Log4j2FileXmlTests Class — spring-boot Architecture

Source Code

core/spring-boot/src/test/java/org/springframework/boot/logging/log4j2/Log4j2FileXmlTests.java lines 36–102

class Log4j2FileXmlTests extends Log4j2XmlTests {

	@TempDir
	@SuppressWarnings("NullAway.Init")
	File temp;

	@Override
	@AfterEach
	void stopConfiguration() {
		super.stopConfiguration();
		for (LoggingSystemProperty property : LoggingSystemProperty.values()) {
			System.getProperties().remove(property.getEnvironmentVariableName());
		}
	}

	@Test
	void whenLogExceptionConversionWordIsNotConfiguredThenFileAppenderUsesDefault() {
		assertThat(fileAppenderPattern()).contains("%xwEx");
	}

	@Test
	void whenLogExceptionConversionWordIsSetThenFileAppenderUsesIt() {
		withSystemProperty(LoggingSystemProperty.EXCEPTION_CONVERSION_WORD.getEnvironmentVariableName(), "custom",
				() -> assertThat(fileAppenderPattern()).contains("custom"));
	}

	@Test
	void whenLogLevelPatternIsNotConfiguredThenFileAppenderUsesDefault() {
		assertThat(fileAppenderPattern()).contains("%5p");
	}

	@Test
	void whenLogLevelPatternIsSetThenFileAppenderUsesIt() {
		withSystemProperty(LoggingSystemProperty.LEVEL_PATTERN.getEnvironmentVariableName(), "custom",
				() -> assertThat(fileAppenderPattern()).contains("custom"));
	}

	@Test
	void whenLogLDateformatPatternIsNotConfiguredThenFileAppenderUsesDefault() {
		assertThat(fileAppenderPattern()).contains("yyyy-MM-dd'T'HH:mm:ss.SSSXXX");
	}

	@Test
	void whenLogDateformatPatternIsSetThenFileAppenderUsesIt() {
		withSystemProperty(LoggingSystemProperty.DATEFORMAT_PATTERN.getEnvironmentVariableName(), "dd-MM-yyyy",
				() -> assertThat(fileAppenderPattern()).contains("dd-MM-yyyy"));
	}

	@Override
	protected String getConfigFileName() {
		return "log4j2-file.xml";
	}

	@Override
	protected void prepareConfiguration() {
		System.setProperty(LoggingSystemProperty.LOG_FILE.getEnvironmentVariableName(),
				new File(this.temp, "test.log").getAbsolutePath());
		super.prepareConfiguration();
	}

	private String fileAppenderPattern() {
		prepareConfiguration();
		assertThat(this.configuration).isNotNull();
		return ((PatternLayout) this.configuration.getAppender("File").getLayout()).getConversionPattern();
	}

}