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// ComparerTest
using System;
using System.Collections;
using NUnit.Framework;
namespace MonoTests.System.Collections {
/// <summary>Comparer test suite.</summary>
public class ComparerTest : TestCase {
protected override void SetUp ()
{
}
public void TestDefaultInstance ()
{
// Make sure the instance returned by Default
// is really a Comparer.
Assert((Comparer.Default as Comparer) != null);
}
public void TestCompare ()
{
Comparer c = Comparer.Default;
bool thrown = false;
try {
c.Compare (new Object (), new Object ());
} catch (ArgumentException) {
thrown = true;
}
Assert("ArgumentException expected", thrown);
Assert(c.Compare (1, 2) < 0);
Assert(c.Compare (2, 2) == 0);
Assert(c.Compare (3, 2) > 0);
}
[Test]
public void Invariant ()
{
Comparer c = Comparer.DefaultInvariant;
Assert (c.Compare ("a", "A") > 0);
}
}
}
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