public void TestIsIsbn()
{
var isIsbn10 = ArticleNumberHelper.IsValidIsbn10(null);
Assert.AreEqual(isIsbn10, false);
isIsbn10 = ArticleNumberHelper.IsValidIsbn10(string.Empty);
Assert.AreEqual(isIsbn10, false);
isIsbn10 = ArticleNumberHelper.IsValidIsbn10("3551559015");
Assert.AreEqual(isIsbn10, true);
var isIsbn13 = ArticleNumberHelper.IsValidIsbn13(null);
Assert.AreEqual(isIsbn13, false);
isIsbn13 = ArticleNumberHelper.IsValidIsbn13(string.Empty);
Assert.AreEqual(isIsbn13, false);
isIsbn13 = ArticleNumberHelper.IsValidIsbn13("978-3551559012");
Assert.AreEqual(isIsbn13, true);
isIsbn13 = ArticleNumberHelper.IsValidIsbn13("9783551559012");
Assert.AreEqual(isIsbn13, true);
}
public void IsValidIsbn10(bool expected, string input)
{
// Act
var actual = ArticleNumberHelper.IsValidIsbn10(input);
// Assert
Assert.Equal(expected, actual);
}