1.在AndroidManifest.xml配置文件的<application>标签中加入：
<uses-library android:name="android.test.runner" />
<application>标签外面加入：
<uses-permission android:name="android.permission.RUN_INSTRUMENTATION" />
<instrumentationandroid:name="android.test.InstrumentationTestRunner"
android:targetPackage=""com.test"android:label="Test for my app"/>
2.编写单元测试代码：必须继承自AndroidTestCase类
public void testGetDaysofWeek() throws Exception{
DemoServise servise = new DemoServise();
int week = servise.getDaysofWeek();
Assert.assertEquals(3, week);
}
3.执行测试