11d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert/* 21d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Copyright (C) 2007 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.base; 181d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 191d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport static com.google.common.base.Throwables.getStackTraceAsString; 201d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport static java.util.Arrays.asList; 211d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport static java.util.regex.Pattern.quote; 221d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 231d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport com.google.common.collect.Iterables; 241d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport com.google.common.testing.NullPointerTester; 251d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 261d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport junit.framework.TestCase; 271d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 281d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport java.io.FileNotFoundException; 291d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport java.util.List; 301d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 311d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert/** 321d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Unit test for {@link Throwables}. 331d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 341d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @author Kevin Bourrillion 351d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 361d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert@SuppressWarnings("serial") // this warning is silly for exceptions in tests 371d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertpublic class ThrowablesTest extends TestCase { 381d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagateIfPossible_NoneDeclared_NoneThrown() { 391d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 401d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void noneDeclared() { 411d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 421d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatDoesntThrowAnything(); 431d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 441d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfPossible(t); 451d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeChainingException(t); 461d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 471d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 481d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 491d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 501d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect no exception to be thrown 511d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.noneDeclared(); 521d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 531d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 541d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagateIfPossible_NoneDeclared_UncheckedThrown() { 551d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 561d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void noneDeclared() { 571d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 581d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatThrowsUnchecked(); 591d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 601d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfPossible(t); 611d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeChainingException(t); 621d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 631d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 641d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 651d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 661d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect the unchecked exception to propagate as-is 671d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 681d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.noneDeclared(); 691d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail(); 701d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (SomeUncheckedException expected) { 711d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 721d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 731d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 741d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagateIfPossible_NoneDeclared_UndeclaredThrown() { 751d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 761d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void noneDeclared() { 771d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 781d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatThrowsUndeclaredChecked(); 791d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 801d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfPossible(t); 811d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeChainingException(t); 821d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 831d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 841d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 851d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 861d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect the undeclared exception to have been chained inside another 871d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 881d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.noneDeclared(); 891d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail(); 901d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (SomeChainingException expected) { 911d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 921d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 931d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 941d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagateIfPossible_OneDeclared_NoneThrown() 951d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throws SomeCheckedException { 961d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 971d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void oneDeclared() throws SomeCheckedException { 981d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 991d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatDoesntThrowAnything(); 1001d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 1011d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // yes, this block is never reached, but for purposes of illustration 1021d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // we're keeping it the same in each test 1031d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfPossible(t, SomeCheckedException.class); 1041d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeChainingException(t); 1051d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1061d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1071d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 1081d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1091d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect no exception to be thrown 1101d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.oneDeclared(); 1111d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1121d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1131d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagateIfPossible_OneDeclared_UncheckedThrown() 1141d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throws SomeCheckedException { 1151d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 1161d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void oneDeclared() throws SomeCheckedException { 1171d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 1181d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatThrowsUnchecked(); 1191d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 1201d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfPossible(t, SomeCheckedException.class); 1211d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeChainingException(t); 1221d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1231d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1241d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 1251d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1261d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect the unchecked exception to propagate as-is 1271d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 1281d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.oneDeclared(); 1291d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail(); 1301d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (SomeUncheckedException expected) { 1311d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1321d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1331d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1341d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagateIfPossible_OneDeclared_CheckedThrown() { 1351d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 1361d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void oneDeclared() throws SomeCheckedException { 1371d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 1381d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatThrowsChecked(); 1391d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 1401d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfPossible(t, SomeCheckedException.class); 1411d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeChainingException(t); 1421d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1431d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1441d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 1451d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1461d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect the checked exception to propagate as-is 1471d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 1481d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.oneDeclared(); 1491d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail(); 1501d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (SomeCheckedException expected) { 