CODEWITHSUNDEEP
c#imageunit-testingmockingmoq
James
James

Reputation: 356

Drawing.Image Not allowed in Moq or Unit Test?

I'm attempting to unit test a method that loads an Image (of type Image, not the file path) onto a Virtual machine stack.

I have a Verify call that looks like this:

mockVM.Verify(q => q.Stack.Push(It.IsAny<Image>()), Times.AtLeastOnce());

In order to check wether the following Stack.Push call occurred in the method under test. The pertinent parts of this method are thus:

Image newImage = Image.FromFile(@"" + Operands[0]);
VirtualMachine.Stack.Push(newImage);
Console.WriteLine("Hit loadimage");

In the class under test I am using System.Drawing perfectly fine in order to use Image as a type.

However in the Unit test code, despite using System.Drawing or any variant, I get an error under Image in It.IsAny<Image>().

The type or namespace name 'Image' could not be found (are you missing a using directive or an assembly reference?)

I want to verify that an object of type image was placed on the stack, but not being able to use Image as a type is a problem and I can't progress.

Is there some reason why I can't use System.Drawing in the unit test? Or is there an easy way to achieve my aim.

Upvotes: 2

Views: 1303

Answers (1)

Kritner
Kritner

Reputation: 13765

System.Drawing is likely not an included by default as a reference of your unit test project, where it would most likely be included by default for other project types.

Ensure you have a reference to System.Drawing in your unit test project, then you should be able to resolve Image after using the appropriate namespace.

Example using default references for a new project and unit test project:

enter image description here

Upvotes: 2

Related Questions