Junit and android test

参考：http://www.open-open.com/lib/view/open1328152424546.html

搭建Junit
http://zhidao.baidu.com/link?url=vMCO-E0_utuzonHcMnZ-xj0168uooyIV7fnDRttjbTdZmIw5daFYD2x549IRZ1eslePTvB7mc-mpuJa5zfvCDdJwqmamO5UHFDgAenmismO
java file

package cn.edu.wtu.junit;

public class Calcuator {
public double add(double n1, double n2) {
return n1 + n1;
}
}

testcase file

package cn.edu.wtu.junit;

import junit.framework.TestCase;

public class TestCalcuator extends TestCase {

public void testAdd1(){
Calcuator calcuator = new Calcuator();
double result = calcuator.add(1, 2);
assertEquals(3,result,1);
}
public void testAdd2(){
Calcuator calcuator = new Calcuator();
double result = calcuator.add(1, 2);
assertEquals(0,result,0);
}
public void testAdd3(){
}
}

junit中：assertEquals(expResult, result,0.0);

expResult  你期望的结果，即你预测程序运行后出现的结果
result   实际运行后得到的结果。
0.0   两个结果间的允许误差

testsuit file

package cn.edu.wtu.junit;

import junit.framework.Test;
import junit.framework.TestSuite;
import junit.textui.TestRunner;

public class TestAll extends TestSuite {

public static Test getSuite(){
TestSuite test = new TestSuite("test");
test.addTestSuite(TestCalcuator.class);
test.addTestSuite(TestCalcuator2.class);
return test;
}

public static void main(String args[]){
TestRunner.run(getSuite());
}
}

控制台输出：

..F...F.
Time: 0.002
There were 2 failures:
1) testAdd2(cn.edu.wtu.junit.TestCalcuator)junit.framework.AssertionFailedError: expected:<0.0> but was:<2.0>
at cn.edu.wtu.junit.TestCalcuator.testAdd2(TestCalcuator.java:15)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at cn.edu.wtu.junit.TestAll.main(TestAll.java:18)
2) testAdd2(cn.edu.wtu.junit.TestCalcuator2)junit.framework.AssertionFailedError: expected:<0.0> but was:<2.0>
at cn.edu.wtu.junit.TestCalcuator2.testAdd2(TestCalcuator2.java:15)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at cn.edu.wtu.junit.TestAll.main(TestAll.java:18)

FAILURES!!!
Tests run: 6,  Failures: 2,  Errors: 0

android test

首先看下非instrumentation框架测试

代码：

AndroidTestCase文件

package aexp.junit;

import android.content.ContentResolver;
import android.content.ContentValues;
import android.database.Cursor;
import android.net.Uri;
import android.provider.Contacts;
import android.util.Log;
import android.test.AndroidTestCase;

public class ContactTest extends AndroidTestCase
{
static final String LOG_TAG = "ContactTest";
static final String TESTUSER_NAME = "Test User";
static final String TESTUSER_NOTES = "Test note";
ContentResolver contentResolver;
Uri newPerson;

public void setUp()
{
contentResolver = getContext().getContentResolver();
ContentValues person = new ContentValues();
person.put(Contacts.People.NAME, TESTUSER_NAME );
person.put(Contacts.People.NOTES, TESTUSER_NOTES );

newPerson = contentResolver.insert(
Contacts.People.CONTENT_URI,person);
}

public void testInsertContact()
{
Log.d( LOG_TAG, "testInsertContact" );
assertNotNull( newPerson );
}

public void testQueryContact()
{
Log.d( LOG_TAG, "testQueryContact" );
String columns[] = { Contacts.People.NAME,
Contacts.People.NOTES };
Cursor c = contentResolver.query( Contacts.People.CONTENT_URI,
columns,
Contacts.People.NAME+"=?",
new String[] { TESTUSER_NAME },
null );
assertNotNull( c );
int hits = 0;
while( c.moveToNext() )
{
int nameColumnIndex = c.getColumnIndex( Contacts.People.NAME );
int notesColumnIndex = c.getColumnIndex( Contacts.People.NOTES );
String name = c.getString( nameColumnIndex );
String notes = c.getString( notesColumnIndex );
Log.d( LOG_TAG,"retrieved name: "+name );
Log.d( LOG_TAG,"retrieved notes: "+notes );
assertEquals( TESTUSER_NAME, name );
assertEquals( TESTUSER_NOTES, notes );
++hits;
}
assertEquals( hits,1 );
c.close();
}

@Override
public void tearDown()
{
contentResolver.delete( newPerson, null, null );
}
}

　　

AndroidTestCase文件

package aexp.junit;

import android.test.AndroidTestCase;
import android.util.Log;

public class MathTest extends AndroidTestCase
{
protected int i1;
protected int i2;
static final String LOG_TAG = "MathTest";

@Override
public void setUp()
{
i1 = 2;
i2 = 3;
}

public void testAdd()
{
Log.d( LOG_TAG, "testAdd" );
assertTrue( LOG_TAG+"1", ( ( i1 + i2 ) == 5 ) );
}

public void testAndroidTestCaseSetupProperly()
{
super.testAndroidTestCaseSetupProperly();
Log.d( LOG_TAG, "testAndroidTestCaseSetupProperly" );
}
}

　　testcase文件

package aexp.junit;

import junit.framework.TestCase;
import junit.framework.TestSuite;
import junit.framework.Assert;

public class SomeTest extends  TestCase{
public void testSomething() throws Throwable
{
Assert.assertTrue(1 + 1 == 2);
}

public void testSomethingElse() throws Throwable
{
Assert.assertTrue(1 + 1 == 3);
}
}

　　suite 文件

package aexp.junit;

import junit.framework.TestSuite;

public class ExampleSuite extends TestSuite
{
public ExampleSuite()
{
addTestSuite( MathTest.class );
addTestSuite( ContactTest.class );
addTestSuite(SomeTest.class);
}
}

　　新建andoridTest工程后 menifest中自动生成如下

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="aexp.junit.test"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk android:minSdkVersion="7" />

<instrumentation
android:name="android.test.InstrumentationTestRunner"
android:targetPackage="aexp.junit.test" />

<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<uses-library android:name="android.test.runner" />
</application>

</manifest>

讲解：

setup 初始化

teardown 程序执行结束后 回收变量

instrumentation框架：

package com.example.testandroidtestactivity.test;

import android.app.Instrumentation;
import android.test.ActivityInstrumentationTestCase2;
import android.test.UiThreadTest;
import android.widget.TextView;

import com.example.testandroidtestactivity.MainActivity;

public class MainActivityTest extends ActivityInstrumentationTestCase2<MainActivity> {

public MainActivityTest(Class<MainActivity> activityClass) {
super(activityClass);
}
@SuppressWarnings("deprecation")
public MainActivityTest() {
super("cn.edu.wtu.junit", MainActivity.class);
}

private Instrumentation mInstrument;
private MainActivity mActivity;
private TextView tv;

@Override
protected void setUp() throws Exception {
super.setUp();
mInstrument = getInstrumentation();
// 启动被测试的Activity
mActivity = getActivity();
tv = (TextView) mActivity.findViewById(com.example.testandroidtestactivity.R.id.tv);
}

public void testUITextView(){

mInstrument.runOnMainSync(new Runnable() {
public void run() {
tv.setText("test text!!");
}
});
}

@Override
protected void tearDown() throws Exception {
// TODO Auto-generated method stub
super.tearDown();
}

@Override
protected void runTest() throws Throwable {
// TODO Auto-generated method stub
super.runTest();
}

}