public void SelectAll_Should_Return_All_Products()
{
var productRepository = new JsonProductRepository(set);
ICollection <Product> products = productRepository.SelectAll();
Assert.Equal(10, products.Count);
}
public void Delete_IdOfProduct_RemovesProductFromCollection()
{
//arrange
var productRepository = new JsonProductRepository(set);
//act
bool deleted = productRepository.Delete("p1");
//assert
Assert.True(deleted);
Assert.Equal(9, set.Count);
}
public void Create_Product_AddsProductToCollection()
{
//arrange
var productRepository = new JsonProductRepository(set);
Product product = new Product("p11", "Sofa", 120);
//act
bool added = productRepository.Create(product);
//assert
Assert.Equal(11, set.Count);
}
public void Update_Product_ModifiesProductInCollection()
{
//arrange
var productRepository = new JsonProductRepository(set);
Product updatedProduct = new Product("p1", "Pedigree Chum", 0.75, 1.50);
//act
bool updated = productRepository.Update(updatedProduct);
//assert
Assert.True(updated);
Assert.Equal(1.50, set.First(p => p.Id == "p1").RetailPrice);
}
public void SelectById_ProductId_ReturnsProduct()
{
//arrange
var productRepository = new JsonProductRepository(set);
Product product = new Product("p1", "Pedigree Chum", 0.70, 1.42);
//act
Product retrievedProduct = productRepository.SelectById("p1");
//assert
Assert.NotNull(retrievedProduct);
Assert.Equal(product, retrievedProduct);
}
public void SelectAll_ShouldReturnCollectionOfProducts()
{
//arrange
Mock <IProductSerializer> serializer = new Mock <IProductSerializer>();
HashSet <Product> set = new HashSet <Product> {
new Product("p1", "Pedigree Chum", 0.70, 1.42),
new Product("p2", "Knife", 0.60, 1.31)
};
serializer.Setup(s => s.ReadProducts()).Returns(set);
var productRepository = new JsonProductRepository(serializer.Object);
//act
ICollection <Product> products = productRepository.SelectAll();
//assert
serializer.Verify(s => s.ReadProducts());
Assert.Equal(set, products);
}
public void Create_CallsWriteProductMethodOfSerializer()
{
//arrange
Mock <IProductSerializer> serializer = new Mock <IProductSerializer>();
HashSet <Product> set = new HashSet <Product> {
new Product("p1", "Pedigree Chum", 0.70, 1.42),
new Product("p2", "Knife", 0.60, 1.31)
};
serializer.Setup(s => s.ReadProducts()).Returns(set);
var productRepository = new JsonProductRepository(serializer.Object);
Product product = new Product("p11", "Shark cage", 400);
//act
bool created = productRepository.Create(product);
//assert
serializer.Verify(s => s.WriteProducts(It.IsAny <ISet <Product> >()));
}
public void JsonSerializationTest()
{
//arrange
string path = @"C:\Users\Public\Documents\products.json";
File.Delete(path); //If the file to be deleted does not exist, no exception is thrown.
JsonProductRepository productRepository = new JsonProductRepository();
Product product1 = new Product("p1", "Pedigree Chum", 0.70, 1.42);
Product product2 = new Product("p2", "Fork", 0.60, 1.31);
//serializes product collection
bool created1 = productRepository.Create(product1);
bool created2 = productRepository.Create(product2);
//deserializes product collection
productRepository = new JsonProductRepository();
//assert
Assert.True(productRepository.SelectAll().Contains(product1));
Assert.Equal(2, productRepository.SelectAll().Count);
}
