public void LanguageItem_ParseHttpLanguageHeader()
{
LanguageItem[] languageItems;
languageItems = LanguageItem.ParseHttpLanguageHeader("de;q=0.5");
Assert.AreEqual(2, languageItems.Length);
Assert.AreEqual(null, languageItems[0].LanguageTag);
Assert.AreEqual(2, languageItems[0].Quality);
Assert.AreEqual(0, languageItems[0].Ordinal);
Assert.AreEqual(0, languageItems[0].UseCount);
Assert.AreEqual("de", languageItems[1].LanguageTag.ToString());
Assert.AreEqual(0.5, languageItems[1].Quality);
Assert.AreEqual(1, languageItems[1].Ordinal);
Assert.AreEqual(0, languageItems[1].UseCount);
languageItems = LanguageItem.ParseHttpLanguageHeader("de;q=0.5, en;q=1");
Assert.AreEqual(3, languageItems.Length);
Assert.AreEqual(null, languageItems[0].LanguageTag);
Assert.AreEqual(2, languageItems[0].Quality);
Assert.AreEqual(0, languageItems[0].Ordinal);
Assert.AreEqual(0, languageItems[0].UseCount);
Assert.AreEqual("en", languageItems[1].LanguageTag.ToString());
Assert.AreEqual(1, languageItems[1].Quality);
Assert.AreEqual(2, languageItems[1].Ordinal);
Assert.AreEqual(0, languageItems[1].UseCount);
Assert.AreEqual("de", languageItems[2].LanguageTag.ToString());
Assert.AreEqual(0.5, languageItems[2].Quality);
Assert.AreEqual(1, languageItems[2].Ordinal);
Assert.AreEqual(0, languageItems[2].UseCount);
languageItems = LanguageItem.ParseHttpLanguageHeader("de;q=0.5, en;q=1, fr-FR;q=0");
Assert.AreEqual(4, languageItems.Length);
Assert.AreEqual(null, languageItems[0].LanguageTag);
Assert.AreEqual(2, languageItems[0].Quality);
Assert.AreEqual(0, languageItems[0].Ordinal);
Assert.AreEqual(0, languageItems[0].UseCount);
Assert.AreEqual("en", languageItems[1].LanguageTag.ToString());
Assert.AreEqual(1, languageItems[1].Quality);
Assert.AreEqual(2, languageItems[1].Ordinal);
Assert.AreEqual(0, languageItems[1].UseCount);
Assert.AreEqual("de", languageItems[2].LanguageTag.ToString());
Assert.AreEqual(0.5, languageItems[2].Quality);
Assert.AreEqual(1, languageItems[2].Ordinal);
Assert.AreEqual(0, languageItems[2].UseCount);
Assert.AreEqual("fr-FR", languageItems[3].LanguageTag.ToString());
Assert.AreEqual(0, languageItems[3].Quality);
Assert.AreEqual(3, languageItems[3].Ordinal);
Assert.AreEqual(0, languageItems[3].UseCount);
languageItems = LanguageItem.ParseHttpLanguageHeader("de;q=0.5, en;q=1, fr-FR;q=0,ga;q=0.5");
Assert.AreEqual(5, languageItems.Length);
Assert.AreEqual(null, languageItems[0].LanguageTag);
Assert.AreEqual(2, languageItems[0].Quality);
Assert.AreEqual(0, languageItems[0].Ordinal);
Assert.AreEqual(0, languageItems[0].UseCount);
Assert.AreEqual("en", languageItems[1].LanguageTag.ToString());
Assert.AreEqual(1, languageItems[1].Quality);
Assert.AreEqual(2, languageItems[1].Ordinal);
Assert.AreEqual(0, languageItems[1].UseCount);
Assert.AreEqual("de", languageItems[2].LanguageTag.ToString());
Assert.AreEqual(0.5, languageItems[2].Quality);
Assert.AreEqual(1, languageItems[2].Ordinal);
Assert.AreEqual(0, languageItems[2].UseCount);
Assert.AreEqual("ga", languageItems[3].LanguageTag.ToString());
Assert.AreEqual(0.5, languageItems[3].Quality);
Assert.AreEqual(4, languageItems[3].Ordinal);
Assert.AreEqual(0, languageItems[3].UseCount);
Assert.AreEqual("fr-FR", languageItems[4].LanguageTag.ToString());
Assert.AreEqual(0, languageItems[4].Quality);
Assert.AreEqual(3, languageItems[4].Ordinal);
Assert.AreEqual(0, languageItems[4].UseCount);
languageItems = LanguageItem.ParseHttpLanguageHeader("de;q=0.5, en;q=1, fr-FR;q=0,ga;q=0.5", new LanguageTag("en-CA"));
Assert.AreEqual(5, languageItems.Length);
Assert.AreEqual("en-CA", languageItems[0].LanguageTag.ToString());
Assert.AreEqual(2, languageItems[0].Quality);
Assert.AreEqual(0, languageItems[0].Ordinal);
Assert.AreEqual(0, languageItems[0].UseCount);
Assert.AreEqual("en", languageItems[1].LanguageTag.ToString());
Assert.AreEqual(1, languageItems[1].Quality);
Assert.AreEqual(2, languageItems[1].Ordinal);
Assert.AreEqual(0, languageItems[1].UseCount);
Assert.AreEqual("de", languageItems[2].LanguageTag.ToString());
Assert.AreEqual(0.5, languageItems[2].Quality);
Assert.AreEqual(1, languageItems[2].Ordinal);
Assert.AreEqual(0, languageItems[2].UseCount);
Assert.AreEqual("ga", languageItems[3].LanguageTag.ToString());
Assert.AreEqual(0.5, languageItems[3].Quality);
Assert.AreEqual(4, languageItems[3].Ordinal);
Assert.AreEqual(0, languageItems[3].UseCount);
Assert.AreEqual("fr-FR", languageItems[4].LanguageTag.ToString());
Assert.AreEqual(0, languageItems[4].Quality);
Assert.AreEqual(3, languageItems[4].Ordinal);
Assert.AreEqual(0, languageItems[4].UseCount);
}
public void LanguageItem_CompactString()
{
LanguageItem[] languageItems;
string strCompactString;
// PAL set.
