adding midleware tests

test/Ocelot.UnitTests/Middleware/DownstreamRouteFinderMiddlewareTests.cs

@@ -0,0 +1,89 @@
+namespace Ocelot.UnitTests.Middleware
+{
+    using System;
+    using System.Collections.Generic;
+    using System.IO;
+    using System.Net.Http;
+    using Library.Infrastructure.DownstreamRouteFinder;
+    using Library.Infrastructure.Repository;
+    using Library.Infrastructure.Responses;
+    using Library.Infrastructure.UrlMatcher;
+    using Library.Middleware;
+    using Microsoft.AspNetCore.Hosting;
+    using Microsoft.AspNetCore.TestHost;
+    using Microsoft.Extensions.DependencyInjection;
+    using Moq;
+    using TestStack.BDDfy;
+    using Xunit;
+
+    public class DownstreamRouteFinderMiddlewareTests : IDisposable
+    {
+        private readonly Mock<IDownstreamRouteFinder> _downstreamRouteFinder;
+        private readonly Mock<IScopedRequestDataRepository> _scopedRepository;
+        private readonly string _url;
+        private readonly TestServer _server;
+        private readonly HttpClient _client;
+        private Response<DownstreamRoute> _downstreamRoute;
+        private HttpResponseMessage _result;
+
+        public DownstreamRouteFinderMiddlewareTests()
+        {
+            _url = "http://localhost:51879";
+            _downstreamRouteFinder = new Mock<IDownstreamRouteFinder>();
+            _scopedRepository = new Mock<IScopedRequestDataRepository>();
+
+            var builder = new WebHostBuilder()
+              .ConfigureServices(x =>
+              {
+                  x.AddSingleton(_downstreamRouteFinder.Object);
+                  x.AddSingleton(_scopedRepository.Object);
+              })
+              .UseUrls(_url)
+              .UseKestrel()
+              .UseContentRoot(Directory.GetCurrentDirectory())
+              .UseIISIntegration()
+              .UseUrls(_url)
+              .Configure(app =>
+              {
+                  app.UseDownstreamRouteFinderMiddleware();
+              });
+
+            _server = new TestServer(builder);
+            _client = _server.CreateClient();
+        }
+
+        [Fact]
+        public void happy_path()
+        {
+            this.Given(x => x.GivenTheDownStreamRouteFinderReturns(new DownstreamRoute(new List<TemplateVariableNameAndValue>(), "any old string")))
+                .When(x => x.WhenICallTheMiddleware())
+                .Then(x => x.ThenTheScopedDataRepositoryIsCalledCorrectly())
+                .BDDfy();
+        }
+
+        private void ThenTheScopedDataRepositoryIsCalledCorrectly()
+        {
+            _scopedRepository
+                .Verify(x => x.Add("DownstreamRoute", _downstreamRoute.Data), Times.Once());
+        }
+
+        private void WhenICallTheMiddleware()
+        {
+            _result = _client.GetAsync(_url).Result;
+        }
+
+        private void GivenTheDownStreamRouteFinderReturns(DownstreamRoute downstreamRoute)
+        {
+            _downstreamRoute = new OkResponse<DownstreamRoute>(downstreamRoute);
+            _downstreamRouteFinder
+                .Setup(x => x.FindDownstreamRoute(It.IsAny<string>(), It.IsAny<string>()))
+                .Returns(_downstreamRoute);
+        }
+
+        public void Dispose()
+        {
+            _client.Dispose();
+            _server.Dispose();
+        }
+    }
+}

