Junt4 动态代码测试

Junt4 动态代码测试  方便与java在线教程编写

Listener.java

import java.util.HashMap;


import org.junit.runner.Description;
import org.junit.runner.Result;
import org.junit.runner.notification.Failure;
import org.junit.runner.notification.RunListener;




public class Listener extends RunListener {


public static long begin_mill;
public static long end_mill;
public static long test_begin_mill;
public static long test_end_mill;
public static HashMap<String, Boolean> test_map;


@Override
public void testAssumptionFailure(Failure failure) {
// TODO Auto-generated method stub
super.testAssumptionFailure(failure);
}


@Override
public void testFailure(Failure failure) throws Exception {
// TODO Auto-generated method stub
super.testFailure(failure);
Description description = failure.getDescription();
TestDescription text_doc = description.getAnnotation(TestDescription.class);
String name = description.getMethodName();
System.out.println(this);
test_map.put(name, false);
// System.out.println("test " + name + "( " + text_doc.value() + " )" +"is failure");
}


@Override
public void testFinished(Description description) throws Exception {
// TODO Auto-generated method stub
super.testFinished(description);
String name = description.getMethodName();
TestDescription text_doc = description.getAnnotation(TestDescription.class);

Boolean value = test_map.get(name);
if(value == null){
test_map.put(name, true);
}
System.out.println(this);
// System.out.println("test " + name + "( " + text_doc.value() + " )" +"is finished");

}


@Override
public void testIgnored(Description description) throws Exception {
// TODO Auto-generated method stub
super.testIgnored(description);
}


@Override
public void testRunFinished(Result result) throws Exception {
// TODO Auto-generated method stub
super.testRunFinished(result);
// System.out.println("all time " + (end_mill - begin_mill));
}


@Override
public void testRunStarted(Description description) throws Exception {
// TODO Auto-generated method stub
super.testRunStarted(description);
begin_mill = System.currentTimeMillis();
test_map = new HashMap<String, Boolean>();
}


@Override
public void testStarted(Description description) throws Exception {
// TODO Auto-generated method stub
super.testStarted(description);
String name = description.getMethodName();
// System.out.println("test " + name + "is started");
}

}

TestDescription.java

import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;


import java.lang.annotation.Retention;
import java.lang.annotation.Target;


@Target({METHOD})
@Retention(RUNTIME)
public @interface TestDescription {
String value();
}

rule: 
Practice.java

public class Practice {
public int sum(int a,int b){
return a + b;
}
}
PracticeTest.java
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;




@RunWith(JUnit4.class)
public class PracticeTest {


@Test
@TestDescription("sum(1, 2) -> 3")
public void test1() {
Practice a = new Practice();
Assert.assertEquals(3,a.sum(1, 2));
}

@Test
@TestDescription("sum(1, 3) -> 4")
public void test2() {
Practice a = new Practice();
Assert.assertEquals(4,a.sum(1, 3));
}

@Test
@TestDescription("sum(2, 2) -> 4")
public void test3() {
Practice a = new Practice();
Assert.assertEquals(4,a.sum(2, 2));
}

@Test
@TestDescription("sum(2, 3) -> 4")
public void test4() {
Practice a = new Practice();
Assert.assertEquals(4,a.sum(2, 3));
}


}

Main.java

import java.util.Iterator;
import java.util.Set;


import org.junit.runner.JUnitCore;
import org.junit.runner.Result;






public class Main {


/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
JUnitCore core = new org.junit.runner.JUnitCore();
core.addListener(new Listener());
Result result = core.run(PracticeTest.class);

Set<String> set = Listener.test_map.keySet();
Iterator<String> it = set.iterator();
while(it.hasNext()){
String name = it.next();
boolean is_success = Listener.test_map.get(name);
String is_success_str = is_success ? "success" : "failure"; 
System.out.println("test " + name + " : " + is_success_str );
}

System.out.println(result.wasSuccessful());


}


}