public void TryParse_WhenStringDoesNotRepresentValidIsbnCode_ReturnsFalse(string s)
{
// Arrange
// Act
IsbnCode isbn;
bool result = IsbnCode.TryParse(s, out isbn);
// Assert
Assert.That(result, Is.False);
Assert.That(isbn, Is.Null);
}
[TestCase("97910-19-01092-3")] // fictional code
public void TryParse_WhenStringRepresentsValidIsbnCode_ReturnsTrue(string s)
{
// Arrange
// Act
IsbnCode isbn;
bool result = IsbnCode.TryParse(s, out isbn);
// Assert
Assert.That(result, Is.True);
Assert.That(isbn, Is.EqualTo(IsbnCode.Parse(s)));
}