public void SettingEnrollmentFor_WithAnEntity_ShouldChangeToSepcializedSecretary()
        {
            var school = new LocalSchool("Test", @"C:\Test");
            school.Specializations.Add<TestEntity>(FileType.File, null);

            var sut = new Enrollment
            {
                Secretary = new Secretary(),
                FileType = FileType.File,
                School = school
            };

            sut.For<TestEntity>();

            var secretary = sut.Secretary as Secretary<TestEntity>;

            Assert.NotNull(secretary);
            Assert.Equal(FileType.File, sut.FileType);
        }