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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 TupleStudy;
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namespace ValueTupleStudyTest
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{
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/// <summary>
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/// ValueTuple 需要.net framework 4.7及以上
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/// .net framework 4.7及以下,需要Nuget引用包System.ValueTuple 库
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/// </summary>
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public class ValueTupleStudyTest
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{
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private ValueTupleStudy valueTupleStudy;
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/// <summary>
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/// 构造函数
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/// </summary>
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public ValueTupleStudyTest()
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{
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valueTupleStudy = new 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 CreateValueTuple_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 = this.valueTupleStudy.CreateValueTuple();
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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 = valueTupleStudy.CreateValueTuple<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 = valueTupleStudy.CreateValueTuple<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 = valueTupleStudy.CreateValueTuple<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 = valueTupleStudy.CreateValueTuple<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 = valueTupleStudy.CreateValueTuple<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 = valueTupleStudy.CreateValueTuple<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 = valueTupleStudy.CreateValueTuple<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 = valueTupleStudy.CreateValueTuple<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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//注意 构造方法创建的可以直接用 Item8 Item9等来引用,静态方法创建的,则要用 valueTuple.Item8.Item1 这种方式。
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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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/// <summary>
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/// 使用静态Create方法 创建值元组
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/// </summary>
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[Fact]
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public void GetValueTuple_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 = valueTupleStudy.GetValueTuple();
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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 = valueTupleStudy.GetValueTuple<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 = valueTupleStudy.GetValueTuple<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 = valueTupleStudy.GetValueTuple<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 = valueTupleStudy.GetValueTuple<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 = valueTupleStudy.GetValueTuple<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 = valueTupleStudy.GetValueTuple<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 = valueTupleStudy.GetValueTuple<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 = valueTupleStudy.GetValueTuple<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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//注意 构造方法创建的可以直接用 Item8 Item9等来引用,静态方法创建的,则要用 valueTuple.Item8.Item1 这种方式。
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Assert.Equal(8, overSevenTuple.Item8.Item1);
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Assert.Equal(9, overSevenTuple.Item8.Item2);
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Assert.Equal(10, overSevenTuple.Item8.Item3);
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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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/// <summary>
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/// 自定义值元组项的名字
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/// </summary>
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[Fact]
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public void CustomName_ValueTuple_Test()
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{
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//使用var
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var (userId,userName,userAge) = ValueTuple.Create(1, "wanggaofeng", 18);
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Assert.Equal(1, userId);
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Assert.Equal("wanggaofeng", userName);
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Assert.Equal(18, userAge);
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//不使用var, 放()内
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(int id, string name, int age) = ValueTuple.Create(1, "wanggaofeng", 18);
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Assert.Equal(1, id);
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Assert.Equal("wanggaofeng", name);
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Assert.Equal(18, age);
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}
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/// <summary>
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/// 简化值元组的创建方法
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/// </summary>
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[Fact]
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public void SingleCreateValueTuple_Test()
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{
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//自定义名称
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var student = (userId: 1, userName: "wanggaofeng", userAge: 18);
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Assert.Equal(1,student.userId);
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Assert.Equal("wanggaofeng", student.userName);
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Assert.Equal(18, student.userAge);
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//默认名称
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var student2 = (1, "wanggaofeng", 18);
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Assert.Equal(1, student2.Item1);
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Assert.Equal("wanggaofeng", student2.Item2);
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Assert.Equal(18, student2.Item3);
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//方法返回值,方法中已命名
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var student3 = valueTupleStudy.SingleCreateValueTuple();
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Assert.Equal(1, student3.userId);
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Assert.Equal("王高峰", student3.userName);
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Assert.Equal(18, student3.userAge);
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}
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[Fact]
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public void GetNamedValueTuple_Test()
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{
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//使用引用方法的命名
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var student = valueTupleStudy.GetNamedValueTuple();
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Assert.Equal(1, student.userId);
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Assert.Equal("王高峰", student.userName);
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Assert.Equal(18U, student.userAge);
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//接收时重新命名
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var (id, name, age) = valueTupleStudy.GetNamedValueTuple();
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Assert.Equal(1, id);
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Assert.Equal("王高峰", name);
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Assert.Equal(18U, age);
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//不使用命名
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ValueTuple<int, string, uint> tuple = valueTupleStudy.GetNamedValueTuple();
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Assert.Equal(1, tuple.Item1);
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Assert.Equal("王高峰", tuple.Item2);
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Assert.Equal(18U, tuple.Item3);
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}
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[Fact]
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public void GetUnNamedValueTuple_Test()
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{
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//接收时重新命名
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var (userId, userName, userAge) = valueTupleStudy.GetUnNamedValueTuple();
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Assert.Equal(1,userId);
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Assert.Equal("王高峰", userName);
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Assert.Equal(18U, userAge);
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//使用默认
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var student = valueTupleStudy.GetUnNamedValueTuple();
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Assert.Equal(1, student.Item1);
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Assert.Equal("王高峰", student.Item2);
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Assert.Equal(18U, student.Item3);
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ValueTuple<int, string, uint> tuple = valueTupleStudy.GetUnNamedValueTuple();
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Assert.Equal(1, tuple.Item1);
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Assert.Equal("王高峰", tuple.Item2);
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Assert.Equal(18U, tuple.Item3);
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}
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/// <summary>
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/// 接收方法返回元组值时,忽略不需要的荐
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/// </summary>
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[Fact]
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public void IgnoreItem_ValuleTuple_Test()
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{
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//接收时重新命名,并忽略不需要的项:用_表示忽略的项
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var (_, userName, _) = valueTupleStudy.GetUnNamedValueTuple();
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Assert.Equal("王高峰",userName);
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//另一种方法
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(_, string userName2, _) = valueTupleStudy.GetUnNamedValueTuple();
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Assert.Equal("王高峰", userName2);
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}
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/// <summary>
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/// 值元组做为方法参数 测试
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/// </summary>
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[Fact]
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public void ValueTupleAsParameterForMether_Test()
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{
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var para = (userId:1,userName:"wanggaofeng", userAge:18);
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var result = valueTupleStudy.ValueTupleAsParameterForMether(para);
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Assert.True(result);
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var para2 = (1,2,3);
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var result2 = valueTupleStudy.ValueTupleAsParameterForMether(para2);
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Assert.False(result2);
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}
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/// <summary>
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/// Git-Flow 补丁测试
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/// </summary>
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[Fact]
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public void Hotfix_Test()
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{
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Assert.True(1 == 1);
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}
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}
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}
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