在Eclipse + jUnit上对Android应用程序进行单元测试 - 测试运行失败:测试运行不完整.预计1次测试,收到0

Question

我正在尝试为我的Android应用程序进行一些单元测试.我正在关注Android开发中心的Hello,Testing教程,但它给了我一条消息:

测试运行失败:测试运行不完整.预计1次测试,收到0

这是我的代码:

public class LoginTest extends ActivityInstrumentationTestCase2<Login> {

Activity mActivity;
EditText mLoginTxt;
EditText mPwdTxt;
Button mLoginBtn;
Button mClearBtn;

public LoginTest(String pkg, Class<Login> activityClass) {
    super("pkg_name", Login.class);
}

@Override
public void setUp() throws Exception {
    super.setUp();
}

public void testPreconditions() {

}

public void testClear() {
    assertTrue(true);
}

这是控制台输出:

[2011-08-23 12:21:12 - <AppNameTest>] ------------------------------
[2011-08-23 12:21:12 - <AppNameTest>] Android Launch!
[2011-08-23 12:21:12 - <AppNameTest>] adb is running normally.
[2011-08-23 12:21:12 - <AppNameTest>] Performing android.test.InstrumentationTestRunner JUnit launch
[2011-08-23 12:21:12 - <AppNameTest>] Automatic Target Mode: using existing emulator 'emulator-5554' running compatible AVD 'AndroidHDPI'
[2011-08-23 12:21:14 - <AppNameTest>] Application already deployed. No need to reinstall.
[2011-08-23 12:21:14 - <AppNameTest>] Project dependency found, installing: <AppName>
[2011-08-23 12:21:16 - <AppNameTest>] Application already deployed. No need to reinstall.
[2011-08-23 12:21:16 - <AppNameTest>] Launching instrumentation android.test.InstrumentationTestRunner on device emulator-5554
[2011-08-23 12:21:18 - <AppNameTest>] Collecting test information
[2011-08-23 12:21:20 - <AppNameTest>] Test run failed: Test run incomplete. Expected 1 tests, received 0

这是LogCat输出:

08-23 12:28:41.905: DEBUG/AndroidRuntime(1092): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
08-23 12:28:41.905: DEBUG/AndroidRuntime(1092): CheckJNI is ON
08-23 12:28:42.155: DEBUG/AndroidRuntime(1092): --- registering native functions ---
08-23 12:28:42.995: DEBUG/AndroidRuntime(1092): Shutting down VM
08-23 12:28:43.005: DEBUG/dalvikvm(1092): Debugger has detached; object registry had 1 entries
08-23 12:28:43.025: INFO/AndroidRuntime(1092): NOTE: attach of thread 'Binder Thread #3' failed
08-23 12:28:43.625: DEBUG/AndroidRuntime(1100): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
08-23 12:28:43.625: DEBUG/AndroidRuntime(1100): CheckJNI is ON
08-23 12:28:43.876: DEBUG/AndroidRuntime(1100): --- registering native functions ---
08-23 12:28:44.735: DEBUG/AndroidRuntime(1100): Shutting down VM
08-23 12:28:44.745: DEBUG/dalvikvm(1100): Debugger has detached; object registry had 1 entries
08-23 12:28:44.765: INFO/AndroidRuntime(1100): NOTE: attach of thread 'Binder Thread #3' failed
08-23 12:28:45.385: DEBUG/AndroidRuntime(1108): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
08-23 12:28:45.385: DEBUG/AndroidRuntime(1108): CheckJNI is ON
08-23 12:28:45.645: DEBUG/AndroidRuntime(1108): --- registering native functions ---
08-23 12:28:46.555: INFO/ActivityManager(59): Force stopping package com.PatientPoint.MCC uid=10038
08-23 12:28:46.625: INFO/ActivityManager(59): Start proc <pkg_name> for added application <pkg_name>: pid=1114 uid=10038 gids={3003}
08-23 12:28:47.196: INFO/TestRunner(1114): started: warning(junit.framework.TestSuite$1)
08-23 12:28:47.236: INFO/ActivityManager(59): Force stopping package <pkg_name> uid=10038
08-23 12:28:47.246: INFO/Process(59): Sending signal. PID: 1114 SIG: 9
08-23 12:28:47.355: DEBUG/AndroidRuntime(1108): Shutting down VM
08-23 12:28:47.375: DEBUG/jdwp(1108): Got wake-up signal, bailing out of select
08-23 12:28:47.375: DEBUG/dalvikvm(1108): Debugger has detached; object registry had 1 entries
08-23 12:28:47.415: INFO/AndroidRuntime(1108): NOTE: attach of thread 'Binder Thread #3' failed

Answer 1

好吧,看起来我使用的是错误的构造函数.我已经使eclipse自动生成代码,它创建了这个:

public LoginTest(String pkg, Class<Login> activityClass) {
    super(pkg, Login.class);
}

但是,在将其更改为:

public LoginTest() {
    super("pkg_name", Login.class);
}

它工作正常.我不知道为什么,如果有人能提供解释,我很乐意接受这个答案.对于其他遇到此错误的人来说,围绕此问题的所有在线讨论似乎都表明构造函数中存在一些错误.