hamcrest

Using Espresso and Hamcrest, How can I count items number available in a recyclerView? Exemple: I would like check if 5 items are displaying in a specific RecyclerView (scrolling if necessary). nenick Here an example ViewAssertion to check RecyclerView item count public class RecyclerViewItemCountAssertion implements ViewAssertion { private final int expectedCount; public RecyclerViewItemCountAssertion(int expectedCount) { this.expectedCount = expectedCount; } @Override public void check(View view, NoMatchingViewException noViewFoundException) { if (noViewFoundException != null) { throw

When I look at the examples in the Assert class JavaDoc assertThat("Help! Integers don't work", 0, is(1)); // fails: // failure message: // Help! Integers don't work // expected: is <1> // got value: <0> assertThat("Zero is one", 0, is(not(1))) // passes I dont see a big advantage over, let's say, assertEquals( 0, 1 ) . It's nice maybe for the messages if the constructs get more complicated but do you see more advantages? Readability? Joachim Sauer There's no big advantage for those cases where an assertFoo exists that exactly matches your intent. In those cases they behave almost the same.

I am trying to access a button from a specific view. The same view is displayed 6 times. This is the code I am using. public void testTimeConfig(){ onData(withDesc("description")).onChildView(withId(R.id.positive)).perform(click()); } private static Matcher<Object> withDesc(String desc) { return allOf(is(instanceOf(String.class)), is(desc)); } When I run, I get an error: Error performing 'load adapter data' on view 'is assignable from class: class android.widget.AdapterView'. Is this the best way to access a child view? If so, how? EDIT This is the code I am trying to use now. onView(allOf(

I was wondering if anyone knew of a way to check if a List is empty using assertThat() and Matchers ? Best way I could see just use JUnit: assertFalse(list.isEmpty()); But I was hoping that there was some way to do this in Hamcrest. skaffman Well there's always assertThat(list.isEmpty(), is(false)); ... but I'm guessing that's not quite what you meant :) Alternatively: assertThat((Collection)list, is(not(empty()))); empty() is a static in the Matchers class. Note the need to cast the list to Collection , thanks to Hamcrest 1.2's wonky generics. The following imports can be used with hamcrest 1