1511d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1521d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1531d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1541d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagateIfPossible_OneDeclared_UndeclaredThrown() 1551d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throws SomeCheckedException { 1561d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 1571d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void oneDeclared() throws SomeCheckedException { 1581d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 1591d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatThrowsUndeclaredChecked(); 1601d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 1611d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfPossible(t, SomeCheckedException.class); 1621d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeChainingException(t); 1631d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1641d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1651d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 1661d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1671d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect the undeclared exception to have been chained inside another 1681d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 1691d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.oneDeclared(); 1701d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail(); 1711d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (SomeChainingException expected) { 1721d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1731d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1741d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1751d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagateIfPossible_TwoDeclared_NoneThrown() 1761d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throws SomeCheckedException, SomeOtherCheckedException { 1771d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 1781d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void twoDeclared() throws SomeCheckedException, 1791d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert SomeOtherCheckedException { 1801d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 1811d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatDoesntThrowAnything(); 1821d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 1831d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfPossible(t, SomeCheckedException.class, 1841d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert SomeOtherCheckedException.class); 1851d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeChainingException(t); 1861d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1871d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1881d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 1891d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1901d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect no exception to be thrown 1911d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.twoDeclared(); 1921d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 1931d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 1941d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagateIfPossible_TwoDeclared_UncheckedThrown() 1951d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throws SomeCheckedException, SomeOtherCheckedException { 1961d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 1971d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void twoDeclared() throws SomeCheckedException, 1981d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert SomeOtherCheckedException { 1991d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 2001d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatThrowsUnchecked(); 2011d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 2021d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfPossible(t, SomeCheckedException.class, 2031d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert SomeOtherCheckedException.class); 2041d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeChainingException(t); 2051d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2061d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2071d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 2081d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 2091d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect the unchecked exception to propagate as-is 2101d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 2111d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.twoDeclared(); 2121d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail(); 2131d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (SomeUncheckedException expected) { 2141d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2151d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2161d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 2171d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagateIfPossible_TwoDeclared_CheckedThrown() 2181d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throws SomeOtherCheckedException { 2191d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 2201d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void twoDeclared() throws SomeCheckedException, 2211d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert SomeOtherCheckedException { 2221d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 2231d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatThrowsChecked(); 2241d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 2251d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfPossible(t, SomeCheckedException.class, 2261d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert SomeOtherCheckedException.class); 2271d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeChainingException(t); 2281d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2291d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2301d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 2311d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 2321d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect the checked exception to propagate as-is 2331d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 2341d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.twoDeclared(); 2351d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail(); 2361d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (SomeCheckedException expected) { 2371d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2381d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2391d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 2401d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagateIfPossible_TwoDeclared_OtherCheckedThrown() 2411d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throws SomeCheckedException { 2421d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 2431d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void twoDeclared() throws SomeCheckedException, 2441d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert SomeOtherCheckedException { 2451d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 2461d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatThrowsOtherChecked(); 2471d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 2481d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfPossible(t, SomeCheckedException.class, 2491d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert SomeOtherCheckedException.class); 2501d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeChainingException(t); 2511d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2521d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2531d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 2541d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 2551d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect the checked exception to propagate as-is 2561d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 2571d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.twoDeclared(); 2581d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail(); 2591d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (SomeOtherCheckedException expected) { 2601d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2611d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2621d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 2631d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropageIfPossible_null() throws SomeCheckedException { 2641d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfPossible(null); 2651d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfPossible(null, SomeCheckedException.class); 2661d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfPossible(null, SomeCheckedException.class, 2671d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert SomeUncheckedException.class); 2681d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2691d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 2701d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagate_NoneDeclared_NoneThrown() { 2711d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 2721d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void noneDeclared() { 2731d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 2741d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatDoesntThrowAnything(); 2751d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 2761d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw Throwables.propagate(t); 2771d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2781d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2791d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 2801d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 2811d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect no exception to be thrown 2821d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.noneDeclared(); 2831d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2841d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 2851d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagate_NoneDeclared_UncheckedThrown() { 2861d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 