Revision control
Copy as Markdown
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
package org.mozilla.reference.browser.helpers
import androidx.test.core.app.ActivityScenario
import androidx.test.espresso.IdlingRegistry
import org.junit.rules.ExternalResource
import org.mozilla.reference.browser.BrowserActivity
/**
* A [org.junit.Rule] to handle shared test set up for tests on [BrowserActivity].
*/
class BrowserActivityTestRule : ExternalResource() {
/**
* Ensures the test doesn't advance until session page load is completed.
*
* N.B.: in the current implementation, tests pass without this so it seems to be
* unnecessary: I think this is because the progress bar animation acts as the
* necessary idling resource. However, we leave this in just in case the
* implementation changes and the tests break. In that case, this code might be
* broken because it's not used, and thus tested, at present.
*/
private lateinit var loadingIdlingResource: SessionLoadedIdlingResource
private lateinit var scenario: ActivityScenario<BrowserActivity>
val activity: BrowserActivity
get() {
var result: BrowserActivity? = null
scenario.onActivity { result = it }
return checkNotNull(result) { "Activity unavailable — scenario may be in a terminal state" }
}
override fun before() {
loadingIdlingResource = SessionLoadedIdlingResource().also {
IdlingRegistry.getInstance().register(it)
}
scenario = ActivityScenario.launch(BrowserActivity::class.java)
}
override fun after() {
scenario.close()
IdlingRegistry.getInstance().unregister(loadingIdlingResource)
}
}