public void IsWellKnownOrdinalComparer_TestCases()
{
CompareInfo ci_enUS = CompareInfo.GetCompareInfo("en-US");
// First, instantiate and test the comparers directly
RunTest(null, false, false);
RunTest(EqualityComparer <string> .Default, true, false); // EC<string>.Default is Ordinal-equivalent
RunTest(EqualityComparer <object> .Default, false, false); // EC<object>.Default isn't a string comparer
RunTest(StringComparer.Ordinal, true, false);
RunTest(StringComparer.OrdinalIgnoreCase, true, true);
RunTest(StringComparer.InvariantCulture, false, false); // not ordinal
RunTest(StringComparer.InvariantCultureIgnoreCase, false, false); // not ordinal
RunTest(GetNonRandomizedComparer("WrappedAroundDefaultComparer"), true, false); // EC<string>.Default is Ordinal-equivalent
RunTest(GetNonRandomizedComparer("WrappedAroundStringComparerOrdinal"), true, false);
RunTest(GetNonRandomizedComparer("WrappedAroundStringComparerOrdinalIgnoreCase"), true, true);
RunTest(new CustomStringComparer(), false, false); // not an inbox comparer
RunTest(ci_enUS.GetStringComparer(CompareOptions.None), false, false); // linguistic
RunTest(ci_enUS.GetStringComparer(CompareOptions.Ordinal), true, false);
RunTest(ci_enUS.GetStringComparer(CompareOptions.OrdinalIgnoreCase), true, true);
// Then, make sure that this API works with common collection types
RunTest(new Dictionary <string, object>().Comparer, true, false);
RunTest(new Dictionary <string, object>(StringComparer.Ordinal).Comparer, true, false);
RunTest(new Dictionary <string, object>(StringComparer.OrdinalIgnoreCase).Comparer, true, true);
RunTest(new Dictionary <string, object>(StringComparer.InvariantCulture).Comparer, false, false);
RunTest(new Dictionary <string, object>(StringComparer.InvariantCultureIgnoreCase).Comparer, false, false);
RunTest(new HashSet <string>().Comparer, true, false);
RunTest(new HashSet <string>(StringComparer.Ordinal).Comparer, true, false);
RunTest(new HashSet <string>(StringComparer.OrdinalIgnoreCase).Comparer, true, true);
RunTest(new HashSet <string>(StringComparer.InvariantCulture).Comparer, false, false);
RunTest(new HashSet <string>(StringComparer.InvariantCultureIgnoreCase).Comparer, false, false);
public static void CompareInfoThrows()
{
Assert.Throws <ArgumentNullException>("compareInfo", () => { CompareInfo info = null; info.GetStringComparer(CompareOptions.None); });
Assert.Throws <ArgumentException>("options", () => new CultureInfo("tr-TR").CompareInfo.GetStringComparer((CompareOptions)0xFFFF));
Assert.Throws <ArgumentException>("options", () => new CultureInfo("tr-TR").CompareInfo.GetStringComparer(CompareOptions.Ordinal | CompareOptions.IgnoreCase));
Assert.Throws <ArgumentException>("options", () => new CultureInfo("tr-TR").CompareInfo.GetStringComparer(CompareOptions.OrdinalIgnoreCase | CompareOptions.IgnoreCase));
Assert.Throws <ArgumentNullException>("obj", () => new CultureInfo("tr-TR").CompareInfo.GetStringComparer(CompareOptions.None).GetHashCode(null));
}
