{% setvar book_path %}/reference/kotlin/androidx/_book.yaml{% endsetvar %} {% include "_shared/_reference-head-tags.html" %}

ViewAssertions

class ViewAssertions

Collection of common ViewAssertions.

Summary

Public constructors
`ViewAssertions()`

Public functions
`java-static ViewAssertion!`	`doesNotExist()` Returns an assert that ensures the view matcher does not find any matching view in the hierarchy.
`java-static ViewAssertion!`	`matches(viewMatcher: Matcher<Any!>!)` Returns a generic `ViewAssertion` that asserts that a view exists in the view hierarchy and is matched by the given view matcher.
`java-static ViewAssertion!`	`selectedDescendantsMatch(selector: Matcher<View!>!, matcher: Matcher<View!>!)` Returns a generic `ViewAssertion` that asserts that the descendant views selected by the selector match the specified matcher.

ViewAssertions()

java-static fun doesNotExist(): ViewAssertion!

Returns an assert that ensures the view matcher does not find any matching view in the hierarchy.

java-static fun matches(viewMatcher: Matcher<Any!>!): ViewAssertion!

Returns a generic ViewAssertion that asserts that a view exists in the view hierarchy and is matched by the given view matcher.

java-static fun selectedDescendantsMatch(selector: Matcher<View!>!, matcher: Matcher<View!>!): ViewAssertion!

Returns a generic ViewAssertion that asserts that the descendant views selected by the selector match the specified matcher.

Example: onView(rootView).check(selectedDescendantsMatch(not(isAssignableFrom(TextView.class)), hasContentDescription()));