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using Microsoft.Extensions.Configuration;
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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.Security.Cryptography.X509Certificates;
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using System.Text;
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using System.Threading.Tasks;
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namespace OptionStudy.Next
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{
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/// <summary>
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/// 5.2 配置模型
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/// IConfigurationProvider 测试
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/// IConfigrutionProvider 被设计为 IConfigurationSource 构建，并保持在 IConfigurationBuilder 的属性中
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/// 所以一般不单独实例化出来使用，而是配合 IConfigurationSource 和 IConfigurationBuilder 使用
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/// </summary>
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public class IConfigurationProviderTest: IDisposable
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{
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private readonly ITestOutputHelper testOutput;
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private IDictionary<string, string?> memoryData = new Dictionary<string, string?>()
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{
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["AppName"] = "MemoryAppName",
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["AppVersion"] = "0.0.0.1",
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["EMail:ReceiveAddress"] = "memory@163.com",
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["EMail:Recipient"] = "memory",
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};
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public IConfigurationProviderTest(ITestOutputHelper testOutputHelper)
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{
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testOutput = testOutputHelper;
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}
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/// <summary>
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/// 实例化配置提供者
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/// </summary>
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[Fact]
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public void IConfigrutionProvider_New_Test()
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{
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//不配合 IConfigrutionSource 直接实例化，将会异常
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Action createAction = () =>
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{
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var provider = new MemoryConfigurationProvider(null);
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};
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Assert.ThrowsAny<ArgumentNullException>(createAction);
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//关联 ConfigurationSource
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var source = new MemoryConfigurationSource()
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{
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InitialData = new Dictionary<string, string?>() { ["TestName"]="MyTest"}
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};
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var provider = new MemoryConfigurationProvider(source);
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Assert.NotNull(provider);
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//可以进行各种操作
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Action run = () =>
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{
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provider.Set("TestName", "UpdateName");
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if (!provider.TryGet("Demo",out string _v))
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{
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provider.Add("Demo", "demo");
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}
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provider.Load();
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};
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//断言不发生异常
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//方法一：使用 FluentAssertions 库
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run.Should().NotThrow();
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//方法二：xUnit 变通方法
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var exception = Record.Exception(run);
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Assert.Null(exception);
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}
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/// <summary>
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/// 获取 IConfigrution 手动添加配置源
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/// 方法一：ConfigurationSource Build()方法
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/// 说明：参数为空值，框架设置的参数并没有在初始化中直接使用，可能是强调与 ConfigurationBuilder 关系吧
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/// IConfigurationProvider 应该由 IConfigurationBuilder 创建，基本是写在扩展方法里，这样设计可能是强调这种编程使用方式吧
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/// </summary>
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[Fact]
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public void IConfigrutionProvider_Create_1_Test()
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{
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//内存配置源
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MemoryConfigurationSource source = new MemoryConfigurationSource()
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{
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InitialData= memoryData,
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};
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//内存配置提供者:实际上由配置源提供，构建过程中直接使用配置源，不需要单独提出来
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var provider = source.Build(null);
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//直接使用配置源，无需显式使用 Provider
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var builder = new ConfigurationBuilder().Add(source);
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var configrution = builder.Build();
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Assert.NotNull(configrution);
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}
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public void Dispose()
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{
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}
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}
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}
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