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atwayneatwayne
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initial implementation
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‎TestServer.sln

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.0.32112.339
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TestServer", "src\TestServer\TestServer.csproj", "{9AF09F0D-5B1B-451C-81FA-75E6FBB55F5E}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TestServer.Tests", "test\TestServer.Tests\TestServer.Tests.csproj", "{AA288AC7-12FA-4D00-87DC-88A5542069C5}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{9AF09F0D-5B1B-451C-81FA-75E6FBB55F5E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{9AF09F0D-5B1B-451C-81FA-75E6FBB55F5E}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{9AF09F0D-5B1B-451C-81FA-75E6FBB55F5E}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{9AF09F0D-5B1B-451C-81FA-75E6FBB55F5E}.Release|Any CPU.Build.0 = Release|Any CPU
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{AA288AC7-12FA-4D00-87DC-88A5542069C5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{AA288AC7-12FA-4D00-87DC-88A5542069C5}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{AA288AC7-12FA-4D00-87DC-88A5542069C5}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{AA288AC7-12FA-4D00-87DC-88A5542069C5}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {F52F6B90-1394-43AC-87BF-7986DA00F105}
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EndGlobalSection
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EndGlobal

‎src/TestServer/Rule.cs

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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.RegularExpressions;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Http.Extensions;
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namespace TestUtilities
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{
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public class Rule
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{
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public IList<Func<HttpRequest, bool>> Predictions { get; set; }
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public Action<HttpResponse> Action { get; set; }
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public RuleSet RuleSet { get; set; }
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public Rule(RuleSet ruleSet)
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{
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RuleSet = ruleSet;
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Predictions = new List<Func<HttpRequest, bool>>();
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}
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public bool IsValid()
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{
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return Action != null;
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}
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public Rule AddRule()
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{
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if (Action == null)
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{
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throw new InvalidOperationException("Previous rule not completed");
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}
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return RuleSet.AddRule();
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}
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public Rule WhenGet()
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{
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Predictions.Add((request) =>
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{
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return request.Method == "GET";
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});
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return this;
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}
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public Rule WhenUrlMatch(string pattern)
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{
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Predictions.Add((request) =>
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{
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var actualUrl = UriHelper.GetDisplayUrl(request);
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return Regex.IsMatch(actualUrl, pattern);
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});
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return this;
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}
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public Rule WhenHeaderMatch(string key, string value)
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{
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Predictions.Add((request) =>
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{
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if (!request.Headers.TryGetValue(key, out var actual))
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{
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return false;
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}
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return actual.Contains(value);
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});
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return this;
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}
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public Rule WhenAuthorizationMatch(string token)
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{
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return WhenHeaderMatch("Authorization", token);
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}
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public Rule SetBadRequest(string message = "Bad Request")
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{
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Action = async response =>
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{
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response.StatusCode = 400;
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await response.WriteAsync(message);
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};
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return this;
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}
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public Rule SetOkResponse(string output)
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{
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Action = async response =>
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{
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await response.WriteAsync(output);
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};
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return this;
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}
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}
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}

‎src/TestServer/RuleSet.cs

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using System;
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using System.Collections.Generic;
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using Microsoft.AspNetCore.Http;
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namespace TestUtilities
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{
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public class RuleSet
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{
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public List<Rule> Rules { get; private set; }
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public Action<HttpResponse> DefaultAction { get; private set; }
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public RuleSet()
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{
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Rules = new List<Rule>();
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DefaultAction = async response =>
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{
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response.StatusCode = 404;
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await response.WriteAsync("Simons says Not Match");
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};
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}
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public Rule AddRule()
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{
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var rule = new Rule(this);
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Rules.Add(rule);
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return rule;
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}
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public RuleSet SetDefaultAction(Action<HttpResponse> action)
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{
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DefaultAction = action;
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return this;
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}
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}
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}

‎src/TestServer/Startup.cs

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using System.Linq;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Builder;
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using Microsoft.Extensions.DependencyInjection;
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namespace TestUtilities
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{
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internal class Startup
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{
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public virtual void ConfigureServices(IServiceCollection services)
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{
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services.AddRouting();
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}
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public virtual void Configure(IApplicationBuilder app, RuleSet ruleSet)
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{
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app.UseRouting();
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app.UseEndpoints(endpoints =>
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{
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endpoints.Map("/", async context =>
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{
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var matchFound = false;
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foreach (var rule in ruleSet.Rules)
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{
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var match = rule.Predictions.All(prediction => prediction(context.Request));
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if (match)
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{
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await Task.Run(() =>
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{
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rule.Action(context.Response);
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});
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matchFound = true;
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break;
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}
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}
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if (!matchFound)
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{
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await Task.Run(() =>
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{
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ruleSet.DefaultAction(context.Response);
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});
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}
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});
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});
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}
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}
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}

‎src/TestServer/TestServer.cs

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using System.Net.Http;
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using Microsoft.AspNetCore.Hosting;
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using Microsoft.Extensions.DependencyInjection;
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using InternalTestServer = Microsoft.AspNetCore.TestHost.TestServer;
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namespace TestUtilities
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{
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public class TestServer
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{
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public RuleSet CurrentRuleSet { get; private set; }
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public TestServer()
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{
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CurrentRuleSet = new RuleSet();
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}
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public HttpClient CreateClient()
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{
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var builder = new WebHostBuilder()
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.ConfigureServices(services =>
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{
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services.AddSingleton(CurrentRuleSet);
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})
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.UseStartup<Startup>();
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var testServer = new InternalTestServer(builder);
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return testServer.CreateClient();
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}
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}
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}

‎src/TestServer/TestServer.csproj

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>netcoreapp3.1</TargetFramework>
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<RootNamespace>TestUtilities</RootNamespace>
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<AssemblyName>TestUtilities.TestServer</AssemblyName>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.AspNetCore.Hosting" Version="2.2.7" />
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<PackageReference Include="Microsoft.AspNetCore.Http.Abstractions" Version="2.2.0" />
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<PackageReference Include="Microsoft.AspNetCore.Routing" Version="2.2.2" />
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<PackageReference Include="Microsoft.AspNetCore.TestHost" Version="3.1.22" />
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<PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="3.1.22" />
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</ItemGroup>
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</Project>

‎test/TestServer.Tests/TestServer.Tests.csproj

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>netcoreapp3.1</TargetFramework>
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<IsPackable>false</IsPackable>
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<RootNamespace>TestUtilities.Tests</RootNamespace>
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<AssemblyName>TestUtilities.TestServer.Tests</AssemblyName>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="NUnit" Version="3.12.0" />
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<PackageReference Include="NUnit3TestAdapter" Version="3.16.1" />
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<PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.5.0" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\..\src\TestServer\TestServer.csproj" />
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</ItemGroup>
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</Project>

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