11d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert/* 27dd252788645e940eada959bdde927426e2531c9Paul Duffin * Copyright (C) 2008 The Guava Authors 31d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 41d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Licensed under the Apache License, Version 2.0 (the "License"); 51d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * you may not use this file except in compliance with the License. 61d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * You may obtain a copy of the License at 71d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 81d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * http://www.apache.org/licenses/LICENSE-2.0 91d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 101d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Unless required by applicable law or agreed to in writing, software 111d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * distributed under the License is distributed on an "AS IS" BASIS, 121d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 131d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * See the License for the specific language governing permissions and 141d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * limitations under the License. 151d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 161d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 171d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertpackage com.google.common.testing; 181d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 191d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport junit.framework.TestCase; 201d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 211d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport java.util.logging.Level; 221d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport java.util.logging.LogRecord; 231d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport java.util.logging.Logger; 241d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 251d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert/** 261d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Unit test for {@link TestLogHandler}. 271d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 281d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @author kevinb 291d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 301d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertpublic class TestLogHandlerTest extends TestCase { 311d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 321d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert private TestLogHandler handler; 331d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert private TearDownStack stack = new TearDownStack(); 341d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 351d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override protected void setUp() throws Exception { 361d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert super.setUp(); 371d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 381d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert handler = new TestLogHandler(); 391d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 401d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // You could also apply it higher up the Logger hierarchy than this 411d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert ExampleClassUnderTest.logger.addHandler(handler); 421d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 431d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert ExampleClassUnderTest.logger.setUseParentHandlers(false); // optional 441d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 451d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert stack.addTearDown(new TearDown() { 461d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 471d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void tearDown() throws Exception { 481d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert ExampleClassUnderTest.logger.setUseParentHandlers(true); 491d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert ExampleClassUnderTest.logger.removeHandler(handler); 501d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 511d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }); 521d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 531d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 541d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void test() throws Exception { 551d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertTrue(handler.getStoredLogRecords().isEmpty()); 561d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert ExampleClassUnderTest.foo(); 570888a09821a98ac0680fad765217302858e70fa4Paul Duffin LogRecord record = handler.getStoredLogRecords().get(0); 581d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertEquals(Level.INFO, record.getLevel()); 591d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertEquals("message", record.getMessage()); 601d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertSame(EXCEPTION, record.getThrown()); 611d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 621d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 631d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testConcurrentModification() throws Exception { 641d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Tests for the absence of a bug where logging while iterating over the 651d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // stored log records causes a ConcurrentModificationException 661d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertTrue(handler.getStoredLogRecords().isEmpty()); 671d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert ExampleClassUnderTest.foo(); 681d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert ExampleClassUnderTest.foo(); 690888a09821a98ac0680fad765217302858e70fa4Paul Duffin for (LogRecord unused : handler.getStoredLogRecords()) { 701d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert ExampleClassUnderTest.foo(); 711d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 721d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 731d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 741d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public final void runBare() throws Throwable { 751d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 761d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert setUp(); 771d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert runTest(); 781d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } finally { 791d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert tearDown(); 801d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 811d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 821d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 831d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override protected void tearDown() { 841d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert stack.runTearDown(); 851d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 861d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 871d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert static final Exception EXCEPTION = new Exception(); 881d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 891d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert static class ExampleClassUnderTest { 901d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert static final Logger logger 911d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert = Logger.getLogger(ExampleClassUnderTest.class.getName()); 921d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 931d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert static void foo() { 941d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert logger.log(Level.INFO, "message", EXCEPTION); 951d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 961d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 971d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert} 98