public async Task LambdaIsNotCalledIfSequenceIsEmpty()
{
bool lambdaCalled = false;
await AsyncEnumerator.Empty <int>().ForEach(_ => lambdaCalled = true).ConfigureAwait(true);
lambdaCalled.Should().BeFalse();
}
public async Task ReturnsEmptyArrayForEmptySequence()
{
int[] array = await AsyncEnumerator.Empty <int>().ToArray().ConfigureAwait(true);
array.Should().BeEmpty();
}