无法解析符号InstantTaskExecutorRule [英] Cannot resolve symbol InstantTaskExecutorRule

问题描述

我打开示例代码BasicRxJavaSample(来自本文 Room + RxJava ) 最主要的是:

I open example code BasicRxJavaSample (from this article Room+RxJava) The main thing is there:

@Rule
public InstantTaskExecutorRule instantTaskExecutorRule = 
    new InstantTaskExecutorRule();

BasicRxJavaSample没问题. 但是我不能在测试中应用它. 这就是发生的事情:

And BasicRxJavaSample is all ok. But I can not apply this in my test. That's what's going on:

无法解析符号InstantTaskExecutorRule

Cannot resolve symbol InstantTaskExecutorRule

手动导入无效:

我的自动完成功能是这样的

My autocompletion works like this

但应该是

我的应用程序build.gradle(此处完全掠过):

My app build.gradle (full gradle here):

// tests
testImplementation 'junit:junit:4.12'
androidTestCompile "com.android.support:support-annotations:$supportVersion"
testImplementation "android.arch.core:core-testing:$archVersion"
// Test helpers for Room
testImplementation "android.arch.persistence.room:testing:1.0.0"
// https://github.com/mockito/mockito
testImplementation 'org.mockito:mockito-core:2.13.0'
androidTestImplementation 'org.mockito:mockito-android:2.13.0'
// AndroidJUnitRunner and JUnit Rules
androidTestImplementation 'com.android.support.test:rules:1.0.1'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
// https://developer.android.com/topic/libraries/testing-support-library/packages.html
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
androidTestCompile 'com.android.support.test.espresso:espresso-idling-resource:3.0.1'

推荐答案

用androidTestImplementation代替testImplementation.因此，对androidTest文件夹的测试可以访问该库.

Replace testImplementation by androidTestImplementation. So the tests on folder androidTest can have access to the library.

dependencies {
    androidTestImplementation "androidx.arch.core:core-testing:2.1.0"
}

如果您未使用 androidx ，请使用android.arch.core:core-testing:1.1.1

这篇关于无法解析符号InstantTaskExecutorRule的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！