public void ShouldNotConstructProperly() { var bitcoins = new[] { "1sTybTznstbwufxRe4iALvgHV1ZZYq5uT", "1GEYVPaaxyzarNbZTB5WFPVoxnx8ekyrgD", "1t7BwrqQyTN1NBTYdDTGq3jZwDLL6g8dg" }; var random = new[] { "1hgfZYq5uT", "1G NbZTB5WFYTRgD", "p1g", "" }; foreach (var address in bitcoins.Concat(random)) { var valid = PeercoinAddress.IsAddress(address); bool isnotValid = !valid; Assert.IsTrue(isnotValid); } }