130 lines
4.0 KiB
C#
130 lines
4.0 KiB
C#
using FluentAssertions;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using Xunit;
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namespace ObservableCollections.Tests
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{
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public class RingBufferTest
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{
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[Fact]
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public void All()
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{
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var list = new RingBuffer<int>();
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// befin from last...
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list.AddLast(1); list.Should().Equal(1);
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list.AddLast(2); list.Should().Equal(1, 2);
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list.AddLast(3); list.Should().Equal(1, 2, 3);
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list.AddLast(4); list.Should().Equal(1, 2, 3, 4);
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list.AddLast(5); list.Should().Equal(1, 2, 3, 4, 5);
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list.AddLast(6); list.Should().Equal(1, 2, 3, 4, 5, 6);
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list.RemoveLast().Should().Be(6);
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list.RemoveLast().Should().Be(5);
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list.Should().Equal(1, 2, 3, 4);
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list.Reverse().Should().Equal(4, 3, 2, 1);
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list.RemoveFirst().Should().Be(1);
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list.RemoveFirst().Should().Be(2);
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list.Should().Equal(3, 4);
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list.AddFirst(99);
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list.AddLast(88);
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list.Should().Equal(99, 3, 4, 88);
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// Adding Loop
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list.AddLast(5);
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list.AddLast(6);
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list.AddLast(7);
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list.AddLast(8);
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list.Should().Equal(99, 3, 4, 88, 5, 6, 7, 8);
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list.Reverse().Should().Equal(8, 7, 6, 5, 88, 4, 3, 99);
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// copy
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{
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var newArray = new int[10];
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list.CopyTo(newArray, 0);
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newArray.Should().Equal(99, 3, 4, 88, 5, 6, 7, 8, 0, 0);
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}
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{
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var newArray = new int[10];
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list.CopyTo(newArray, 1);
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newArray.Should().Equal(0, 99, 3, 4, 88, 5, 6, 7, 8, 0);
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}
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list.Clear();
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// befin from first...
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list.AddFirst(1);
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list.AddFirst(2);
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list.AddFirst(3);
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list.AddFirst(4);
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list.AddFirst(5);
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list.AddFirst(6);
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list.Should().Equal(6, 5, 4, 3, 2, 1);
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list.Reverse().Should().Equal(1, 2, 3, 4, 5, 6);
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list.RemoveLast().Should().Be(1);
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list.RemoveLast().Should().Be(2);
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list.Should().Equal(6, 5, 4, 3);
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list.RemoveFirst().Should().Be(6);
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list.RemoveFirst().Should().Be(5);
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list.Should().Equal(4, 3);
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list.AddFirst(99);
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list.AddLast(88);
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list.Should().Equal(99, 4, 3, 88);
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list.AddFirst(5);
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list.AddFirst(6);
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list.AddFirst(7);
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list.AddFirst(8);
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list.Should().Equal(8, 7, 6, 5, 99, 4, 3, 88);
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// set, get
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list[0].Should().Be(8);
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list[1].Should().Be(7);
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list[2].Should().Be(6);
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list[3].Should().Be(5);
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list[4].Should().Be(99);
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list[5].Should().Be(4);
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list[6].Should().Be(3);
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list[7].Should().Be(88);
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list[0] = 999;
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list[4] = 1099;
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list[7] = 888;
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// ensure capacity
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list.AddFirst(9);
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list.Should().Equal(9, 999, 7, 6, 5, 1099, 4, 3, 888);
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list.Reverse().Should().Equal(888, 3, 4, 1099, 5, 6, 7, 999, 9);
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list.AddFirst(199);
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list.AddLast(299);
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list.Should().Equal(199, 9, 999, 7, 6, 5, 1099, 4, 3, 888, 299);
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list.Reverse().Should().Equal(299, 888, 3, 4, 1099, 5, 6, 7, 999, 9, 199);
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// copy
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{
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var newArray = new int[15];
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list.CopyTo(newArray, 0);
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newArray.Should().Equal(199, 9, 999, 7, 6, 5, 1099, 4, 3, 888, 299, 0, 0, 0, 0);
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}
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{
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var newArray = new int[15];
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list.CopyTo(newArray, 2);
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newArray.Should().Equal(0, 0, 199, 9, 999, 7, 6, 5, 1099, 4, 3, 888, 299, 0, 0);
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}
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}
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}
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}
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