public void ParseFail(string text)
{
var pu1 = PrivateUseSubtags.TryParse(text);
Assert.That(pu1.HasValue, Is.False);
PrivateUseSubtags pu2;
Assert.That(PrivateUseSubtags.TryParse(text, out pu2), Is.False);
Assert.Throws <FormatException>(() => PrivateUseSubtags.Parse(text));
}
public void TryParse(string text, string[] subtags)
{
var pu1 = PrivateUseSubtags.TryParse(text);
Assert.That(pu1.Value, Is.EquivalentTo(subtags));
PrivateUseSubtags pu2;
Assert.That(PrivateUseSubtags.TryParse(text, out pu2), Is.True);
Assert.That(pu2, Is.EquivalentTo(subtags));
Assert.That(pu1, Is.EqualTo(pu2));
}