junit.framework.AssertionFailedError: Ausnahme im Konstruktor: (java.lang.NoClassDefFoundError)

Question

Ich versuche espresso2 in mein Projekt zu implementieren, und ich kann kein Problem mit appcompat Bibliothek Abhängigkeit im Test herausfinden. Wenn ich Aktivität verwendete, funktionierte es. Als ich ActionBarActivity oder FragmentActivity bin es gewohnt, dann habe ich diesen Fehler:

---

junit.framework.AssertionFailedError: Exception in constructor: testCheckText (java.lang.NoClassDefFoundError: ait.common.testunittest.app.MainActivity2 
at ait.common.testunittest.app.test.MainActivity2Test.<init>(MainActivity2Test.java:18) 
at java.lang.reflect.Constructor.constructNative(Native Method) 
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 
at junit.framework.TestSuite.createTest(TestSuite.java:61) 
at junit.framework.TestSuite.addTestMethod(TestSuite.java:294) 
at junit.framework.TestSuite.addTestsFromTestCase(TestSuite.java:150) 
at junit.framework.TestSuite.<init>(TestSuite.java:129) 
at android.support.test.internal.runner.junit3.NonLeakyTestSuite.<init>(NonLeakyTestSuite.java:34) 
at android.support.test.internal.runner.junit3.AndroidTestSuite.<init>(AndroidTestSuite.java:43) 
at android.support.test.internal.runner.junit3.AndroidJUnit3Builder.runnerForClass(AndroidJUnit3Builder.java:50) 
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:57) 
at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:29) 
at org.junit.runner.Computer.getRunner(Computer.java:38) 
at org.junit.runner.Computer$1.runnerForClass(Computer.java:29) 
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:57) 
at org.junit.runners.model.RunnerBuilder.runners(RunnerBuilder.java:98) 
at org.junit.runners.model.RunnerBuilder.runners(RunnerBuilder.java:84) 
at org.junit.runners.Suite.<init>(Suite.java:79) 
at org.junit.runner.Computer.getSuite(Computer.java:26) 
at android.support.test.internal.runner.TestRequestBuilder.classes(TestRequestBuilder.java:598) 
at android.support.test.internal.runner.TestRequestBuilder.build(TestRequestBuilder.java:578) 
at android.support.test.runner.AndroidJUnitRunner.buildRequest(AndroidJUnitRunner.java:542) 
at android.support.test.runner.AndroidJUnitRunner.onStart(AndroidJUnitRunner.java:269) 
at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1701) 
) 
at junit.framework.Assert.fail(Assert.java:50) 
at junit.framework.TestSuite$1.runTest(TestSuite.java:97) 
at junit.framework.TestCase.runBare(TestCase.java:134) 
at junit.framework.TestResult$1.protect(TestResult.java:115) 
at junit.framework.TestResult.runProtected(TestResult.java:133) 
at android.support.test.internal.runner.junit3.DelegatingTestResult.runProtected(DelegatingTestResult.java:90) 
at junit.framework.TestResult.run(TestResult.java:118) 
at android.support.test.internal.runner.junit3.AndroidTestResult.run(AndroidTestResult.java:49) 
at junit.framework.TestCase.run(TestCase.java:124) 
at android.support.test.internal.runner.junit3.NonLeakyTestSuite$NonLeakyTest.run(NonLeakyTestSuite.java:63) 
at junit.framework.TestSuite.runTest(TestSuite.java:243) 
at junit.framework.TestSuite.run(TestSuite.java:238) 
at android.support.test.internal.runner.junit3.DelegatingTestSuite.run(DelegatingTestSuite.java:103) 
at android.support.test.internal.runner.junit3.AndroidTestSuite.run(AndroidTestSuite.java:63) 
at android.support.test.internal.runner.junit3.JUnit38ClassRunner.run(JUnit38ClassRunner.java:90) 
at org.junit.runners.Suite.runChild(Suite.java:128) 
at org.junit.runners.Suite.runChild(Suite.java:24) 
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231) 
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60) 
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229) 
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50) 
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222) 
at org.junit.runners.ParentRunner.run(ParentRunner.java:300) 
at org.junit.runner.JUnitCore.run(JUnitCore.java:157) 
at org.junit.runner.JUnitCore.run(JUnitCore.java:136) 
at android.support.test.runner.AndroidJUnitRunner.onStart(AndroidJUnitRunner.java:270) 
at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1701) 

---

12-21 16:24:57.187: W/dalvikvm(8197): Class resolved by unexpected DEX: Landroid/support/v7/app/ActionBarActivity;(0xa5047ce0):0x95060000 ref [Landroid/support/v4/app/FragmentActivity;] Landroid/support/v4/app/FragmentActivity;(0xa5047ce0):0x9523e000 
12-21 16:24:57.187: W/dalvikvm(8197): (Landroid/support/v7/app/ActionBarActivity; had used a different Landroid/support/v4/app/FragmentActivity; during pre-verification) 
12-21 16:24:57.187: W/dalvikvm(8197): Unable to resolve superclass of Landroid/support/v7/app/ActionBarActivity; (285) 
12-21 16:24:57.187: W/dalvikvm(8197): Link of class 'Landroid/support/v7/app/ActionBarActivity;' failed 
12-21 16:24:57.187: W/dalvikvm(8197): Unable to resolve superclass of Lait/common/testunittest/app/MainActivity2; (1026) 
12-21 16:24:57.187: W/dalvikvm(8197): Link of class 'Lait/common/testunittest/app/MainActivity2;' failed 
12-21 16:24:57.191: E/dalvikvm(8197): Could not find class 'ait.common.testunittest.app.MainActivity2', referenced from method ait.common.testunittest.app.test.MainActivity2Test.<init> 
12-21 16:24:57.191: W/dalvikvm(8197): VFY: unable to resolve const-class 6 (Lait/common/testunittest/app/MainActivity2;) in Lait/common/testunittest/app/test/MainActivity2Test; 