2871d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void noneDeclared() { 2881d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 2891d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatThrowsUnchecked(); 2901d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 2911d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw Throwables.propagate(t); 2921d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2931d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 2941d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 2951d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 2961d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect the unchecked exception to propagate as-is 2971d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 2981d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.noneDeclared(); 2991d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail(); 3001d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (SomeUncheckedException expected) { 3011d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3021d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3031d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 3041d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagate_NoneDeclared_ErrorThrown() { 3051d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 3061d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void noneDeclared() { 3071d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 3081d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatThrowsError(); 3091d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 3101d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw Throwables.propagate(t); 3111d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3121d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3131d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 3141d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 3151d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect the error to propagate as-is 3161d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 3171d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.noneDeclared(); 3181d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail(); 3191d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (SomeError expected) { 3201d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3211d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3221d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 3231d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagate_NoneDeclared_CheckedThrown() { 3241d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 3251d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void noneDeclared() { 3261d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 3271d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatThrowsChecked(); 3281d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 3291d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw Throwables.propagate(t); 3301d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3311d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3321d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 3331d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 3341d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect the undeclared exception to have been chained inside another 3351d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 3361d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.noneDeclared(); 3371d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail(); 3381d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (RuntimeException expected) { 3391d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertTrue(expected.getCause() instanceof SomeCheckedException); 3401d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3411d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3421d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 3431d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagateIfInstanceOf_NoneThrown() 3441d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throws SomeCheckedException { 3451d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 3461d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void oneDeclared() throws SomeCheckedException { 3471d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 3481d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatDoesntThrowAnything(); 3491d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 3501d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfInstanceOf(t, SomeCheckedException.class); 3511d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw Throwables.propagate(t); 3521d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3531d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3541d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 3551d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 3561d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect no exception to be thrown 3571d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.oneDeclared(); 3581d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3591d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 3601d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagateIfInstanceOf_DeclaredThrown() { 3611d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 3621d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void oneDeclared() throws SomeCheckedException { 3631d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 3641d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatThrowsChecked(); 3651d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 3661d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfInstanceOf(t, SomeCheckedException.class); 3671d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw Throwables.propagate(t); 3681d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3691d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3701d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 3711d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 3721d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect declared exception to be thrown as-is 3731d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 3741d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.oneDeclared(); 3751d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail(); 3761d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (SomeCheckedException e) { 3771d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3781d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3791d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 3801d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagateIfInstanceOf_UncheckedThrown() 3811d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throws SomeCheckedException { 3821d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 3831d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void oneDeclared() throws SomeCheckedException { 3841d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 3851d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatThrowsUnchecked(); 3861d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 3871d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfInstanceOf(t, SomeCheckedException.class); 3881d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw Throwables.propagate(t); 3891d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3901d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3911d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 3921d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 3931d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect unchecked exception to be thrown as-is 3941d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 3951d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.oneDeclared(); 3961d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail(); 3971d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (SomeUncheckedException e) { 3981d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3991d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4001d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 4011d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropagateIfInstanceOf_UndeclaredThrown() 4021d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throws SomeCheckedException { 4031d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Sample sample = new Sample() { 4041d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override public void oneDeclared() throws SomeCheckedException { 4051d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 4061d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert methodThatThrowsOtherChecked(); 4071d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (Throwable t) { 4081d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfInstanceOf(t, SomeCheckedException.class); 4091d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw Throwables.propagate(t); 4101d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4111d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4121d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert }; 4131d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 4141d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // Expect undeclared exception wrapped by RuntimeException to be thrown 4151d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 4161d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert sample.oneDeclared(); 4171d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail(); 4181d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (RuntimeException e) { 4191d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertTrue(e.getCause() instanceof SomeOtherCheckedException); 4201d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4211d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4221d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 4231d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPropageIfInstanceOf_null() throws SomeCheckedException { 4241d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.propagateIfInstanceOf(null, SomeCheckedException.class); 