public void TestIsIssn()
{
var isIssn = ArticleNumberHelper.IsValidIssn(null);
Assert.AreEqual(isIssn, false);
isIssn = ArticleNumberHelper.IsValidIssn(string.Empty);
Assert.AreEqual(isIssn, false);
isIssn = ArticleNumberHelper.IsValidIssn("2229-5518");
Assert.AreEqual(isIssn, true);
isIssn = ArticleNumberHelper.IsValidIssn("1365-201X");
Assert.AreEqual(isIssn, true);
isIssn = ArticleNumberHelper.IsValidIssn("1911-1479");
Assert.AreEqual(isIssn, true);
isIssn = ArticleNumberHelper.IsValidIssn("2049-3630");
Assert.AreEqual(isIssn, true);
isIssn = ArticleNumberHelper.IsValidIssn("XXXX-0000");
Assert.AreEqual(isIssn, false);
isIssn = ArticleNumberHelper.IsValidIssn("0000-000X");
Assert.AreEqual(isIssn, false);
isIssn = ArticleNumberHelper.IsValidIssn("0000-00X0");
Assert.AreEqual(isIssn, false);
}
public void IsValidIssn(bool expected, string input)
{
// Act
var actual = ArticleNumberHelper.IsValidIssn(input);
// Assert
Assert.Equal(expected, actual);
}