org.springframework.aop.interceptor.PerformanceMonitorInterceptorTests.java Source code

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Here is the source code for org.springframework.aop.interceptor.PerformanceMonitorInterceptorTests.java

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/*
 * 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 Chris Beams
 */
public class PerformanceMonitorInterceptorTests {

    @Test
    public void testSuffixAndPrefixAssignment() {
        PerformanceMonitorInterceptor interceptor = new PerformanceMonitorInterceptor();

        assertNotNull(interceptor.getPrefix());
        assertNotNull(interceptor.getSuffix());

        interceptor.setPrefix(null);
        interceptor.setSuffix(null);

        assertNotNull(interceptor.getPrefix());
        assertNotNull(interceptor.getSuffix());
    }

    @Test
    public void testSunnyDayPathLogsPerformanceMetricsCorrectly() throws Throwable {
        MethodInvocation mi = mock(MethodInvocation.class);
        given(mi.getMethod()).willReturn(String.class.getMethod("toString", new Class[0]));

        Log log = mock(Log.class);

        PerformanceMonitorInterceptor interceptor = new PerformanceMonitorInterceptor(true);
        interceptor.invokeUnderTrace(mi, log);

        verify(log).trace(anyString());
    }

    @Test
    public void testExceptionPathStillLogsPerformanceMetricsCorrectly() throws Throwable {
        MethodInvocation mi = mock(MethodInvocation.class);

        given(mi.getMethod()).willReturn(String.class.getMethod("toString", new Class[0]));
        given(mi.proceed()).willThrow(new IllegalArgumentException());
        Log log = mock(Log.class);

        PerformanceMonitorInterceptor interceptor = new PerformanceMonitorInterceptor(true);
        try {
            interceptor.invokeUnderTrace(mi, log);
            fail("Must have propagated the IllegalArgumentException.");
        } catch (IllegalArgumentException expected) {
        }

        verify(log).trace(anyString());
    }

}