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 Empty()
{
var empty = new ExtensionSubtag();
Assert.Throws <InvalidOperationException>(() => empty.ToString());
Assert.Throws <InvalidOperationException>(() => empty.Singleton.GetHashCode());
}
public void Playground()
{
var en = Language.EN; // English language
var zh = Language.ZH; // Chinese language
var latn = Script.Latn; // Latin script
var hans = Script.Hans; // Han (Simplified variant)
var tw = Region.TW; // Taiwan, Province of China
// tag zh-Hans-TW
var tag1 = new LanguageTag(zh, hans, tw);
// tag zh-Latn-TW-Pinyin
var tag2 = new LanguageTag(zh, latn, tw, new [] { Variant.Pinyin });
// tag en-US-x-twain
var tag3 = new LanguageTag(en, Region.US, ExtensionSubtag.ForPrivateUse("twain"));
// tag de-DE-u-co-phonebk
var tag4 = new LanguageTag(Language.DE, Region.DE, new [] { new ExtensionSubtag('u', "co", "phonebk") });
var tag5 = LanguageTag.Parse("ru");
var tag6 = LanguageTag.Parse("zh-Hans-TW");
var tag7 = LanguageTag.Parse("en-GB-scotland");
Assert.True(tag1 == tag6);
// zh-Hans-TW -> zh-Hans
var tag8 = tag6.Take(LanguageTag.Field.Language | LanguageTag.Field.Script);
// zh-Hans is subset of zh-Hans-TW
Assert.True(tag8.IsSubsetOf(tag6));
}
public void Empty()
{
var empty = new ExtensionSubtag();
Assert.IsTrue(empty.IsEmpty);
Assert.AreEqual("", empty.ToString());
Assert.That(empty.ToArray(), Is.Empty);
Assert.Throws <InvalidOperationException>(() => empty.Singleton.GetHashCode());
}
public void Constructor_LangVarPr()
{
var tag1 = new LanguageTag(Language.RU, new [] { Variant.Petr1708 }, ExtensionSubtag.ForPrivateUse("aaa"));
var tag2 = new LanguageTag(Language.RU, null, null, new [] { Variant.Petr1708 }, new ExtensionSubtag[] {}, ExtensionSubtag.ForPrivateUse("aaa"));
var expected = LanguageTag.Parse("ru-Petr1708-x-aaa");
Assert.That(tag1, Is.EqualTo(expected));
Assert.That(tag2, Is.EqualTo(expected));
}
public void Constructor_LangScrRegPr()
{
var tag1 = new LanguageTag(Language.RU, Script.Latn, Region.RU, ExtensionSubtag.ForPrivateUse("aaa"));
var tag2 = new LanguageTag(Language.RU, Script.Latn, Region.RU, new Variant[] {}, new ExtensionSubtag[] {}, ExtensionSubtag.ForPrivateUse("aaa"));
var expected = LanguageTag.Parse("ru-Latn-RU-x-aaa");
Assert.That(tag1, Is.EqualTo(expected));
Assert.That(tag2, Is.EqualTo(expected));
}
public void ParseFail(string text)
{
var pu1 = ExtensionSubtag.TryParse(text);
Assert.That(pu1.HasValue, Is.False);
Assert.That(ExtensionSubtag.TryParse(text, out _), Is.False);
Assert.Throws <FormatException>(() => ExtensionSubtag.Parse(text));
}
public void Equals()
{
var ext1 = new ExtensionSubtag('a', "aaa");
var ext2 = new ExtensionSubtag('a', "aaa");
var ext3 = new ExtensionSubtag('b', "aaa");
var ext4 = new ExtensionSubtag('b', "bbb");
Assert.IsTrue(ext1.Equals(ext1));
Assert.IsTrue(ext1.Equals(ext2));
Assert.IsFalse(ext2.Equals(ext3));
Assert.IsFalse(ext3.Equals(ext4));
Assert.IsTrue(ext1 != ext3);
Assert.IsFalse(ext1 == ext3);
}
public void Equals()
{
var e1 = new ExtensionSubtag();
var e2 = (object)e1;
var ext1 = new ExtensionSubtag('a', "aaa");
var ext2 = new ExtensionSubtag('a', "aaa");
var ext3 = new ExtensionSubtag('b', "aaa");
var ext4 = new ExtensionSubtag('x', "bbb");
Assert.IsFalse(e1.Equals(null));
Assert.IsTrue(e1.Equals(e2));
Assert.AreEqual(e1, e1);
Assert.AreNotEqual(e1, ext1);
Assert.IsTrue(ext1.Equals(ext1));
Assert.IsTrue(ext1.Equals(ext2));
Assert.IsFalse(ext2.Equals(ext3));
Assert.IsFalse(ext3.Equals(ext4));
Assert.IsTrue(ext1 != ext3);
Assert.IsFalse(ext1 == ext3);
}
public void Contains(string?subtagText, string tag, bool expected)
{
var pu = subtagText == null ? new ExtensionSubtag() : ExtensionSubtag.Parse(subtagText);
Assert.That(pu.Contains(tag), Is.EqualTo(expected));
}
public void Enumerate(string[] subtags)
{
var ext = new ExtensionSubtag('a', subtags);
Assert.That(ext, Is.EquivalentTo(subtags));
}
public void PrivateUse()
{
var ext = ExtensionSubtag.ForPrivateUse("aaa");
Assert.IsTrue(ext.PrivateUse);
}
public void ToString(char singleton, string[] subtags, string expected)
{
var ext = new ExtensionSubtag(singleton, subtags);
Assert.AreEqual(expected, ext.ToString());
}
public void Constructor_LangExrPr()
{
var tag1 = new LanguageTag(Language.RU, new [] { new ExtensionSubtag('a', "aaa") }, ExtensionSubtag.ForPrivateUse("aaa"));
var tag2 = new LanguageTag(Language.RU, null, null, new Variant[] {}, new [] { new ExtensionSubtag('a', "aaa") }, ExtensionSubtag.ForPrivateUse("aaa"));
var expected = LanguageTag.Parse("ru-a-aaa-x-aaa");
Assert.That(tag1, Is.EqualTo(expected));
Assert.That(tag2, Is.EqualTo(expected));
}
public void Constructor_LangScrRegVarExrPr()
{
var tag1 = new LanguageTag(Language.RU, Script.Latn, Region.RU, new [] { Variant.Petr1708 }, new [] { new ExtensionSubtag('a', "aaa") }, ExtensionSubtag.ForPrivateUse("aaa"));
var tag2 = new LanguageTag(Language.RU, Script.Latn, Region.RU, new [] { Variant.Petr1708 }, new [] { new ExtensionSubtag('a', "aaa") }, ExtensionSubtag.ForPrivateUse("aaa"));
var expected = LanguageTag.Parse("ru-Latn-RU-Petr1708-a-aaa-x-aaa");
Assert.That(tag1, Is.EqualTo(expected));
Assert.That(tag2, Is.EqualTo(expected));
}