketoday.testloglevel;

@RestController
public class TestLogLevelController {
    private static final Logger LOG = LoggerFactory.getLogger(TestLogLevelController.class);

    @Autowired
    private OtherComponent otherComponent;

    @GetMapping("/testLogLevel")
    public String testLogLevel() {
        LOG.trace("This is a TRACE log");
        LOG.debug("This is a DEBUG log");
        LOG.info("This is an INFO log");
        LOG.error("This is an ERROR log");

        otherComponent.processData();
        return "Added some log output to console...";
    }
}

package cn.tuyucheng.taketoday.component;

public class OtherComponent {
    private static final Logger LOG = LoggerFactory.getLogger(OtherComponent.class);

    public void processData() {
        LOG.trace("This is a TRACE log from another package");
        LOG.debug("This is a DEBUG log from another package");
        LOG.info("This is an INFO log from another package");
        LOG.error("This is an ERROR log from another package");
    }
}

@DirtiesContext(classMode = AFTER_EACH_TEST_METHOD)
@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT, classes = TestLogLevelApplication.class)
@EnableAutoConfiguration(exclude = SecurityAutoConfiguration.class)
@ActiveProfiles("logback-test")
public class LogbackTestLogLevelIntegrationTest {

    @Autowired
    private TestRestTemplate restTemplate;

    @Rule
    public OutputCaptureRule outputCapture = new OutputCaptureRule();

    private String baseUrl = "/testLogLevel";

    @Test
    public void givenErrorRootLevelAndDebugLevelForOurPackage_whenCall_thenPrintDebugLogsForOurPackage() {
        ResponseEntity<String> response = restTemplate.getForEntity(baseUrl, String.class);

        assertThat(response.getStatusCode().value()).isEqualTo(200);
        assertThatOutputContainsLogForOurPackage("DEBUG");
    }

    @Test
    public void givenErrorRootLevelAndDebugLevelForOurPackage_whenCall_thenNoDebugLogsForOtherPackages() {
        ResponseEntity<String> response = restTemplate.getForEntity(baseUrl, String.class);

        assertThat(response.getStatusCode().value()).isEqualTo(200);
        assertThatOutputDoesntContainLogForOtherPackages("DEBUG");
    }

    @Test
    public void givenErrorRootLevelAndDebugLevelForOurPackage_whenCall_thenPrintErrorLogs() {
        ResponseEntity<String> response = restTemplate.getForEntity(baseUrl, String.class);

        assertThat(response.getStatusCode().value()).isEqualTo(200);
        assertThatOutputContainsLogForOurPackage("ERROR");
        assertThatOutputContainsLogForOtherPackages("ERROR");
    }

    private void assertThatOutputContainsLogForOurPackage(String level) {
        assertThat(outputCapture.toString()).containsPattern("TestLogLevelController." + level + ".");
    }

    private void assertThatOutputDoesntContainLogForOtherPackages(String level) {
        assertThat(outputCapture.toString().replaceAll("(?m)^.TestLogLevelController.$", "")).doesNotContain(level);
    }

    private void assertThatOutputContainsLogForOtherPackages(String level) {
        assertThat(outputCapture.toString().replaceAll("(?m)^.TestLogLevelController.$", "")).contains(level);
    }
}

@RunWith(SpringRunner.class)
@DirtiesContext(classMode = AFTER_EACH_TEST_METHOD)
@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT, classes = TestLogLevelApplication.class)
@EnableAutoConfiguration(exclude = SecurityAutoConfiguration.class)
@ActiveProfiles("logging-test")
public class TestLogLevelWithProfileIntegrationTest {
    // ...
}