/*
* Copyright 2002-2013 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.aop.interceptor;
import org.aopalliance.intercept.MethodInvocation;
import org.apache.commons.logging.Log;
import org.junit.Test;
import static org.junit.Assert.*;
import static org.mockito.BDDMockito.*;
/**
* @author Rob Harrop
* @author Rick Evans
* @author Juergen Hoeller
* @author Chris Beams
*/
public class CustomizableTraceInterceptorTests {
@Test(expected = IllegalArgumentException.class)
public void testSetEmptyEnterMessage() {
// Must not be able to set empty enter message
new CustomizableTraceInterceptor().setEnterMessage("");
}
@Test(expected = IllegalArgumentException.class)
public void testSetEnterMessageWithReturnValuePlaceholder() {
// Must not be able to set enter message with return value placeholder
new CustomizableTraceInterceptor().setEnterMessage(CustomizableTraceInterceptor.PLACEHOLDER_RETURN_VALUE);
}
@Test(expected = IllegalArgumentException.class)
public void testSetEnterMessageWithExceptionPlaceholder() {
// Must not be able to set enter message with exception placeholder
new CustomizableTraceInterceptor().setEnterMessage(CustomizableTraceInterceptor.PLACEHOLDER_EXCEPTION);
}
@Test(expected = IllegalArgumentException.class)
public void testSetEnterMessageWithInvocationTimePlaceholder() {
// Must not be able to set enter message with invocation time placeholder
new CustomizableTraceInterceptor().setEnterMessage(CustomizableTraceInterceptor.PLACEHOLDER_INVOCATION_TIME);
}
@Test(expected = IllegalArgumentException.class)
public void testSetEmptyExitMessage() {
// Must not be able to set empty exit message
new CustomizableTraceInterceptor().setExitMessage("");
}
@Test(expected = IllegalArgumentException.class)
public void testSetExitMessageWithExceptionPlaceholder() {
// Must not be able to set exit message with exception placeholder
new CustomizableTraceInterceptor().setExitMessage(CustomizableTraceInterceptor.PLACEHOLDER_EXCEPTION);
}
@Test(expected = IllegalArgumentException.class)
public void testSetEmptyExceptionMessage() {
// Must not be able to set empty exception message
new CustomizableTraceInterceptor().setExceptionMessage("");
}
@Test(expected = IllegalArgumentException.class)
public void testSetExceptionMethodWithReturnValuePlaceholder() {
// Must not be able to set exception message with return value placeholder
new CustomizableTraceInterceptor().setExceptionMessage(CustomizableTraceInterceptor.PLACEHOLDER_RETURN_VALUE);
}
@Test
public void testSunnyDayPathLogsCorrectly() throws Throwable {
MethodInvocation methodInvocation = mock(MethodInvocation.class);
given(methodInvocation.getMethod()).willReturn(String.class.getMethod("toString", new Class[]{}));
given(methodInvocation.getThis()).willReturn(this);
Log log = mock(Log.class);
given(log.isTraceEnabled()).willReturn(true);
CustomizableTraceInterceptor interceptor = new StubCustomizableTraceInterceptor(log);
interceptor.invoke(methodInvocation);
verify(log, times(2)).trace(anyString());
}
@Test
public void testExceptionPathLogsCorrectly() throws Throwable {
MethodInvocation methodInvocation = mock(MethodInvocation.class);
IllegalArgumentException exception = new IllegalArgumentException();
given(methodInvocation.getMethod()).willReturn(String.class.getMethod("toString", new Class[]{}));
given(methodInvocation.getThis()).willReturn(this);
given(methodInvocation.proceed()).willThrow(exception);
Log log = mock(Log.class);
given(log.isTraceEnabled()).willReturn(true);
CustomizableTraceInterceptor interceptor = new StubCustomizableTraceInterceptor(log);
try {
interceptor.invoke(methodInvocation);
fail("Must have propagated the IllegalArgumentException.");
}
catch (IllegalArgumentException expected) {
}
verify(log).trace(anyString());
verify(log).trace(anyString(), eq(exception));
}
@Test
public void testSunnyDayPathLogsCorrectlyWithPrettyMuchAllPlaceholdersMatching() throws Throwable {
MethodInvocation methodInvocation = mock(MethodInvocation.class);
given(methodInvocation.getMethod()).willReturn(String.class.getMethod("toString", new Class[0]));
given(methodInvocation.getThis()).willReturn(this);
given(methodInvocation.getArguments()).willReturn(new Object[]{"$ One \\$", new Long(2)});
given(methodInvocation.proceed()).willReturn("Hello!");
Log log = mock(Log.class);
given(log.isTraceEnabled()).willReturn(true);
CustomizableTraceInterceptor interceptor = new StubCustomizableTraceInterceptor(log);
interceptor.setEnterMessage(new StringBuffer()
.append("Entering the '").append(CustomizableTraceInterceptor.PLACEHOLDER_METHOD_NAME)
.append("' method of the [").append(CustomizableTraceInterceptor.PLACEHOLDER_TARGET_CLASS_NAME)
.append("] class with the following args (").append(CustomizableTraceInterceptor.PLACEHOLDER_ARGUMENTS)
.append(") and arg types (").append(CustomizableTraceInterceptor.PLACEHOLDER_ARGUMENT_TYPES)
.append(").").toString());
interceptor.setExitMessage(new StringBuffer()
.append("Exiting the '").append(CustomizableTraceInterceptor.PLACEHOLDER_METHOD_NAME)
.append("' method of the [").append(CustomizableTraceInterceptor.PLACEHOLDER_TARGET_CLASS_SHORT_NAME)
.append("] class with the following args (").append(CustomizableTraceInterceptor.PLACEHOLDER_ARGUMENTS)
.append(") and arg types (").append(CustomizableTraceInterceptor.PLACEHOLDER_ARGUMENT_TYPES)
.append("), returning '").append(CustomizableTraceInterceptor.PLACEHOLDER_RETURN_VALUE)
.append("' and taking '").append(CustomizableTraceInterceptor.PLACEHOLDER_INVOCATION_TIME)
.append("' this long.").toString());
interceptor.invoke(methodInvocation);
verify(log, times(2)).trace(anyString());
}
@SuppressWarnings("serial")
private static class StubCustomizableTraceInterceptor extends CustomizableTraceInterceptor {
private final Log log;
public StubCustomizableTraceInterceptor(Log log) {
super.setUseDynamicLogger(false);
this.log = log;
}
@Override
protected Log getLoggerForInvocation(MethodInvocation invocation) {
return this.log;
}
}
}