public void IsFamilyTelNumberTest() { var values = new Values(); Assert.IsFalse(values.IsFamilyTelNumber("090-1234-1234")); values.AppendFamilyTelNumber("090-1234-1234"); Assert.IsTrue(values.IsFamilyTelNumber("090-1234-1234")); Assert.IsFalse(values.IsFamilyTelNumber("090-1234-4321")); }