Unit testing business logic on a service layer

I´m new on unit testing. I am developing a MVC project with a Service Layer where I do all business logic and access to database (through repository pattern)

I create a project to unit test my business logic, like that:

Service layer example logic I want to test:

public static bool HasPermissionToSomething(MyDomain domain)
{
    if((domain.prop1 == true || domain.prop3 == false) && domain.prop2 == false)
         return true;

    return false;      
}

So I created a unit test like that (using XUnit)

[Fact]
public void HasPermissionToSomethingTest()
{
    var domain = MockDomain();

    var hasPermission = MyService.HasPermissionToSomething(domain);

    Assert.Equal(hasPermission, true);
}

Is that a good approach to test my service layer? Is my test a good one?

Thanks