63ddef021d
git-svn-id: file:///srv/devel/repo-conversion/nusu@287 d2e56fa2-650e-0410-a79f-9358c0239efd
85 lines
2.5 KiB
C#
85 lines
2.5 KiB
C#
#region CPL License
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/*
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Nuclex Framework
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Copyright (C) 2002-2013 Nuclex Development Labs
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This library is free software; you can redistribute it and/or
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modify it under the terms of the IBM Common Public License as
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published by the IBM Corporation; either version 1.0 of the
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License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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IBM Common Public License for more details.
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You should have received a copy of the IBM Common Public
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License along with this library
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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#if UNITTEST
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using NUnit.Framework;
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namespace Nuclex.Support.Collections {
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/// <summary>Unit Test for the Variegator multi dictionary</summary>
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[TestFixture]
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internal class VariegatorTest {
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/// <summary>
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/// Tests whether the default constructor of the reverse comparer works
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/// </summary>
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[Test]
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public void InstancesCanBeCreated() {
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new Variegator<int, string>();
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}
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/// <summary>
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/// Verifies that querying for a missing value leads to an exception being thrown
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/// </summary>
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[Test]
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public void QueryingMissingValueThrowsException() {
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var variegator = new Variegator<int, string>();
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Assert.Throws<KeyNotFoundException>(
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() => {
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variegator.Get(123);
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}
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);
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}
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/// <summary>
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/// Verifies that the variegator resolves ambiguous matches according to its design
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/// </summary>
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[Test]
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public void AmbiguityResolvesToLeastRecentValue() {
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var variegator = new Variegator<int, string>();
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variegator.Add(1, "one");
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variegator.Add(1, "eins");
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string first = variegator.Get(1);
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string second = variegator.Get(1);
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// The variegator should have selected the first value by random and then
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// returned the other value on the second query
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Assert.AreNotEqual(first, second);
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// Now the variegator should return the first value again because it is
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// the least recently used value
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Assert.AreEqual(first, variegator.Get(1));
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// Repeating the query, the second should be returned again because now
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// it has become the least recently used value
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Assert.AreEqual(second, variegator.Get(1));
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}
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}
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} // namespace Nuclex.Support.Collections
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#endif // UNITTEST
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