public void CannotRetrieveImageDataForInvalidID()
{
// Arrange - create the mock repository
var mock = new Mock<IProductRepository>();
mock.Setup(m => m.Products).Returns(
new[] { new Product { ProductID = 1, Name = "P1" }, new Product { ProductID = 2, Name = "P2" } }.
AsQueryable());
// Arrange - create the controller
var target = new ProductController(mock.Object);
// Act - call the GetImage action method
ActionResult result = target.GetImage(100);
// Assert
Assert.IsNull(result);
}
public void CanRetrieveImageData()
{
// Arrange - create a Product with image data
var prod = new Product
{
ProductID = 2, Name = "Test", ImageData = new byte[] { }, ImageMimeType = "image/png"
};
// Arrange - create the mock repository
var mock = new Mock<IProductRepository>();
mock.Setup(m => m.Products).Returns(
new[] { new Product { ProductID = 1, Name = "P1" }, prod, new Product { ProductID = 3, Name = "P3" } }.
AsQueryable());
// Arrange - create the controller
var target = new ProductController(mock.Object);
// Act - call the GetImage action method
ActionResult result = target.GetImage(2);
// Assert
Assert.IsNotNull(result);
Assert.IsInstanceOfType(result, typeof(FileResult));
Assert.AreEqual(prod.ImageMimeType, ((FileResult)result).ContentType);
}