---

---

package ait.common.testunittest.app; 


import android.support.v4.app.Fragment; 
import android.support.v7.app.ActionBarActivity; 
import android.os.Bundle; 

public class MainActivity2 extends ActionBarActivity { 

    Fragment fragment; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
    } 
} 

---

buildscript { 
    repositories { 
     jcenter() 
    } 
    dependencies { 
     classpath 'com.android.tools.build:gradle:0.14.2' 
    } 
} 
apply plugin: 'com.android.application' 

repositories { 
    jcenter() 
} 

android { 
    compileSdkVersion 21 
    buildToolsVersion "21.1.1" 

    defaultConfig { 
     applicationId "ait.common.testunittest.app" 
     testApplicationId "ait.common.testunittest.app.test" 
     minSdkVersion 15 
     targetSdkVersion 21 
     versionCode 1 
     versionName "1.0" 
     testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 
    } 
    buildTypes { 
     release { 
      minifyEnabled false 
      proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 
     } 
    } 
    packagingOptions { 
     exclude 'META-INF/DEPENDENCIES.txt' 
     exclude 'META-INF/LICENSE.txt' 
     exclude 'META-INF/NOTICE.txt' 
     exclude 'META-INF/NOTICE' 
     exclude 'META-INF/LICENSE' 
     exclude 'META-INF/DEPENDENCIES' 
     exclude 'META-INF/notice.txt' 
     exclude 'META-INF/license.txt' 
     exclude 'META-INF/dependencies.txt' 
     exclude 'META-INF/LGPL2.1' 
     exclude 'META-INF/ASL2.0' 
     exclude 'META-INF/ASL2.0' 
     exclude 'LICENSE.txt' 
    } 
    lintOptions { 
     abortOnError false 
    } 

    sourceSets { 
     androidTest { 
      setRoot('src/test') 
     } 
    } 
} 

dependencies { 
    compile fileTree(include: ['*.jar'], dir: 'libs') 
    compile 'com.android.support:appcompat-v7:21.0.3' 
    compile 'com.android.support:support-v4:21.0.3' 

    // Espresso 
    androidTestCompile 'com.android.support.test.espresso:espresso-core:2.0' 
    androidTestCompile 'com.android.support.test:testing-support-lib:0.1' 
    androidTestCompile 'com.android.support.test.espresso:espresso-contrib:2.0' 
} 

package ait.common.testunittest.app.test; 

import ait.common.testunittest.app.MainActivity; 
import ait.common.testunittest.app.R; 
import android.support.test.espresso.Espresso; 
import android.support.test.espresso.assertion.ViewAssertions; 
import android.support.test.espresso.matcher.ViewMatchers; 
import android.test.ActivityInstrumentationTestCase2; 


    public class MainActivityTest extends ActivityInstrumentationTestCase2<MainActivity2> { 

     public MainActivityTest() { 
      // This constructor was deprecated - but we want to support lower API levels. 
      super(MainActivity2.class); 
     } 
     @Override 
     public void setUp() throws Exception { 
      super.setUp(); 
      // Espresso will not launch our activity for us, we must launch it via getActivity(). 
      getActivity(); 
     } 

     public void testCheckText() { 
      Espresso.onView(ViewMatchers.withId(R.id.test)) 
        .check(ViewAssertions.matches(ViewMatchers.withText(R.string.hello_world))); 
     } 
    } 

Answer 1

Ich konnte dies bekommen mit Gradle zu arbeiten, indem sie Unterstützung Sachen ohne war ich mit meiner App dependencies:

//Testing 
androidTestCompile 'com.android.support.test.espresso:espresso-core:2.0' 
androidTestCompile 'com.android.support.test:testing-support-lib:0.1' 
androidTestCompile ('com.android.support.test.espresso:espresso-contrib:2.0') { 
    exclude group: 'com.android.support', module: 'appcompat' 
    exclude group: 'com.android.support', module: 'support-v4' 
    exclude module: 'recyclerview-v7' 
} 

Answer 2

hatte ich das gleiche Problem und dann bemerkt, wenn Wegnehmen

androidTestCompile 'com.android.support.test.espresso:espresso-contrib:2.0' 

Der Test lief gut. Ich möchte wirklich die neuen RecyclerViewActions, also habe ich versucht, das espresso-contrib-2.0-Glas separat herunterzuladen. Das hat seltsamerweise das Problem für mich behoben. Hier ist ein Link zu den Repo https://code.google.com/p/android-test-kit/source/browse/#git%2Fbin%2Fespresso2.0