public void TryParse(string text, char singleton, string[] subtags)
{
var pu1 = ExtensionSubtag.TryParse(text);
Assert.IsTrue(pu1.HasValue);
Assert.That(pu1 !.Value.Singleton, Is.EqualTo(singleton));
Assert.That(pu1, Is.EquivalentTo(subtags));
Assert.That(ExtensionSubtag.TryParse(text, out var pu2), Is.True);
Assert.That(pu2.Singleton, Is.EqualTo(singleton));
Assert.That(pu2, Is.EquivalentTo(subtags));
Assert.That(pu1, Is.EqualTo(pu2));
foreach (var language in TestContent.GetLanguages())
{
var languageTag = LanguageTag.TryParse($"{language}-{text}");
Assert.IsNotNull(languageTag);
if (singleton == 'x')
{
Assert.AreEqual(
languageTag !.Value.PrivateUse,
new ExtensionSubtag(singleton, subtags));
}
else
{
CollectionAssert.AreEqual(
languageTag !.Value.Extensions,
new[] { new ExtensionSubtag(singleton, subtags) });
}
}
}
public void TryParse_Fail(string text)
{
Assert.That(LanguageTag.TryParse(text).HasValue, Is.False);
var result = LanguageTag.TryParse(text, out var tag);
Assert.That(result, Is.False);
Assert.That(tag, Is.EqualTo(default(LanguageTag)));
}
public void TryParse_Success()
{
LanguageTag?tag1 = LanguageTag.TryParse("en-GB");
LanguageTag tag2;
var result = LanguageTag.TryParse("en-GB", out tag2);
Assert.That(result, Is.True);
Assert.That(tag1, Is.EqualTo(tag2));
}
public void ParseFromExtensionSubtagFail(string text)
{
foreach (var language in TestContent.GetLanguages())
{
var languageTag = LanguageTag.TryParse($"{language}-{text}");
if (languageTag.HasValue)
{
CollectionAssert.IsEmpty(languageTag.Value.Extensions);
}
}
}
public void ParseFromExtensionSubtag(string text, char singleton, string[] subtags)
{
foreach (var language in TestContent.GetLanguages())
{
var languageTag = LanguageTag.TryParse($"{language}-{text}");
Assert.IsNotNull(languageTag);
CollectionAssert.AreEqual(
languageTag !.Value.Extensions,
new[] { new ExtensionSubtag(singleton, subtags) });
}
}
private static Language parseLanguage(string text)
{
if (!LanguageTag.TryParse(text, out var languageTag))
{
throw new FormatException($"Cannot parse language from `{text}'");
}
if ((languageTag.Fields & ~LanguageTag.Field.Language) != 0)
{
throw new FormatException($"Tag contains more than just language `{text}'");
}
if (languageTag.Language != null)
{
return(languageTag.Language);
}
throw new FormatException($"Tag does not contain language `{text}'");
}
