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)));
}
public void Parse_WhenStringPresentsValidIsbnCode_ReturnsInstance_2()
{
// Arrange
// Act
var isbn = IsbnCode.Parse("979-10-19-01092-3"); // fictional code
// Assert
Assert.That(isbn.Flag, Is.EqualTo(Digits.Of("979")));
Assert.That(isbn.Group, Is.EqualTo(Digits.Of("10")));
Assert.That(isbn.Publisher, Is.EqualTo(Digits.Of("19")));
Assert.That(isbn.Title, Is.EqualTo(Digits.Of("01092")));
Assert.That(isbn.ToString(), Is.EqualTo("ISBN-13 979-10-19-01092-3"));
Assert.That(isbn.CheckDigit, Is.EqualTo('3'));
}
public void ToString_Styles_ReturnsStringHasSpecifiedStyles()
{
// Arrange
var str = "ISBN-13 978-4-650-01092-3";
var isbn = IsbnCode.Parse(str);
// Act
var style0 = isbn.ToString(IsbnCodeStyles.AsIsbn10Code);
var style1 = isbn.ToString(IsbnCodeStyles.WithHyphens);
var style2 = isbn.ToString(IsbnCodeStyles.WithIsbnLength);
var style3 = isbn.ToString(IsbnCodeStyles.WithIsbnPrefix);
var style4 = isbn.ToString(IsbnCodeStyles.WithSpaceAfterPrefix);
var style5 = isbn.ToString(IsbnCodeStyles.WithIsbnPrefix | IsbnCodeStyles.WithIsbnLength);
var style6 = isbn.ToString(IsbnCodeStyles.WithIsbnPrefix | IsbnCodeStyles.WithSpaceAfterPrefix);
var style7 = isbn.ToString(IsbnCodeStyles.WithIsbnPrefix | IsbnCodeStyles.WithIsbnLength
| IsbnCodeStyles.WithSpaceAfterPrefix);
var style8 = isbn.ToString(IsbnCodeStyles.WithIsbnPrefix | IsbnCodeStyles.WithIsbnLength
| IsbnCodeStyles.WithSpaceAfterPrefix | IsbnCodeStyles.WithHyphens);
var style9 = isbn.ToString(IsbnCodeStyles.WithIsbnPrefix | IsbnCodeStyles.WithIsbnLength
| IsbnCodeStyles.WithSpaceAfterPrefix | IsbnCodeStyles.WithHyphens | IsbnCodeStyles.AsIsbn10Code);
var style10 = isbn.ToString(IsbnCodeStyles.WithIsbnPrefix | IsbnCodeStyles.WithIsbnLength
| IsbnCodeStyles.WithSpaceAfterPrefix | IsbnCodeStyles.AsIsbn10Code);
var style11 = isbn.ToString(IsbnCodeStyles.WithIsbnPrefix
| IsbnCodeStyles.WithSpaceAfterPrefix | IsbnCodeStyles.AsIsbn10Code);
// Assert
Assert.That(style0, Is.EqualTo(str.Substring("ISBN-13 978-".Length).Replace("-", "")));
Assert.That(style1, Is.EqualTo(str.Substring("ISBN-13 ".Length)));
Assert.That(style2, Is.EqualTo("978" + style0));
Assert.That(style3, Is.EqualTo("ISBN" + style2));
Assert.That(style4, Is.EqualTo(style2));
Assert.That(style5, Is.EqualTo("ISBN-13 " + style2));
Assert.That(style6, Is.EqualTo("ISBN " + style2));
Assert.That(style7, Is.EqualTo("ISBN-13 " + style2));
Assert.That(style8, Is.EqualTo(str));
Assert.That(style9, Is.EqualTo("ISBN-10 " + str.Substring("ISBN-13 978-".Length)));
Assert.That(style10, Is.EqualTo("ISBN-10 " + style0));
Assert.That(style11, Is.EqualTo("ISBN " + style0));
}
public bool Equals_ComparesTwoInstances_BasedOnThoseValues(string v0, string v1)
{
return((v0 == null ? null : IsbnCode.Parse(v0))
== (v1 == null ? null : IsbnCode.Parse(v1)));
}
public void ToString_ReturnsString_WithPrefix_Length_Space_And_Hyphens()
{
Assert.That(IsbnCode.Parse("ISBN-13 978-4-650-01092-3").ToString(),
Is.EqualTo("ISBN-13 978-4-650-01092-3"));
}
public void ToString_Styles_WhenCodeStartsWith979_ButIsbn13StyleIsSpecified_ThrowsException()
{
Assert.That(() => IsbnCode.Parse("979-10-19-01092-3").ToString(IsbnCodeStyles.AsIsbn10Code),
Throws.InstanceOf <ArgumentException>());
}
