Java tutorial
/* * Copyright (c) 2011-2012 Lockheed Martin Corporation * * 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.eurekastreams.commons.server; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertNull; import static org.junit.Assert.assertSame; import static org.junit.Assert.assertTrue; import org.apache.commons.lang.StringUtils; import org.eurekastreams.commons.exceptions.AuthorizationException; import org.eurekastreams.commons.exceptions.ExecutionException; import org.eurekastreams.commons.exceptions.GeneralException; import org.eurekastreams.commons.exceptions.InvalidActionException; import org.eurekastreams.commons.exceptions.SessionException; import org.eurekastreams.commons.exceptions.ValidationException; import org.eurekastreams.server.persistence.mappers.cache.Transformer; import org.junit.Test; import org.springframework.beans.factory.NoSuchBeanDefinitionException; /** * Tests ExceptionSanitizer. */ public class ExceptionSanitizerTest { /** * Common parts of tests that insure exceptions do not contain a nested cause. * * @param inputException * Exception to be thrown. * @return Exception returned by SUT. */ private Exception coreForbidNestingExceptionTest(final Exception inputException) { Transformer<Exception, Exception> sut = new ExceptionSanitizer(); Exception outputException = sut.transform(inputException); assertNull(outputException.getCause()); return outputException; } /** * Tests how exceptions are returned to client. */ @Test public void testExecutionExceptionNested() { Exception exIn = new ExecutionException(new ArithmeticException()); Exception exOut = coreForbidNestingExceptionTest(exIn); assertTrue(exOut instanceof ExecutionException); assertEquals(exIn.getMessage(), exOut.getMessage()); } /** * Tests how exceptions are returned to client. */ @Test public void testExecutionExceptionNonNested() { Exception exIn = new ExecutionException(); Exception exOut = coreForbidNestingExceptionTest(exIn); assertSame(exIn, exOut); } /** * Tests how exceptions are returned to client. */ @Test public void testGeneralExceptionNested() { Exception exIn = new GeneralException(new ArithmeticException()); Exception exOut = coreForbidNestingExceptionTest(exIn); assertTrue(exOut instanceof GeneralException); assertEquals(exIn.getMessage(), exOut.getMessage()); } /** * Tests how exceptions are returned to client. */ @Test public void testGeneralExceptionNonNested() { Exception exIn = new GeneralException(); Exception exOut = coreForbidNestingExceptionTest(exIn); assertSame(exIn, exOut); } /** * Tests how exceptions are returned to client. */ @Test public void testAuthorizationExceptionNested() { Exception exIn = new AuthorizationException(new ArithmeticException()); Exception exOut = coreForbidNestingExceptionTest(exIn); assertTrue(exOut instanceof AuthorizationException); assertEquals(exIn.getMessage(), exOut.getMessage()); } /** * Tests how exceptions are returned to client. */ @Test public void testAuthorizationExceptionNonNested() { Exception exIn = new AuthorizationException(); Exception exOut = coreForbidNestingExceptionTest(exIn); assertSame(exIn, exOut); } /** * Tests how exceptions are returned to client. */ @Test public void testValidationExceptionNonNested() { Exception exIn = new ValidationException(); Exception exOut = coreForbidNestingExceptionTest(exIn); assertSame(exIn, exOut); } /** * Tests how exceptions are returned to client. */ @Test public void testBadBeanException() { Exception exIn = new NoSuchBeanDefinitionException("Spring's message"); Exception exOut = coreForbidNestingExceptionTest(exIn); assertTrue(exOut instanceof GeneralException); assertTrue(exOut.getCause() == null || exOut.getCause() == exOut); assertTrue(!exOut.getMessage().equals(exIn.getMessage())); } /** * Tests how exceptions are returned to client. */ @Test public void testBadActionException() { Exception exIn = new InvalidActionException("Inner message"); Exception exOut = coreForbidNestingExceptionTest(exIn); assertTrue(exOut instanceof GeneralException); assertTrue(exOut.getCause() == null || exOut.getCause() == exOut); assertTrue(!exOut.getMessage().equals(exIn.getMessage())); } /** * Tests how exceptions are returned to client. */ @Test public void testSessionException() { Exception exIn = new SessionException("Inner message"); Exception exOut = coreForbidNestingExceptionTest(exIn); assertTrue(exOut instanceof SessionException); assertTrue(exOut.getCause() == null || exOut.getCause() == exOut); assertTrue(StringUtils.isEmpty(exOut.getMessage()) || !exOut.getMessage().equals(exIn.getMessage())); } /** * Tests how exceptions are returned to client. */ @Test public void testOtherExceptionNonNested() { Exception exIn = new IllegalArgumentException("bad"); Exception exOut = coreForbidNestingExceptionTest(exIn); assertTrue(exOut instanceof GeneralException); assertTrue(!exIn.getMessage().equals(exOut.getMessage())); } /** * Tests how exceptions are returned to client. */ @Test public void testOtherExceptionNested() { final IllegalStateException exCause = new IllegalStateException("really bad"); Exception exIn = new IllegalArgumentException(exCause); Exception exOut = coreForbidNestingExceptionTest(exIn); assertTrue(exOut instanceof GeneralException); assertTrue(!exIn.getMessage().equals(exOut.getMessage())); assertTrue(!exCause.getMessage().equals(exOut.getMessage())); } }