android - Espresso onData perform click on multiple items -


i have gridview adapter based on list of pojos of type tile minesweeper game, im doing unit tests , want click on gridview items dont have mines , longclick items have items

i have tried following:

ondata(allof(is(instanceof(tile.class)),isminematcher(true)))             .inadapterview(withid(r.id.f_minefield_gridview))             .perform(longclick());  ondata(allof(is(instanceof(tile.class)),isminematcher(false)))             .inadapterview(withid(r.id.f_minefield_gridview))             .perform(click());

with custom matcher:

public static matcher<tile> isminematcher(final boolean flag){     return new typesafematcher<tile>() {         @override         public boolean matchessafely(tile tile) {             return tile.ismine() == flag;         }          @override         public void describeto(description description) {             description.appendtext("expected "+ flag);         }     }; }

but presents following error:

android.support.test.espresso.performexception: error performing 'load adapter data' on view 'with id: com.kaissersoft.minesweepergame:id/f_minefield_gridview'. ... caused by: java.lang.runtimeexception: multiple data elements matched:

the question how perform actions on multiple items espresso?

why don't try given in testdroid. worked me:

if have other objects in adapter:

public class person {    public long id;    public string firstname;    public string lastname;    public string email; }

you can use ondata : 

ondata(allof(is(new boundedmatcher<object, person>(person.class) {     @override     public void describeto(description description) {     }     @override     protected boolean matchessafely(person obj) {         return obj.id = 12345l;     } }))).inadapterview(withid(<adapter_id>)).perform(click());

so person id=12345 found in adapter (during test execution) , clicked.

check out detailed explanation here


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