相关疑难解决方法(0)

我正在努力使用Espresso在Android上进行功能测试.我的应用程序是一个Multdex应用程序,所以我按照以下链接写的说明如下:(https://developer.android.com/tools/building/multidex.html).

我已经像这样配置了我的build.gradle:

apply plugin: 'com.android.application'
apply plugin: 'android-apt'
def AAVersion = '3.3.2'

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.neenbedankt.gradle.plugins:android-apt:1.4'
    }
}
    apt {
        arguments {
            androidManifestFile variant.outputs[0].processResources.manifestFile
            resourcePackageName 'br.com.foo'
        }
    }

    android {
        compileSdkVersion 21
        buildToolsVersion "21.1.2"
        defaultConfig {
            applicationId "br.com.foo"
            minSdkVersion 15
            targetSdkVersion 21
            android.enforceUniquePackageName = false
            multiDexEnabled true
            compileOptions {
                sourceCompatibility JavaVersion.VERSION_1_7
                targetCompatibility JavaVersion.VERSION_1_7
            }

            testApplicationId "br.com.foo.test"
            testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
            testInstrumentationRunner "com.android.test.runner.MultiDexTestRunner"
        }

        buildTypes {
            release {
                minifyEnabled false
                proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
            }
        } …

页面http://developer.android.com/tools/building/multidex.html#testing 建议

   dependencies {
     compile 'com.android.support:multidex:1.0.1'
     androidTestCompile 'com.android.support:multidex-instrumentation:1.0.1'
   }
   android {
     defaultConfig {
        multiDexEnabled true
        testInstrumentationRunner "android.support.multidex.MultiDexTestRunner"
     }
  }

但是在运行测试时会产生ClassNotFoundException.

API文档和dexdump显示有com.android.test.runner.MultiDexTestRunner.

所以如果我不相信文档而是指定

   dependencies {
     compile 'com.android.support:multidex:1.0.1'
     androidTestCompile 'com.android.support:multidex-instrumentation:1.0.1'
   }
  android {
     defaultConfig {
        multiDexEnabled true
        testInstrumentationRunner "com.android.test.runner.MultiDexTestRunner"
     }
   }

然后我明白了

com/company/myapp/MyApp; had used a different Landroid/support/multidex/MultiDexApplication; during pre-verification 
...
IllegalAccessExceptionIllegalAccessError: Class ref in pre-verified class resolved to unexpected implementation

我怀疑doc页面是错误的,正确的路径是com.android.test.runner.MultiDexTestRunner ...加上我还有其他一些问题.

请注意,multidex应用程序工作正常.不知何故,第二个MultiDexApplication包含在测试apk中.

问题:
MultiDexTestRunner的正确路径是哪条？为什么我在测试apk中获得第二个MultiDexApplication？