10_对应用进行单元测试

                    public class PersonServiceTest extends AndroidTestCase {
                        public void testSave()    throws Exception{
                            PersonService service = new PersonService();
                            service.save(null);
                        }
                        
                        public void testAdd() throws Exception{
                            PersonService service = new PersonService();
                            int actual = service.add(1, 2);
                            Assert.assertEquals(8, actual);
                        }
                    }
                    public class PersonService {
                        public void save(String username){
                            String sub = username.substring(6);
                        }
                        
                        public int add(int a, int b){
                            return a+b;
                        }
                    }

 《AndroidManifest.xml》

<uses-library android:name="android.test.runner" />
<instrumentation android:name="android.test.InstrumentationTestRunner"
  android:targetPackage="cn.itcast.test" android:label="Tests for My App" />