CODEWITHSUNDEEP
androidandroid-espresso
ZakTaccardi
ZakTaccardi

Reputation: 12467

Espresso - how to wait for idle without an assertion/view interaction?

I would like to simply block the instrumentation (test) thread until Espresso is idle.

fun test(){
    // do some stuff
    Espresso.waitForIdle()
    // do some more stuff once Espresso reports that the application is idle
}

What's the best way to do this?

note: Espresso.waitForIdle() is a method I made up

Upvotes: 8

Views: 8150

Answers (2)

MehranB
MehranB

Reputation: 1525

There is also the following:

InstrumentationRegistry.getInstrumentation().waitForIdle {

}

which run the code inside lambda after it is idle.

Upvotes: 1

chessdork
chessdork

Reputation: 2019

You can use InstrumentationRegistry.getInstrumentation().waitForIdleSync(). https://developer.android.com/reference/android/app/Instrumentation.html#waitForIdleSync()

There is also Espresso.onIdle(), but the documentation warns Only call this method for tests that do not interact with any UI elements, but require Espresso's main thread synchronisation! https://developer.android.com/reference/android/support/test/espresso/Espresso.html#onIdle()

Upvotes: 8

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