public void TestCalculatePriceForKgProduct()
{
var builder = new ArticleBuilder();
builder.SetProductCode(productCode: "Banana");
builder.SetUnitPrice(unitPrice: 2.99M);
article = builder.BuildArticle();
Assert.AreEqual(4.57, article.CalculatePrice(quantity: 1.53M), "Rounded to 2dp");
Assert.AreEqual(3.02, article.CalculatePrice(quantity: 1.01M), "Rounded to 2dp");
}
public void TestCalculatePrice()
{
Assert.AreEqual(1.25M, article.CalculatePrice(quantity: 1), "base unit purchase");
Assert.AreEqual(3.0M, article.CalculatePrice(quantity: 3), "bulk purchase");
Assert.AreEqual(4.25M, article.CalculatePrice(quantity: 4), "Should use base unit price for left over bulk purchase");
Assert.AreEqual(6.0M, article.CalculatePrice(quantity: 6), "Should support multilpe bulk purchase");
}