languageItems = LanguageItem.ParseHttpLanguageHeader("de;q=0.5, en;q=1, fr-FR;q=0,ga;q=0.5", new LanguageTag("en-CA"));
for (int i = 0; i < 2; ++i)
{
Assert.AreEqual(5, languageItems.Length);
Assert.AreEqual("en-CA", languageItems[0].LanguageTag.ToString());
Assert.AreEqual(2, languageItems[0].Quality);
Assert.AreEqual(0, languageItems[0].Ordinal);
Assert.AreEqual(0, languageItems[0].UseCount);
Assert.AreEqual("en", languageItems[1].LanguageTag.ToString());
Assert.AreEqual(1, languageItems[1].Quality);
Assert.AreEqual(2, languageItems[1].Ordinal);
Assert.AreEqual(0, languageItems[1].UseCount);
Assert.AreEqual("de", languageItems[2].LanguageTag.ToString());
Assert.AreEqual(0.5, languageItems[2].Quality);
Assert.AreEqual(1, languageItems[2].Ordinal);
Assert.AreEqual(0, languageItems[2].UseCount);
Assert.AreEqual("ga", languageItems[3].LanguageTag.ToString());
Assert.AreEqual(0.5, languageItems[3].Quality);
Assert.AreEqual(4, languageItems[3].Ordinal);
Assert.AreEqual(0, languageItems[3].UseCount);
Assert.AreEqual("fr-FR", languageItems[4].LanguageTag.ToString());
Assert.AreEqual(0, languageItems[4].Quality);
Assert.AreEqual(3, languageItems[4].Ordinal);
Assert.AreEqual(0, languageItems[4].UseCount);
// To compact string.
strCompactString = LanguageItem.DehydrateLanguageItemsToString(languageItems);
Assert.AreEqual("en-CA;q=2,de;q=0.5,en;q=1,fr-FR;q=0,ga;q=0.5", strCompactString);
// From compact string.
languageItems = LanguageItem.HydrateLanguageItemsFromString(strCompactString);
}
// PAL not set.
languageItems = LanguageItem.ParseHttpLanguageHeader("de;q=0.5, en;q=1, fr-FR;q=0,ga;q=0.5", null); // <--- null for the PAL langtag
for (int i = 0; i < 2; ++i)
{
Assert.AreEqual(5, languageItems.Length);
Assert.AreEqual(null, languageItems[0].LanguageTag);
Assert.AreEqual(2, languageItems[0].Quality);
Assert.AreEqual(0, languageItems[0].Ordinal);
Assert.AreEqual(0, languageItems[0].UseCount);
Assert.AreEqual("en", languageItems[1].LanguageTag.ToString());
Assert.AreEqual(1, languageItems[1].Quality);
Assert.AreEqual(2, languageItems[1].Ordinal);
Assert.AreEqual(0, languageItems[1].UseCount);
Assert.AreEqual("de", languageItems[2].LanguageTag.ToString());
Assert.AreEqual(0.5, languageItems[2].Quality);
Assert.AreEqual(1, languageItems[2].Ordinal);
Assert.AreEqual(0, languageItems[2].UseCount);
Assert.AreEqual("ga", languageItems[3].LanguageTag.ToString());
Assert.AreEqual(0.5, languageItems[3].Quality);
Assert.AreEqual(4, languageItems[3].Ordinal);
Assert.AreEqual(0, languageItems[3].UseCount);
Assert.AreEqual("fr-FR", languageItems[4].LanguageTag.ToString());
Assert.AreEqual(0, languageItems[4].Quality);
Assert.AreEqual(3, languageItems[4].Ordinal);
Assert.AreEqual(0, languageItems[4].UseCount);
// To compact string.
strCompactString = LanguageItem.DehydrateLanguageItemsToString(languageItems);
Assert.AreEqual("?;q=2,de;q=0.5,en;q=1,fr-FR;q=0,ga;q=0.5", strCompactString); // <--- '?' for the PAL langtag
// From compact string.
languageItems = LanguageItem.HydrateLanguageItemsFromString(strCompactString);
}
// Hydration of null/empty language items string.
// Should result in a single-item language item array representing a null PAL.
languageItems = LanguageItem.HydrateLanguageItemsFromString(null);
Assert.AreEqual(1, languageItems.Length);
Assert.AreEqual(null, languageItems[0].LanguageTag);
Assert.AreEqual(2, languageItems[0].Quality);
Assert.AreEqual(0, languageItems[0].Ordinal);
Assert.AreEqual(0, languageItems[0].UseCount);
}