public void DeleteRegionByIdAsync_ReturnsCorrect()
{
// Arrange
_repoWrapper
.Setup(x => x.Region.GetFirstAsync(It.IsAny <Expression <Func <Region, bool> > >(),
It.IsAny <Func <IQueryable <Region>, IIncludableQueryable <Region, object> > >()))
.ReturnsAsync(new Region());
_repoWrapper
.Setup(x => x.Region.Delete(new Region()));
_repoWrapper
.Setup(x => x.SaveAsync());
// Act
var result = _regionService.DeleteRegionByIdAsync(It.IsAny <int>());
// Assert
_repoWrapper.Verify();
Assert.NotNull(result);
}