public void Test_ValidateIsin()
{
// Arrange
string message;
const string isin = "AB1234";
//Act
var isValid = CompanyValidator.ValidateIsin(isin, out message);
//Assert
Assert.IsTrue(isValid);
}
public void Test_ValidateIsin_returnErroMessage()
{
// Arrange
string message;
const string isin = "A1234";
//Act
var isValid = CompanyValidator.ValidateIsin(isin, out message);
//Assert
Assert.IsFalse(isValid);
Assert.AreEqual(CompanyValidator.IsinErrorMessage, message, nameof(message));
}