public void ByVendor_Should_Throw_ArgumentException_If_VendorId_Is_Empty()
{
IQueryable <Product> products = new Product[0].AsQueryable();
Guid vendorId = Guid.Empty;
var ex = Assert.Throws <ArgumentException>(() => ProductExtensions.ByVendor(products, vendorId));
Assert.Equal(nameof(vendorId), ex.ParamName);
}
public void ByVendor_Should_Throw_ArgumentNullException_If_Products_Is_Null()
{
IQueryable <Product> products = null;
Guid vendorId = Guid.NewGuid();
var ex = Assert.Throws <ArgumentNullException>(() => ProductExtensions.ByVendor(products, vendorId));
Assert.Equal(nameof(products), ex.ParamName);
}
public void ByVendor_Should_Return_Only_Products_With_The_Specified_Vendor()
{
var vendor = Brand.Create("brand", "brand");
var p1 = Product.Create("ean", "sku", "name", "url");
var p2 = Product.Create("ean", "sku", "name", "url");
var p3 = Product.Create("ean", "sku", "name", "url");
p1.SetVendor(vendor);
p2.SetVendor(vendor);
IQueryable <Product> products = new Product[]
{
p1, p2, p3
}.AsQueryable();
Guid vendorId = vendor.Id;
var productsByVendor = ProductExtensions.ByVendor(products, vendorId).ToArray();
Assert.True(productsByVendor.All(p => p.Vendor != null && p.Vendor.Id == vendorId));
}
