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120 lines
3.3 KiB
C#
120 lines
3.3 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using System;
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using NUnit.Framework;
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using osu.Game.Rulesets.Difficulty.Utils;
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namespace osu.Game.Tests.NonVisual
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{
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[TestFixture]
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public class LimitedCapacityQueueTest
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{
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private const int capacity = 3;
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private LimitedCapacityQueue<int> queue;
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[SetUp]
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public void SetUp()
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{
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queue = new LimitedCapacityQueue<int>(capacity);
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}
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[Test]
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public void TestEmptyQueue()
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{
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Assert.AreEqual(0, queue.Count);
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Assert.Throws<ArgumentOutOfRangeException>(() => _ = queue[0]);
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Assert.Throws<InvalidOperationException>(() => _ = queue.Dequeue());
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int count = 0;
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foreach (var _ in queue)
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count++;
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Assert.AreEqual(0, count);
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}
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[TestCase(1)]
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[TestCase(2)]
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[TestCase(3)]
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public void TestBelowCapacity(int count)
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{
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for (int i = 0; i < count; ++i)
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queue.Enqueue(i);
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Assert.AreEqual(count, queue.Count);
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for (int i = 0; i < count; ++i)
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Assert.AreEqual(i, queue[i]);
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int j = 0;
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foreach (var item in queue)
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Assert.AreEqual(j++, item);
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for (int i = queue.Count; i < queue.Count + capacity; i++)
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Assert.Throws<ArgumentOutOfRangeException>(() => _ = queue[i]);
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}
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[TestCase(4)]
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[TestCase(5)]
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[TestCase(6)]
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public void TestEnqueueAtFullCapacity(int count)
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{
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for (int i = 0; i < count; ++i)
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queue.Enqueue(i);
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Assert.AreEqual(capacity, queue.Count);
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for (int i = 0; i < queue.Count; ++i)
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Assert.AreEqual(count - capacity + i, queue[i]);
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int j = count - capacity;
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foreach (var item in queue)
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Assert.AreEqual(j++, item);
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for (int i = queue.Count; i < queue.Count + capacity; i++)
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Assert.Throws<ArgumentOutOfRangeException>(() => _ = queue[i]);
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}
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[TestCase(4)]
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[TestCase(5)]
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[TestCase(6)]
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public void TestDequeueAtFullCapacity(int count)
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{
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for (int i = 0; i < count; ++i)
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queue.Enqueue(i);
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for (int i = 0; i < capacity; ++i)
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{
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Assert.AreEqual(count - capacity + i, queue.Dequeue());
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Assert.AreEqual(2 - i, queue.Count);
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}
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Assert.Throws<InvalidOperationException>(() => queue.Dequeue());
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}
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[Test]
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public void TestClearQueue()
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{
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queue.Enqueue(3);
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queue.Enqueue(5);
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Assert.AreEqual(2, queue.Count);
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queue.Clear();
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Assert.AreEqual(0, queue.Count);
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Assert.Throws<ArgumentOutOfRangeException>(() => _ = queue[0]);
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queue.Enqueue(7);
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Assert.AreEqual(1, queue.Count);
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Assert.AreEqual(7, queue[0]);
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Assert.Throws<ArgumentOutOfRangeException>(() => _ = queue[1]);
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queue.Enqueue(9);
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Assert.AreEqual(2, queue.Count);
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Assert.AreEqual(9, queue[1]);
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}
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}
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}
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