public void AllowRange() { // Arrange var filter = new TextEncoderSettings(); filter.AllowRange(UnicodeRanges.LatinExtendedA); // Assert for (int i = 0; i < 0x0100; i++) { Assert.False(filter.IsCharacterAllowed((char)i)); } for (int i = 0x0100; i <= 0x017F; i++) { Assert.True(filter.IsCharacterAllowed((char)i)); } for (int i = 0x0180; i <= Char.MaxValue; i++) { Assert.False(filter.IsCharacterAllowed((char)i)); } }