CODEWITHSUNDEEP
c#unit-testingnunitmoq
nozzleman
nozzleman

Reputation: 9669

Can not resolve symbol of mocked object

So to learn more about unit tests and mocking i created the following simple interface which i want to mock and test in my unit test:

namespace TestProjekt
{
    public interface ICsvFile
    {
        string FileName { get; }

        int GetFileSize();
    }
}

and the a test using NUnit and Moq

namespace NUnitTests
{
    using Moq;
    using NUnit.Framework;
    using TestProjekt;

    [TestFixture]
    public class UnitTests1
    {

        private const string FILENAME = "0030001744_14224429_valuereport_20140527000012_1104.csv";


        private const int FILESIZE = 155;

        [Test]
        public void ExampleTest()
        {
            var file = new Mock<ICsvFile>();
            file.Setup(m => m.GetFileSize()).Returns(FILESIZE);
            file.SetupGet(m => m.FileName).Returns(FILENAME);

            Assert.AreEqual(FILENAME, file.FileName);
            Assert.AreEqual(FILESIZE, file.GetFileSize);
        }
    }
}

I made this based on a Tutorial i found online and quite interesting. The Problem is, that Visual Studio cant resolve the Method and Property or anything else i setup on the mocked object.

All dlls are referenced correctly. It must be a super simply thing but i just cant figure it out. Thanks in advance!

Upvotes: 1

Views: 2437

Answers (1)

Jin-Wook Chung
Jin-Wook Chung

Reputation: 4344

I guess that you encountered a compile error. The reason is that you used the properties directly from the instance of the Mock<ICsvFile> type. Instead, you should use like file.Object.FileName. The Object property represents the mocked instance of ICsvFile.

Modify your code as the following.

Assert.AreEqual(FILENAME, file.Object.FileName);
Assert.AreEqual(FILESIZE, file.Object.GetFileSize);

Upvotes: 3

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