o_19mgorv9t13a3ko71fev19l81mqa.pdf

[TestClass]
public class ImageTests {
[TestMethod]
public void Can_Retrieve_Image_Data() {
// Arrange - create a Product with image data
Product prod = new Product {
ProductID = 2,
Name = "Test",
ImageData = new byte[] { },
ImageMimeType = "image/png"
};
// Arrange - create the mock repository
Mock mock = new Mock();
mock.Setup(m => m.Products).Returns(new Product[] {
new Product {ProductID = 1, Name = "P1"},
prod,
new Product {ProductID = 3, Name = "P3"}
}.AsQueryable());
// Arrange - create the controller
ProductController 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);
}
[TestMethod]
public void Cannot_Retrieve_Image_Data_For_Invalid_ID() {
// Arrange - create the mock repository
Mock mock = new Mock();
mock.Setup(m => m.Products).Returns(new Product[] {
new Product {ProductID = 1, Name = "P1"},
new Product {ProductID = 2, Name = "P2"}
}.AsQueryable());
// Arrange - create the controller
ProductController target = new ProductController(mock.Object);
// Act - call the GetImage action method
ActionResult result = target.GetImage(100);
}
}
}
// Assert
Assert.IsNull(result);
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