public void ProductIsFromDifferentSupplier_ExceptionThrown()
{
var supplier = new SupplierBuilder().Id(123).Build();
var purchaseOrder = new PurchaseOrderBuilder()
.Supplier(supplier)
.Build();
var lineItem = new PurchaseOrderLineBuilder()
.Product(new ProductBuilder().SupplierId(789).Build())
.Build();
Assert.Throws <PurchaseOrderTrackerException>(() => purchaseOrder.AddLineItem(lineItem));
}
public void ProductIsFromSameSupplier_LineItemAddedToCollection()
{
var supplier = new SupplierBuilder().Id(123).Build();
var purchaseOrder = new PurchaseOrderBuilder()
.Supplier(supplier)
.Build();
var lineItem = new PurchaseOrderLineBuilder()
.Product(new ProductBuilder().SupplierId(123).Build())
.Build();
purchaseOrder.AddLineItem(lineItem);
}
public void NullProduct_ThrowsArgumentNullException()
{
try
{
var line = new PurchaseOrderLineBuilder().Product(null).Build();
Assert.Fail("Expected exception to be thrown");
}
catch (Exception ex)
{
Assert.That(ex, Is.InstanceOf <ArgumentNullException>());
Assert.That(ex.Message.ToLower(), Contains.Substring("product"));
}
}
public void Always_AssignsValues()
{
var product = new ProductBuilder().Build();
var line = new PurchaseOrderLineBuilder()
.Product(product)
.PurchasePrice(100)
.PurchaseQty(10)
.Build();
Assert.That(line.Product, Is.SameAs(product));
Assert.That(line.PurchasePrice, Is.EqualTo(100));
Assert.That(line.PurchaseQty, Is.EqualTo(10));
}