Method AssertCount

AssertCount<TSource>(IAsyncEnumerable<TSource>, int)

Asserts that a source sequence contains a given count of elements.

Declaration

public static IAsyncEnumerable<TSource> AssertCount<TSource>(this IAsyncEnumerable<TSource> source, int count)

Parameters

Type	Name	Description
IAsyncEnumerable<TSource>	source	Source sequence.
int	count	Count to assert.

Returns

Type	Description
IAsyncEnumerable<TSource>	Returns the original sequence as long it is contains the number of elements specified by count. Otherwise it throws ArgumentException.

Type Parameters

Name	Description
TSource	Type of elements in source sequence.

Remarks

This operator uses deferred execution and streams its results.

Exceptions

Type	Condition
ArgumentNullException	source is null.
ArgumentOutOfRangeException	count is less than 0.
ArgumentException	source has a length different than count.