4251d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4261d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 4271d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testGetRootCause_NoCause() { 4281d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert SomeCheckedException exception = new SomeCheckedException(); 4291d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertSame(exception, Throwables.getRootCause(exception)); 4301d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4311d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 4321d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testGetRootCause_SingleWrapped() { 4331d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert SomeCheckedException cause = new SomeCheckedException(); 4341d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert SomeChainingException exception = new SomeChainingException(cause); 4351d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertSame(cause, Throwables.getRootCause(exception)); 4361d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4371d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 4381d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testGetRootCause_DoubleWrapped() { 4391d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert SomeCheckedException cause = new SomeCheckedException(); 4401d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert SomeChainingException exception = 4411d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert new SomeChainingException(new SomeChainingException(cause)); 4421d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertSame(cause, Throwables.getRootCause(exception)); 4431d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4441d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 4451d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert private static class SomeThrowable extends Throwable {} 4461d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert private static class SomeError extends Error {} 4471d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert private static class SomeCheckedException extends Exception {} 4481d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert private static class SomeOtherCheckedException extends Exception {} 4491d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert private static class SomeUncheckedException extends RuntimeException {} 4501d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert private static class SomeUndeclaredCheckedException extends Exception {} 4511d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert private static class SomeChainingException extends RuntimeException { 4521d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public SomeChainingException(Throwable cause) { 4531d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert super(cause); 4541d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4551d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4561d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 4571d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert static class Sample { 4581d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert void noneDeclared() {} 4591d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /* 4601d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Subclasses of Sample will define methods with these signatures that throw 4611d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * these exceptions, so we must declare them in the throws clause here. 4621d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Eclipse doesn't think being thrown from a subclass's non-public, 4631d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * non-protected method with the same signature counts as being "used." 4641d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 4651d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @SuppressWarnings("unused") 4661d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert void oneDeclared() throws SomeCheckedException {} 4671d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @SuppressWarnings("unused") 4681d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert void twoDeclared() throws SomeCheckedException, SomeOtherCheckedException {} 4691d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4701d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 4711d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert static void methodThatDoesntThrowAnything() {} 4721d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert static void methodThatThrowsError() { 4731d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeError(); 4741d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4751d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert static void methodThatThrowsUnchecked() { 4761d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeUncheckedException(); 4771d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4781d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert static void methodThatThrowsChecked() throws SomeCheckedException { 4791d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeCheckedException(); 4801d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4811d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert static void methodThatThrowsOtherChecked() throws SomeOtherCheckedException { 4821d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeOtherCheckedException(); 4831d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4841d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert static void methodThatThrowsUndeclaredChecked() 4851d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throws SomeUndeclaredCheckedException { 4861d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert throw new SomeUndeclaredCheckedException(); 4871d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4881d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 4891d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testGetStackTraceAsString() { 4901d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert class StackTraceException extends Exception { 4911d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert StackTraceException(String message) { 4921d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert super(message); 4931d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4941d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 4951d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 4961d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert StackTraceException e = new StackTraceException("my message"); 4971d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 4981d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert String firstLine = quote(e.getClass().getName() + ": " + e.getMessage()); 4991d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert String secondLine = "\\s*at " + ThrowablesTest.class.getName() + "\\..*"; 5001d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert String moreLines = "(?:.*\n?)*"; 5011d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert String expected = firstLine + "\n" + secondLine + "\n" + moreLines; 5021d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertTrue(getStackTraceAsString(e).matches(expected)); 5031d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 5041d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 5051d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testGetCausalChain() { 5061d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert FileNotFoundException fnfe = new FileNotFoundException(); 5071d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert IllegalArgumentException iae = new IllegalArgumentException(fnfe); 5081d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert RuntimeException re = new RuntimeException(iae); 5091d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert IllegalStateException ex = new IllegalStateException(re); 5101d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 5111d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertEquals(asList(ex, re, iae, fnfe), Throwables.getCausalChain(ex)); 5121d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertSame(fnfe, Iterables.getOnlyElement(Throwables.getCausalChain(fnfe))); 5131d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 5141d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert Throwables.getCausalChain(null); 5151d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail("Should have throw NPE"); 5161d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (NullPointerException expected) { 5171d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 5181d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 5191d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert List<Throwable> causes = Throwables.getCausalChain(ex); 5201d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert try { 5211d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert causes.add(new RuntimeException()); 5221d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert fail("List should be unmodifiable"); 5231d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } catch (UnsupportedOperationException expected) { 5241d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 5251d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 5261d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 5271d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testNullPointers() throws Exception { 5281d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert NullPointerTester tester = new NullPointerTester(); 5291d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert tester.setDefault(Throwable.class, new SomeCheckedException()); 5301d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert tester.setDefault(Class.class, SomeCheckedException.class); 5311d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert tester.testAllPublicStaticMethods(Throwables.class); 5321d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 5331d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert} 534