/*
* Copyright 2009 Martin Grotzke
*
* 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 de.javakaffee.web.msm;
import static org.testng.Assert.assertEquals;
import java.lang.reflect.Method;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import de.javakaffee.web.msm.Statistics.MinMaxAvgProbe;
/**
* Test the {@link Statistics}.
*
* @author <a href="mailto:martin.grotzke@javakaffee.de">Martin Grotzke</a>
*/
public class StatisticsTest {
public static void main( final String[] args ) {
final Method[] methods = Statistics.class.getMethods();
for ( final Method method : methods ) {
if ( method.getName().startsWith( "get" )) {
System.out.println( method.getName() );
}
}
}
@DataProvider( name = "methodNamesProvider" )
public Object[][] createStatisticMethodNames() {
return new Object[][] {
{ "getRequestsWithBackupFailure", "requestWithBackupFailure" },
{ "getRequestsWithTomcatFailover", "requestWithTomcatFailover" },
{ "getRequestsWithMemcachedFailover", "requestWithMemcachedFailover" },
{ "getRequestsWithoutSession", "requestWithoutSession" },
{ "getRequestsWithoutSessionAccess", "requestWithoutSessionAccess" },
{ "getRequestsWithoutAttributesAccess", "requestWithoutAttributesAccess" },
{ "getRequestsWithoutSessionModification", "requestWithoutSessionModification" },
{ "getRequestsWithSession", "requestWithSession" },
{ "getNonStickySessionsPingFailed", "nonStickySessionsPingFailed" },
{ "getNonStickySessionsReadOnlyRequest", "nonStickySessionsReadOnlyRequest" }
};
}
@Test( dataProvider = "methodNamesProvider" )
public void testCounts( final String getterMethod, final String updateMethod ) throws Exception {
final Statistics cut = Statistics.create();
final Method getMethod = Statistics.class.getMethod( getterMethod );
assertEquals( ((Long)getMethod.invoke( cut )).longValue(), 0 );
Statistics.class.getMethod( updateMethod ).invoke( cut );
assertEquals( ((Long)getMethod.invoke( cut )).longValue(), 1 );
}
@Test
public void testDisabledRequestWithBackup() {
final Statistics cut = Statistics.create( false );
assertEquals( cut.getRequestsWithBackupFailure(), 0 );
cut.requestWithBackupFailure();
assertEquals( cut.getRequestsWithBackupFailure(), 0 );
}
@Test
public void testMinMaxAvgProbe() {
final MinMaxAvgProbe cut = new MinMaxAvgProbe();
assertValues( cut, 0, 0, 0, 0 );
cut.register( 1 );
assertValues( cut, 1, 1, 1, 1 );
cut.register( 1 );
assertValues( cut, 2, 1, 1, 1 );
cut.register( 4 );
assertValues( cut, 3, 1, 4, 2 );
cut.register( 0 );
assertValues( cut, 4, 0, 4, 1.5 );
}
private void assertValues( final MinMaxAvgProbe cut, final int count, final int min, final int max, final double avg ) {
assertEquals( cut.getCount(), count );
assertEquals( cut.getMin(), min );
assertEquals( cut.getMax(), max );
assertEquals( cut.getAvg(), avg );
}
}