Come utilizzare Robolectric 2.4 in Android Studio 1.1.0 e gradle 2.2.1

Question

Non riesco a configurare il mio progetto Android Studio con Robolectric. Qualcuno potrebbe guidarmi passo dopo passo a costruire un progetto Android Studio 1.1.0 con Robolectric 2.4 & gradle 2.2.1

Questo esempio di progetti funziona bene https://github.com/robolectric/deckard-gradle. Ma non sono in grado di implementarlo nei miei progetti Android Studio esistenti.

// seguito sono la descrizione dettagliata

---

// contenuto del progetto di build.gradle

buildscript { 
    repositories { 
     jcenter() 
    } 
    dependencies { 
     classpath 'com.android.tools.build:gradle:1.1.0' 
    } 
} 

allprojects { 
    repositories { 
     jcenter() 
    } 
} 

---

// contenuto del app/src/build.gradle

apply plugin: 'com.android.application' 

android { 
    compileSdkVersion 21 
    buildToolsVersion "21.1.2" 

    defaultConfig { 
     applicationId "robo.testing.android.testrobo08" 
     minSdkVersion 16 
     targetSdkVersion 21 
     versionCode 1 
     versionName "1.0" 
    } 
    buildTypes { 
     release { 
      minifyEnabled false 
      proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 
     } 
    } 
    sourceSets { main { java.srcDirs = ['src/main/java'] } } 
} 

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

    // Test Compile 
    testCompile 'junit:junit:4.12' 
    testCompile 'org.robolectric:robolectric:2.4' 
    testCompile "org.mockito:mockito-core:1.9.5" 
} 

---

// contenuto del MainActivityTest

package robo.testing.android.testrobo08.test; 

import android.app.Activity; 
import android.widget.TextView; 

import org.junit.Test; 
import org.junit.runner.RunWith; 
import org.robolectric.Robolectric; 
import org.robolectric.RobolectricTestRunner; 
import org.robolectric.annotation.Config; 

import robo.testing.android.testrobo08.MainActivity; 
import robo.testing.android.testrobo08.R; 

import static org.hamcrest.CoreMatchers.equalTo; 
import static org.junit.Assert.assertThat; 

/** 
* Created by cflap584 on 13/3/15. 
*/ 

@RunWith(RobolectricTestRunner.class) 
@Config(manifest = "./src/main/AndroidManifest.xml", emulateSdk = 18) 

public class MainActivityTest { 
    Activity activity = Robolectric.buildActivity(MainActivity.class).create().get(); 

    TextView textView = (TextView) activity.findViewById(R.id.myTextView); 

    @Test 
    public void testTextView_lableName() throws Exception { 
     String actual = textView.getText().toString(); 
     assertThat("Hello World!", equalTo(actual)); 
    } 


} 

---

// ERRORE

robo.testing.android.testrobo08.test.MainActivityTest > testTextView_lableName STANDARD_ERROR 
    WARNING: no system properties value for ro.build.date.utc 

robo.testing.android.testrobo08.test.MainActivityTest > testTextView_lableName STANDARD_OUT 
    DEBUG: Loading resources for robo.testing.android.testrobo08 from ././src/main/res... 
    DEBUG: Loading resources for android from jar:/home/cflap584/.m2/repository/org/robolectric/android-all/4.3_r2-robolectric-0/android-all-4.3_r2-robolectric-0.jar!/res... 
Gradle Test Executor 1 finished executing tests. 

robo.testing.android.testrobo08.test.MainActivityTest > testTextView_lableName FAILED 
    java.lang.RuntimeException: Could not find any resource from reference ResName{robo.testing.android.testrobo08:style/Theme_AppCompat_Light_DarkActionBar} from style StyleData{name='AppTheme', parent='Theme_AppCompat_Light_DarkActionBar'} with theme null 
     at org.robolectric.shadows.ShadowAssetManager$StyleResolver.getParent(ShadowAssetManager.java:456) 
     at org.robolectric.shadows.ShadowAssetManager$StyleResolver.getAttrValue(ShadowAssetManager.java:394) 
     at org.robolectric.shadows.ShadowResources.getOverlayedThemeValue(ShadowResources.java:294) 
     at org.robolectric.shadows.ShadowResources.findAttributeValue(ShadowResources.java:283) 
     at org.robolectric.shadows.ShadowResources.attrsToTypedArray(ShadowResources.java:186) 
     at org.robolectric.shadows.ShadowResources.access$000(ShadowResources.java:44) 
     at org.robolectric.shadows.ShadowResources$ShadowTheme.obtainStyledAttributes(ShadowResources.java:491) 
     at org.robolectric.shadows.ShadowResources$ShadowTheme.obtainStyledAttributes(ShadowResources.java:486) 
     at org.robolectric.shadows.ShadowResources$ShadowTheme.obtainStyledAttributes(ShadowResources.java:481) 
     at android.content.res.Resources$Theme.obtainStyledAttributes(Resources.java) 
     at android.content.Context.obtainStyledAttributes(Context.java:380) 
     at android.support.v7.app.ActionBarActivityDelegate.onCreate(ActionBarActivityDelegate.java:147) 
     at android.support.v7.app.ActionBarActivityDelegateBase.onCreate(ActionBarActivityDelegateBase.java:138) 
     at android.support.v7.app.ActionBarActivity.onCreate(ActionBarActivity.java:123) 
     at robo.testing.android.testrobo08.MainActivity.onCreate(MainActivity.java:13) 
     at android.app.Activity.performCreate(Activity.java:5133) 
     at org.robolectric.internal.ReflectionHelpers$3.run(ReflectionHelpers.java:64) 
     at org.robolectric.internal.ReflectionHelpers.traverseClassHierarchy(ReflectionHelpers.java:114) 
     at org.robolectric.internal.ReflectionHelpers.callInstanceMethodReflectively(ReflectionHelpers.java:59) 
     at org.robolectric.util.ActivityController$1.run(ActivityController.java:115) 
     at org.robolectric.shadows.ShadowLooper.runPaused(ShadowLooper.java:268) 
     at org.robolectric.util.ActivityController.create(ActivityController.java:111) 
     at org.robolectric.util.ActivityController.create(ActivityController.java:122) 
     at robo.testing.android.testrobo08.test.MainActivityTest.<init>(MainActivityTest.java:26) 

