android - 使用Espresso : Class ref in pre-verified class resolved to unexpected implementation运行检测测试

我正在使用google-espresso在Kitkat平台上测试系统应用“通讯录”。我的测试项目位于＃android-dir＃/cts/tests/tests/contactTest。

这是.mk:

LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)

# don't include this package in any target
LOCAL_MODULE_TAGS := optional
# and when built explicitly put it in the data partition
LOCAL_MODULE_PATH := $(TARGET_OUT_DATA_APPS)

LOCAL_JAVA_LIBRARIES := android.test.runner

LOCAL_STATIC_JAVA_LIBRARIES += librarycontacts

LOCAL_CERTIFICATE := shared

LOCAL_SRC_FILES := $(call all-java-files-under, src)

LOCAL_PACKAGE_NAME := contactsTest

LOCAL_INSTRUMENTATION_FOR := Contacts

include $(BUILD_CTS_PACKAGE)

##################################################
include $(CLEAR_VARS)

LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES += librarycontacts:libs/espresso-1.0-SNAPSHOT-bundled.jar

include $(BUILD_MULTI_PREBUILT)

这是Manifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.android.contacts.test"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="7"
        android:targetSdkVersion="19" />

    <instrumentation
        android:name="com.google.android.apps.common.testing.testrunner.GoogleInstrumentationTestRunner"
        android:targetPackage="com.android.contacts" />

    <application>
        <uses-library android:name="android.test.runner" />
    </application>

</manifest>

这是命令:

> $ mmm cts/tests/tests/contactsTest/
> $ adb install -r out/target/product/generic/data/app/contactsTest.apk
> $ adb shell am instrument -w -r com.android.contacts.test/com.google.android.apps.common.testing.testrunner.GoogleInstrumentationTestRunner

然后我得到这个错误:

INSTRUMENTATION_RESULT: longMsg=java.lang.IllegalAccessError: Class ref in pre-verified class resolved to unexpected implementation

当我使用Eclipse编译并运行它时，一切都很好。并且它只是在这里失败，我在guideline之后尝试了espresso-dependencies和espresso-standalone，但都没有用。

这个问题真的把我搞砸了。
我是新来的，任何答复表示赞赏。谢谢。

最佳答案

我在Espresso 2中遇到了这个问题，最终发现依赖性问题出在支持库中。我将以下configurations添加到build.gradle的顶层来解决此问题。

configurations {
    androidTestCompile.exclude group: 'com.android.support'
    androidTestCompile.exclude module: 'support-v4'
}

dependencies {
    compile 'com.android.support:support-v4:21.+'
    // more dependencies

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

关于android - 使用Espresso : Class ref in pre-verified class resolved to unexpected implementation运行检测测试，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/20323881/