Java tutorial
/* * Copyright 2012-2013 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.springframework.boot.context.initializer; import java.io.IOException; import java.util.logging.LogManager; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.commons.logging.impl.SLF4JLogFactory; import org.junit.After; import org.junit.Before; import org.junit.Rule; import org.junit.Test; import org.junit.rules.TemporaryFolder; import org.springframework.boot.OutputCapture; import org.springframework.boot.SpringApplication; import org.springframework.boot.TestUtils; import org.springframework.boot.logging.LogLevel; import org.springframework.boot.logging.java.JavaLoggingSystem; import org.springframework.context.support.GenericApplicationContext; import static org.hamcrest.Matchers.containsString; import static org.hamcrest.Matchers.not; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertThat; import static org.junit.Assert.assertTrue; /** * Tests for {@link LoggingApplicationContextInitializer}. * * @author Dave Syer * @author Phillip Webb */ public class LoggingApplicationContextInitializerTests { private static final String[] NO_ARGS = {}; @Rule public TemporaryFolder temporaryFolder = new TemporaryFolder(); @Rule public OutputCapture outputCapture = new OutputCapture(); private LoggingApplicationContextInitializer initializer = new LoggingApplicationContextInitializer(); private Log logger = new SLF4JLogFactory().getInstance(getClass()); private SpringApplication springApplication = new SpringApplication(); private GenericApplicationContext context = new GenericApplicationContext(); @Before public void init() throws SecurityException, IOException { LogManager.getLogManager() .readConfiguration(JavaLoggingSystem.class.getResourceAsStream("logging.properties")); this.initializer.initialize(new SpringApplication(), NO_ARGS); } @After public void clear() { System.clearProperty("LOG_FILE"); System.clearProperty("LOG_PATH"); System.clearProperty("PID"); } @Test public void testDefaultConfigLocation() { GenericApplicationContext context = new GenericApplicationContext(); this.initializer.initialize(context); this.logger.info("Hello world"); String output = this.outputCapture.toString().trim(); assertTrue("Wrong output:\n" + output, output.contains("Hello world")); assertFalse("Wrong output:\n" + output, output.contains("???")); } @Test public void testOverrideConfigLocation() { TestUtils.addEnviroment(this.context, "logging.config: classpath:logback-nondefault.xml"); this.initializer.initialize(this.context); this.logger.info("Hello world"); String output = this.outputCapture.toString().trim(); assertTrue("Wrong output:\n" + output, output.contains("Hello world")); assertFalse("Wrong output:\n" + output, output.contains("???")); assertTrue("Wrong output:\n" + output, output.startsWith("/tmp/spring.log")); } @Test public void testOverrideConfigDoesNotExist() throws Exception { TestUtils.addEnviroment(this.context, "logging.config: doesnotexist.xml"); this.initializer.initialize(this.context); // Should not throw } @Test public void testAddLogFileProperty() { TestUtils.addEnviroment(this.context, "logging.config: classpath:logback-nondefault.xml", "logging.file: foo.log"); this.initializer.initialize(this.context); Log logger = LogFactory.getLog(LoggingApplicationContextInitializerTests.class); logger.info("Hello world"); String output = this.outputCapture.toString().trim(); assertTrue("Wrong output:\n" + output, output.startsWith("foo.log")); } @Test public void testAddLogPathProperty() { TestUtils.addEnviroment(this.context, "logging.config: classpath:logback-nondefault.xml", "logging.path: foo/"); this.initializer.initialize(this.context); Log logger = LogFactory.getLog(LoggingApplicationContextInitializerTests.class); logger.info("Hello world"); String output = this.outputCapture.toString().trim(); assertTrue("Wrong output:\n" + output, output.startsWith("foo/spring.log")); } @Test public void parseDebugArg() throws Exception { TestUtils.addEnviroment(this.context, "debug"); this.initializer.initialize(this.context); this.logger.debug("testatdebug"); this.logger.trace("testattrace"); assertThat(this.outputCapture.toString(), containsString("testatdebug")); assertThat(this.outputCapture.toString(), not(containsString("testattrace"))); } @Test public void parseTraceArg() throws Exception { TestUtils.addEnviroment(this.context, "trace"); this.initializer.initialize(this.context); this.logger.debug("testatdebug"); this.logger.trace("testattrace"); assertThat(this.outputCapture.toString(), containsString("testatdebug")); assertThat(this.outputCapture.toString(), containsString("testattrace")); } @Test public void parseArgsDisabled() throws Exception { this.initializer.setParseArgs(false); this.initializer.initialize(this.springApplication, new String[] { "--debug" }); this.initializer.initialize(this.context); this.logger.debug("testatdebug"); assertThat(this.outputCapture.toString(), not(containsString("testatdebug"))); } @Test public void parseArgsDoesntReplace() throws Exception { this.initializer.setSpringBootLogging(LogLevel.ERROR); this.initializer.setParseArgs(false); this.initializer.initialize(this.springApplication, new String[] { "--debug" }); this.initializer.initialize(this.context); this.logger.debug("testatdebug"); assertThat(this.outputCapture.toString(), not(containsString("testatdebug"))); } }