如何在授予所有Android M权限的情况下运行单元测试？

task grantPermissions(type: Exec,dependsOn: 'installDebugAndroidTest') {
def permissions = ['INTERNET','GET_ACCOUNTS','WAKE_LOCK','VIBRATE','READ_CONTACTS','RECORD_AUdio','CAMERA','WRITE_EXTERNAL_STORAGE','READ_EXTERNAL_STORAGE']
permissions.each {
    commandLine "\$ANDROID_HOME/platform-tools/adb sHell pm grant com.singlewire.cirrus android.permission.${it}".split(' ')
}}

tasks.whenTaskAdded { task ->
    if (task.name.startsWith('connectedDebugAndroidTest')) {
       task.dependsOn grantPermissions
    }
}