public void Given_instances_with_the_same_KeyCode_When_CompareTo_is_called_Then_result_should_be_0() { // Arrange. Enumeration enumeration = EmployeeType.Permanent; Enumeration otherEnumeration = EmployeeType.Permanent; // Act. int result = enumeration.CompareTo(otherEnumeration); // Assert. result.Should().Be(0); }