/*
* Copyright (c) 2002-2012 Alibaba Group Holding Limited.
* All rights reserved.
*
* 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 com.alibaba.citrus.service.pipeline.valve;
import static com.alibaba.citrus.test.TestUtil.*;
import static org.junit.Assert.*;
import com.alibaba.citrus.service.pipeline.Pipeline;
import com.alibaba.citrus.service.pipeline.PipelineContext;
import com.alibaba.citrus.service.pipeline.PipelineException;
import com.alibaba.citrus.service.pipeline.TooManyLoopsException;
import com.alibaba.citrus.service.pipeline.Valve;
import com.alibaba.citrus.service.pipeline.impl.PipelineImpl;
import com.alibaba.citrus.service.pipeline.impl.valve.LoopValve;
import org.junit.Test;
public class AbstractLoopValveTests<V extends LoopValve> extends AbstractValveTests<V> {
@Test
public void getLoopBody() {
// no body by default
assertNull(valve.getLoopBody());
// set body
Pipeline pipeline = createPipeline(new LogValve(), new LogValve(), new LogValve());
valve.setLoopBody(pipeline);
assertSame(pipeline, valve.getLoopBody());
}
@Test
public void getMaxLoopCount() {
// default value
assertEquals(10, valve.getMaxLoopCount());
// value <= 0, no limit
valve.setMaxLoopCount(0);
assertEquals(0, valve.getMaxLoopCount());
valve.setMaxLoopCount(-1);
assertEquals(0, valve.getMaxLoopCount());
// set positive value
valve.setMaxLoopCount(20);
assertEquals(20, valve.getMaxLoopCount());
}
@Test
public void getLoopCounterName() {
// default value
assertEquals("loopCount", valve.getLoopCounterName());
// set empty
valve.setLoopCounterName(null);
assertEquals("loopCount", valve.getLoopCounterName());
valve.setLoopCounterName(" ");
assertEquals("loopCount", valve.getLoopCounterName());
// set value
valve.setLoopCounterName(" test ");
assertEquals("test", valve.getLoopCounterName());
}
@Test
public void init_() throws Exception {
try {
valve.afterPropertiesSet();
fail();
} catch (IllegalArgumentException e) {
assertThat(e, exception("no loop body"));
}
}
@Test
public void loop_notInited() throws Exception {
PipelineImpl pipeline = createPipeline(new LogValve(), valve, new LogValve());
try {
pipeline.newInvocation().invoke();
fail();
} catch (PipelineException e) {
assertThat(e, exception(IllegalStateException.class, "not been initialized yet"));
}
}
@Test
public void loop_exceedsMax() throws Exception {
PipelineImpl pipeline = createPipeline(new LogValve(), valve, new LogValve());
// default maxLoopCount = 10
valve.setLoopBody(createPipeline(new LogValve(), new LogValve(), new LogValve()));
valve.afterPropertiesSet();
try {
pipeline.newInvocation().invoke();
fail();
} catch (TooManyLoopsException e) {
assertThat(e, exception("Too many loops: exceeds the maximum count: 10"));
}
assertLog("1-1", //
"2-1-loop-0", "2-2-loop-0", "2-3-loop-0", //
"2-1-loop-1", "2-2-loop-1", "2-3-loop-1", //
"2-1-loop-2", "2-2-loop-2", "2-3-loop-2", //
"2-1-loop-3", "2-2-loop-3", "2-3-loop-3", //
"2-1-loop-4", "2-2-loop-4", "2-3-loop-4", //
"2-1-loop-5", "2-2-loop-5", "2-3-loop-5", //
"2-1-loop-6", "2-2-loop-6", "2-3-loop-6", //
"2-1-loop-7", "2-2-loop-7", "2-3-loop-7", //
"2-1-loop-8", "2-2-loop-8", "2-3-loop-8", //
"2-1-loop-9", "2-2-loop-9", "2-3-loop-9" //
);
// set maxLoopCount = 1
valve.setLoopBody(createPipeline(new LogValve(), new LogValve(), new LogValve()));
valve.setMaxLoopCount(1);
try {
pipeline.newInvocation().invoke();
fail();
} catch (TooManyLoopsException e) {
assertThat(e, exception("Too many loops: exceeds the maximum count: 1"));
}
assertLog("1-1", //
"2-1-loop-0", "2-2-loop-0", "2-3-loop-0");
}
@Test
public void loop_withBreak() throws Exception {
PipelineImpl pipeline = createPipeline(new LogValve(), valve, new LogValve());
final int[] counter = new int[] { 2 };
class CountDownValve implements Valve {
private int levels;
public CountDownValve(int levels) {
this.levels = levels;
}
public void invoke(PipelineContext pipelineContext) {
ExecutionLog.add(pipelineContext);
if (--counter[0] == 0) {
pipelineContext.breakPipeline(levels);
}
pipelineContext.invokeNext();
}
}
// break levels=0, loops=2
valve.setLoopBody(createPipeline(new LogValve(), new CountDownValve(0), new LogValve()));
valve.afterPropertiesSet();
counter[0] = 2;
assertInvoke(pipeline, false);
assertLog("1-1", //
"2-1-loop-0", "2-2-loop-0", "2-3-loop-0", //
"2-1-loop-1", "2-2-loop-1", /* broken *///
"1-3");
// break levels=1, loops=3
counter[0] = 3;
valve.setLoopBody(createPipeline(new LogValve(), new CountDownValve(1), new LogValve()));
assertInvoke(pipeline, true);
assertLog("1-1", //
"2-1-loop-0", "2-2-loop-0", "2-3-loop-0", //
"2-1-loop-1", "2-2-loop-1", "2-3-loop-1", //
"2-1-loop-2", "2-2-loop-2" /* broken *///
);
// break levels=1, loops=20, maxLoopCount=unlimited
counter[0] = 20;
valve.setLoopBody(createPipeline(new LogValve(), new CountDownValve(1), new LogValve()));
valve.setMaxLoopCount(0);
assertInvoke(pipeline, true);
assertLog("1-1", //
"2-1-loop-0", "2-2-loop-0", "2-3-loop-0", //
"2-1-loop-1", "2-2-loop-1", "2-3-loop-1", //
"2-1-loop-2", "2-2-loop-2", "2-3-loop-2", //
"2-1-loop-3", "2-2-loop-3", "2-3-loop-3", //
"2-1-loop-4", "2-2-loop-4", "2-3-loop-4", //
"2-1-loop-5", "2-2-loop-5", "2-3-loop-5", //
"2-1-loop-6", "2-2-loop-6", "2-3-loop-6", //
"2-1-loop-7", "2-2-loop-7", "2-3-loop-7", //
"2-1-loop-8", "2-2-loop-8", "2-3-loop-8", //
"2-1-loop-9", "2-2-loop-9", "2-3-loop-9", //
"2-1-loop-10", "2-2-loop-10", "2-3-loop-10", //
"2-1-loop-11", "2-2-loop-11", "2-3-loop-11", //
"2-1-loop-12", "2-2-loop-12", "2-3-loop-12", //
"2-1-loop-13", "2-2-loop-13", "2-3-loop-13", //
"2-1-loop-14", "2-2-loop-14", "2-3-loop-14", //
"2-1-loop-15", "2-2-loop-15", "2-3-loop-15", //
"2-1-loop-16", "2-2-loop-16", "2-3-loop-16", //
"2-1-loop-17", "2-2-loop-17", "2-3-loop-17", //
"2-1-loop-18", "2-2-loop-18", "2-3-loop-18", //
"2-1-loop-19", "2-2-loop-19" /* broken *///
);
}
}