public async Task GetArticleTableData_Should_ReturnTheCorrectType()
{
var articles = new List <Article> {
new Article(), new Article(), new Article()
}.AsQueryable();
A.CallTo(() => _mediator.Send(A <GetAriclesQuery> ._, A <CancellationToken> ._)).Returns(articles);
var result = await _sut.GetArticleTableData(new DataTablesParam());
result.Should().BeOfType <DataTablesResult <ArticleViewModel> >();
}