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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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using Xunit.Abstractions;
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using Xunit.Extensions;
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using Xunit.Sdk;
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using TupleStudy;
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namespace TupleStudyTest
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{
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public class ValueTupleStudyTest
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{
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private TupleStudy.ValueTupleStudy tupleStudy;
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public ValueTupleStudyTest()
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{
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tupleStudy = new TupleStudy.ValueTupleStudy();
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}
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/// <summary>
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/// 使用构造函数创建值元组
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/// </summary>
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[Fact]
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public void Create_ValueTuple_Constructor_Test()
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{
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//创建包含零个元组的值元组
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var zeroTuple = new ValueTuple();
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Assert.IsType<ValueTuple>(zeroTuple);
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//1个元组的值元组
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var oneTuple = new ValueTuple<int>(1);
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Assert.Equal(1, oneTuple.Item1);
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Assert.Equal("first", new ValueTuple<string>("first").Item1);
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//2个元组的值元组
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var twoTuple = new ValueTuple<int,int>(1,2);
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Assert.Equal(1, twoTuple.Item1);
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Assert.Equal(2, twoTuple.Item2);
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//3个元组的值元组
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var threeTuple = new ValueTuple<int,int,int>(1,2,3);
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Assert.Equal(1, threeTuple.Item1);
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Assert.Equal(2, threeTuple.Item2);
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Assert.Equal(3, threeTuple.Item3);
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//4个元组的值元组
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var fourTuple = new ValueTuple<int,int,int,int>(1,2,3,4);
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Assert.Equal(1, fourTuple.Item1);
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Assert.Equal(2, fourTuple.Item2);
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Assert.Equal(3, fourTuple.Item3);
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Assert.Equal(4, fourTuple.Item4);
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//5个元组的值元组
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var fiveTuple = new ValueTuple<int,int,int,int,int>(1,2,3,4,5);
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Assert.Equal(1, fiveTuple.Item1);
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Assert.Equal(2, fiveTuple.Item2);
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Assert.Equal(3, fiveTuple.Item3);
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Assert.Equal(4, fiveTuple.Item4);
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Assert.Equal(5, fiveTuple.Item5);
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//6个元组的值元组
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var sixTuple = new ValueTuple<int, int, int, int, int, int>(1, 2, 3, 4, 5, 6);
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Assert.Equal(1, sixTuple.Item1);
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Assert.Equal(2, sixTuple.Item2);
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Assert.Equal(3, sixTuple.Item3);
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Assert.Equal(4, sixTuple.Item4);
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Assert.Equal(5, sixTuple.Item5);
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Assert.Equal(6, sixTuple.Item6);
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//7个元组的值元组
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var sevenTuple = new ValueTuple<int, int, int, int, int, int, int>(1, 2, 3, 4, 5, 6, 7);
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Assert.Equal(1, sevenTuple.Item1);
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Assert.Equal(2, sevenTuple.Item2);
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Assert.Equal(3, sevenTuple.Item3);
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Assert.Equal(4, sevenTuple.Item4);
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Assert.Equal(5, sevenTuple.Item5);
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Assert.Equal(6, sevenTuple.Item6);
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Assert.Equal(7, sevenTuple.Item7);
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//8个及以上元组的值元组:元组嵌套
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var overSevenTuple = new ValueTuple<int, int, int, int, int, int, int, ValueTuple<int, int, int>>(1, 2, 3, 4, 5, 6, 7, new ValueTuple<int, int, int>(8, 9, 10));
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Assert.Equal(1, overSevenTuple.Item1);
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Assert.Equal(2, overSevenTuple.Item2);
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Assert.Equal(3, overSevenTuple.Item3);
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Assert.Equal(4, overSevenTuple.Item4);
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Assert.Equal(5, overSevenTuple.Item5);
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Assert.Equal(6, overSevenTuple.Item6);
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Assert.Equal(7, overSevenTuple.Item7);
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//元组嵌套
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Assert.Equal(8, overSevenTuple.Item8);
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Assert.Equal(9, overSevenTuple.Item9);
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Assert.Equal(10, overSevenTuple.Item10);
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//16个以上，要审视程序设计,是否确实需要使用ValueTuple，最好改成设计成类
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}
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}
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}
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