public void Should_correctly_CallBack_after_Consecutive_Buys()
{
//Given
var fruits = new Stock(new List <Product> {
new Product("apples", 10)
});
//When
int testQuantity = 0;
Product testProduct = null;
void TestMethod(Product product, int quantity)
{
testProduct = product;
testQuantity = quantity;
}
fruits.AddCallback(TestMethod);
fruits.Buy(1, "apples");
fruits.Buy(1, "apples");
fruits.Buy(4, "apples");
//Then
Assert.Equal(4, testQuantity);
}
public void Test_CallBack_Final_Check()
{
//Given
var fruits = new Stock(new List <Product> {
new Product("apples", 10)
});
//When
int testQuantity = 0;
Product testProduct = null;
void TestMethod(Product product, int quantity)
{
testProduct = product;
testQuantity = quantity;
}
fruits.AddCallback(TestMethod);
fruits.Buy(1, "apples");
fruits.Buy(1, "apples");
fruits.Buy(4, "apples");
fruits.Buy(1, "apples");
//Then
Assert.Equal(4, testQuantity);
}
public void Should_CallBack_after_Removing_1_element_From_10_Products()
{
//Given
var apples = new Product("apples", 10);
var fruits = new Stock(new List <Product> {
apples
});
//When
int testQuantity = 0;
Product testProduct = null;
void TestMethod(Product product, int quantity)
{
testProduct = product;
testQuantity = quantity;
}
fruits.AddCallback(TestMethod);
fruits.Buy(1, "apples");
//Then
Assert.NotNull(testProduct);
Assert.Equal(apples.Name, testProduct.Name);
Assert.Equal(9, testQuantity);
}