Cannot resolve symbol InstantTaskExecutorRule

Question

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

@Rule
public InstantTaskExecutorRule instantTaskExecutorRule          


        

Answer 1

Please put this two dependencies in your gradle file,

dependencies {

    // Test helpers for LiveData
    testImplementation "android.arch.core:core-testing:1.0.0"

    // Test helpers for Room
    testImplementation "android.arch.persistence.room:testing:1.0.0"
}

Further information please go through this link, Android Architecture components integration guide