Trinity of test - Moq

TrinityTestMoq.cs

[Fact]
public void Basic_Unit_Test()
{
    var mockRepo = new Mock<IMyRepo>();
    mockRepo.Setup(foo => foo.GetSomething(It.IsAny<int>())).Returns("Something");
    var serviceUnderTest = new MyUpperService(mockRepo);
    var result = serviceUnderTest.MakeUpper();
    Assert.Equal("SOMETHING",result);
}