expectError<T> function

void expectError<T>(
  1. FutureOr<void> closure(), {
  2. String? reason,
  3. dynamic skip,
})

Implementation

void expectError<T>(
  FutureOr<void> Function() closure, {
  String? reason,
  dynamic skip, // true or a String
}) {
  expect(
    closure,
    throwsA(isA<T>()),
    reason: reason,
    skip: skip,
  );
}