Answer 1

ho trovato il problema. Nel mio caso non è stato possibile trovare il file AndroidManifest.xml & non ho usato customRobolectricTestRunner.

contenuti Progetto Struttura

Gradle Version 2.2.1 
    Android Plugin Version 1.1.0 

progetto del file build.gradle

buildscript { 
    repositories { 
     jcenter() 
    } 
    dependencies { 
     classpath 'com.android.tools.build:gradle:1.1.0' 
    } 
} 

allprojects { 
    repositories { 
     jcenter() 
    } 
} 

contenuto del file di App build.gradle

apply plugin: 'com.android.application' 

android { 
    compileSdkVersion 21 
    buildToolsVersion "21.1.2" 

    defaultConfig { 
     applicationId "robo.testing.android.testrobo" 
     minSdkVersion 16 
     targetSdkVersion 18 
     versionCode 1 
     versionName "1.0" 
    } 
    buildTypes { 
     release { 
      minifyEnabled false 
      proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 
     } 
    } 
    sourceSets { main { java.srcDirs = ['src/main/java'] } } 
} 

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


// Test Compile 
    testCompile 'junit:junit:4.12' 
    testCompile 'org.robolectric:robolectric:2.4' 
    testCompile "org.mockito:mockito-core:1.9.5" 
} 

Corporatura Varianti

Test Artificat : Unit Tests 

ho trovato un po 'di riferimento per la mia soluzione https://github.com/robolectric/robolectric/issues/1592
@erd Se si utilizza Gradle/Android Studio, è necessario creare un corridore di prova personalizzata che vi dirà Robolectric dove trovare le risorse unite, risorse e manifesto. Si prega di consultare la discussione qui:

http://nenick-android.blogspot.in/2015/03/android-studio-110-and-robolectric-30.html

contenuto di src/test/java/packageName.test/CustomRobolectricRunner.java

public CustomRobolectricRunner(Class<?> testClass) 
      throws InitializationError { 
     super(testClass); 
     String buildVariant = (BuildConfig.FLAVOR.isEmpty() 
       ? "" : BuildConfig.FLAVOR+ "/") + BuildConfig.BUILD_TYPE; 
     String intermediatesPath = BuildConfig.class.getResource("") 
       .toString().replace("file:", ""); 
     intermediatesPath = intermediatesPath 
       .substring(0, intermediatesPath.indexOf("/classes")); 

     System.setProperty("android.package", 
       BuildConfig.APPLICATION_ID); 
     System.setProperty("android.manifest", 
       intermediatesPath + "/manifests/full/" 
         + buildVariant + "/AndroidManifest.xml"); 
     System.setProperty("android.resources", 
       intermediatesPath + "/res/" + buildVariant); 
     System.setProperty("android.assets", 
       intermediatesPath + "/assets/" + buildVariant); 
    } 

Contenuto MainActivityTest.java

package robo.testing.android.testrobo.test; 

import android.app.Activity; 
import android.widget.TextView; 

import org.junit.Test; 
import org.junit.runner.RunWith; 
import org.robolectric.Robolectric; 

import robo.testing.android.testrobo.MainActivity; 
import robo.testing.android.testrobo.R; 

import static org.hamcrest.MatcherAssert.assertThat; 
import static org.hamcrest.core.IsEqual.equalTo; 

/** 
* Created by cflap584 on 16/3/15. 
*/ 

@RunWith(CustomRobolectricTestRunner.class) 
public class MainActivityTest { 
    Activity activity = Robolectric.buildActivity(MainActivity.class).create().get(); 
    TextView textView = (TextView) activity.findViewById(R.id.myTextView); 

    @Test 
    public void testTextView_labelName() throws Exception { 
     String actual = textView.getText().toString(); 
     assertThat("Hello world!", equalTo(actual)); 

    } 

}