public void InvoiceBLLHasItemMethod()
{
//Arrange
var data = new List <Items>
{
new Items()
{
Id = "1", Quantity = 12, OriginalPrice = 1, SalesPrice = 2,
ProductName = "Pen", Status = "Factory New"
}
}.AsQueryable();
var mockSet = new Mock <DbSet <Items> >();
mockSet.As <IQueryable <Items> >().Setup(m => m.Provider).Returns(data.Provider);
mockSet.As <IQueryable <Items> >().Setup(m => m.Expression).Returns(data.Expression);
mockSet.As <IQueryable <Items> >().Setup(m => m.ElementType).Returns(data.ElementType);
mockSet.As <IQueryable <Items> >().Setup(m => m.GetEnumerator()).Returns(data.GetEnumerator());
var mockContext = new Mock <OfficeStoreContext>();
mockContext.Setup(c => c.Items).Returns(mockSet.Object);
InvoiceBLL invoiceBLL = new InvoiceBLL(mockContext.Object);
// Act
bool HasNotItem = invoiceBLL.HasNotItem("1");
//Assert
Assert.IsFalse(HasNotItem);
}