public void JsonSerializationTest()
{
File.Delete(@"..\..\products.json");
CollectionProductModel model = new CollectionProductModel(new JsonProductSerializer());
Product product1 = new Product("p1", "Dog Dinner", 1.30);
//serializes product collection
bool created = model.Create(product1);
//deserializes product collection
model = new CollectionProductModel(new JsonProductSerializer());
//assert
Assert.True(model.Products.Contains(product1));
}
public void SelectById_ProductId_ReturnsProduct()
{
//arrange
CollectionProductModel model = new CollectionProductModel();
Product product = new Product("p1", "Dog Dinner", 1.20);
model.Create(product);
//act
Product retrievedProduct = model.SelectById("p1");
//assert
Assert.NotNull(retrievedProduct);
Assert.Equal(product, retrievedProduct);
}
public void Delete_IdOfProduct_RemovesProductFromCollection()
{
//arrange
CollectionProductModel model = new CollectionProductModel();
Product product = new Product("p1", "Dog Dinner", 1.20);
model.Create(product);
//act
bool deleted = model.Delete("p1");
//assert
Product retrievedProduct = model.SelectById("p1");
Assert.Null(retrievedProduct);
Assert.True(deleted);
}
public void CreateProductCallsWriteProductMethodOfSerializer()
{
//arrange
Mock <IProductSerializer> serializer = new Mock <IProductSerializer>();
serializer.Setup(s => s.ReadProducts()).Returns(new List <Product>());
CollectionProductModel model = new CollectionProductModel(serializer.Object);
Product product1 = new Product("p1", "Dog Dinner", 1.20);
//act
bool created = model.Create(product1);
//assert
serializer.Verify(s => s.WriteProducts(It.IsAny <ICollection <Product> >()));
}
public void Create_Product_AddsProductToCollectionn()
{
//arrange
CollectionProductModel model = new CollectionProductModel();
Product product = new Product("p1", "Dog Dinner", 1.20);
//act
bool added = model.Create(product);
//assert
ICollection <Product> products = model.Products;
Assert.NotNull(products);
Assert.Equal(1, products.Count);
Assert.True(products.Contains(product));
Assert.True(added);
}
public void Update_Product_ModifiesProductInCollection()
{
//arrange
CollectionProductModel model = new CollectionProductModel();
Product product = new Product("p1", "Dog Dinner", 1.20);
Product updatedProduct = new Product("p1", "Dog Dinner", 1.40);
model.Create(product);
//act
bool updated = model.Update(updatedProduct);
//assert
Product retrievedProduct = model.SelectById("p1");
Assert.NotNull(retrievedProduct);
Assert.Equal(1.40, retrievedProduct.CostPrice);
Assert.True(updated);
}
public void SelectByName_PartOfProductName_ReturnsMatchingProducts()
{
//arrange
CollectionProductModel model = new CollectionProductModel();
Product product1 = new Product("p1", "Dog Dinner", 1.20);
Product product2 = new Product("p2", "Fork", 0.4);
model.Create(product1);
model.Create(product2);
//act
ICollection <Product> products = model.SelectByName("Dog");
//assert
Assert.NotNull(products);
Assert.Equal(1, products.Count);
Assert.True(products.Contains(product1));
}
