[Fact] public void Test5_custom() => Assert.Equal( MathS.Interval(4.5, true, "6", false), (4.5, true, "6", false).ToInterval() );
[Fact] public void Test6() => Assert.Equal( MathS.Interval("6", 3), ("6", 3).ToInterval() );
[Fact] public void Test4() => Assert.Equal( MathS.Interval(4.5, 4.5), (4.5, 4.5).ToInterval() );
[Fact] public void Test5() => Assert.Equal( MathS.Interval(4.5, "6"), (4.5, "6").ToInterval() );
[Fact] public void Test2() => Assert.Equal( MathS.Interval(3, "6"), (3, "6").ToInterval() );
[Fact] public void Test1_custom() => Assert.Equal( MathS.Interval(3, true, 4.5, false), (3, true, 4.5, false).ToInterval() );
[Fact] public void Test0() => Assert.Equal( MathS.Interval(3, 3), (3, 3).ToInterval() );
[Fact] public void Test7() => Assert.Equal( MathS.Interval("6", 4.5), ("6", 4.5).ToInterval() );
[Fact] public void Test6_custom() => Assert.Equal( MathS.Interval("6", true, 3, false), ("6", true, 3, false).ToInterval() );