java - 无法实例化检测 ComponentInfo

Question

我正在尝试为 Android 设置 JUnit 测试并且我有 list 等设置但我不断收到此错误:

java.lang.RuntimeException: Unable to instantiate instrumentation ComponentInfo {com.example.Android/android.test.InstrumentationTestRunner}: java.lang.ClassNotFoundException: android.test.InstrumentationTestRunner in loader dalvik.system.PathClassLoader[/data/app/com.example.Android-1.apk:/data/app/com.example.Android-1.apk]

测试类:

  public class ConnectionToSiteTest extends AndroidTestCase{
    private final String emailUsername = "testUser@gmail.com";
    private final String password = "test";
    private final String features = "222222";
    private String commands;

    public void testCommandReturn(){
        requestToSite();

        assertEquals("222222", commands);
    }

    private void requestToSite(){
        try {
            // Create params for connection including 3sec timeout
            // on connection and 5sec timeout on socket
            HttpParams httpParams = new BasicHttpParams();
            int timeoutConnection = 3000;
            int timeoutSocket = 5000;

            // Set the timeouts
            HttpConnectionParams.setConnectionTimeout(httpParams,
                    timeoutConnection);
            HttpConnectionParams.setSoTimeout(httpParams, timeoutSocket);
            HttpClient httpClient = new DefaultHttpClient(httpParams);

            // Create the data entities
            HttpPost post = new HttpPost("http://example.com/AndroidCommands");
            HttpResponse response;

            // Set POST data
            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(
                    2);
            nameValuePairs.add(new BasicNameValuePair("emailUsername",
                    emailUsername));
            nameValuePairs.add(new BasicNameValuePair("password",
                    password));
            nameValuePairs.add(new BasicNameValuePair("features",
                    features));
            post.setEntity(new UrlEncodedFormEntity(nameValuePairs));

            // Query the server and store the user's ID
            response = httpClient.execute(post);

            // Grabs the command string from response headers and processes them
            commands = (String) response.getHeaders("commands")[0].getValue();

        } catch (UnsupportedEncodingException e) {
        } catch (ClientProtocolException e) {
        } catch (IOException e) {
        }
    }
}

AndroidManifest.xml:

<uses-library android:name="android.test.runner" />
<instrumentation android:name="android.test.InstrumentationTestRunner"
   android:targetPackage="edu.neumont.MillerK.Android" android:label="Tests for My App" />
<activity
        android:name="com.example.Android.ConnectionToSiteTest">            
    </activity>

测试套件类:

    public class AllTests extends TestSuite {
    public static Test suite() {
        return new TestSuiteBuilder(AllTests.class).includeAllPackagesUnderHere().build();
    }
}

我一直试图在某处找到相同的异常，但它已被修复，但没有找到任何东西。

Answer 1

您确定测试在正确的 Android 测试项目中吗？您可以在 Eclipse 中添加一个，方法是右键单击您的项目 -> Android 工具 -> 添加 Android 测试项目。您所有的测试都应该放在该项目中。