BracerLib/Assets/Scripts/Tests/Objects/ObjectMockTests.cs

using System.Collections;
using Moq;
using NUnit.Framework;
using UnityEngine;

namespace BracerLib.Tests.Objects
{
    public interface ITester
    {
        void Test();
    }

    public class Tester : ITester
    {
        public void Test() {}
    }

    public class MockComponent : MonoBehaviour
    {
        private ITester tester;

        public void DoTest()
        {
            tester.Test();
        }
    }

    public class ObjectMockTests : TestBase
    {
        private MockComponent mockComponent;
        private Mock<ITester> testerMock;

        protected override IEnumerator UnityOneTimeSetUp()
        {
            testerMock = new Mock<ITester>();

            var go = new GameObject("mock test obj");
            mockComponent = go.AddComponent<MockComponent>();
            RegisterOneTimeTestObject(go);
            SetReflectedValue(mockComponent, "tester", testerMock.Object);

            yield return null;
        }

        [Test]
        public void TestMock()
        {
            testerMock.Setup(x => x.Test());

            mockComponent.DoTest();

            testerMock.Verify(x => x.Test(), Times.Once);
        }
    }
}