Issue
I have this line of Espresso test code:
onView(withId(R.id.rvWorkDaySchedule)).perform(swipeDown());
And rvWorkDaySchedule
is shown in red in the editor of Android Studio because there is no such XML view id in the layouts - I create this RecyclerView programmatically.
So how do I detect views that have been inflated programmatically with Espresso?
Solution
First of all, Espresso allows you to use Hamcrest matchers in tests.
The most useful for catching the programmatically added views are withChild
, withParent
, hasSibling
, and hasDescendant
.
To make it more clear, I would give a simple example from my app:
onView(withId(R.id.action_bar_details))
.check(matches(withChild(withChild(withText("Details")))));
Secondly, for RecyclerView
tests in Espresso use onData
methods instead onView
.
Espresso 2.1. Espresso Cheat Sheet Master
Another example from my app - using onData
method
onData(anything()).inAdapterView(withId(R.id.listView)).atPosition(getRandomPosition()).
onChildView(withId(R.id.item)).check(matches(isDisplayed()));
Finally, check these great Googles repository for get more examples
Answered By - piotrek1543
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