test/Ocelot.UnitTests/Middleware/DownstreamUrlCreatorMiddlewareTests.cs

@@ -0,0 +1,100 @@
+namespace Ocelot.UnitTests.Middleware
+{
+    using System;
+    using System.Collections.Generic;
+    using System.IO;
+    using System.Net.Http;
+    using Library.Infrastructure.DownstreamRouteFinder;
+    using Library.Infrastructure.Repository;
+    using Library.Infrastructure.Responses;
+    using Library.Infrastructure.UrlMatcher;
+    using Library.Infrastructure.UrlTemplateReplacer;
+    using Library.Middleware;
+    using Microsoft.AspNetCore.Hosting;
+    using Microsoft.AspNetCore.TestHost;
+    using Microsoft.Extensions.DependencyInjection;
+    using Moq;
+    using TestStack.BDDfy;
+    using Xunit;
+
+    public class DownstreamUrlCreatorMiddlewareTests : IDisposable
+    {
+        private readonly Mock<IDownstreamUrlTemplateVariableReplacer> _downstreamUrlTemplateVariableReplacer;
+        private readonly Mock<IScopedRequestDataRepository> _scopedRepository;
+        private readonly string _url;
+        private readonly TestServer _server;
+        private readonly HttpClient _client;
+        private Response<DownstreamRoute> _downstreamRoute;
+        private HttpResponseMessage _result;
+        private OkResponse<string> _downstreamUrl;
+
+        public DownstreamUrlCreatorMiddlewareTests()
+        {
+            _url = "http://localhost:51879";
+            _downstreamUrlTemplateVariableReplacer = new Mock<IDownstreamUrlTemplateVariableReplacer>();
+            _scopedRepository = new Mock<IScopedRequestDataRepository>();
+
+            var builder = new WebHostBuilder()
+              .ConfigureServices(x =>
+              {
+                  x.AddSingleton(_downstreamUrlTemplateVariableReplacer.Object);
+                  x.AddSingleton(_scopedRepository.Object);
+              })
+              .UseUrls(_url)
+              .UseKestrel()
+              .UseContentRoot(Directory.GetCurrentDirectory())
+              .UseIISIntegration()
+              .UseUrls(_url)
+              .Configure(app =>
+              {
+                  app.UseDownstreamUrlCreatorMiddleware();
+              });
+
+            _server = new TestServer(builder);
+            _client = _server.CreateClient();
+        }
+
+        [Fact]
+        public void happy_path()
+        {
+            this.Given(x => x.GivenTheDownStreamRouteIs(new DownstreamRoute(new List<TemplateVariableNameAndValue>(), "any old string")))
+                .And(x => x.TheUrlReplacerReturns("any old string"))
+                .When(x => x.WhenICallTheMiddleware())
+                .Then(x => x.ThenTheScopedDataRepositoryIsCalledCorrectly())
+                .BDDfy();
+        }
+
+        private void TheUrlReplacerReturns(string downstreamUrl)
+        {
+            _downstreamUrl = new OkResponse<string>(downstreamUrl);
+            _downstreamUrlTemplateVariableReplacer
+                .Setup(x => x.ReplaceTemplateVariables(It.IsAny<DownstreamRoute>()))
+                .Returns(_downstreamUrl);
+        }
+
+        private void ThenTheScopedDataRepositoryIsCalledCorrectly()
+        {
+            _scopedRepository
+                .Verify(x => x.Add("DownstreamUrl", _downstreamUrl.Data), Times.Once());
+        }
+
+        private void WhenICallTheMiddleware()
+        {
+            _result = _client.GetAsync(_url).Result;
+        }
+
+        private void GivenTheDownStreamRouteIs(DownstreamRoute downstreamRoute)
+        {
+            _downstreamRoute = new OkResponse<DownstreamRoute>(downstreamRoute);
+            _scopedRepository
+                .Setup(x => x.Get<DownstreamRoute>(It.IsAny<string>()))
+                .Returns(_downstreamRoute);
+        }
+
+        public void Dispose()
+        {
+            _client.Dispose();
+            _server.Dispose();
+        }
+    }
+}

test/Ocelot.UnitTests/Middleware/HttpRequestBuilderMiddlewareTests.cs

@@ -0,0 +1,102 @@
+/*
+namespace Ocelot.UnitTests.Middleware
+{
+    using System;
+    using System.Collections.Generic;
+    using System.IO;
+    using System.Net.Http;
+    using Library.Infrastructure.DownstreamRouteFinder;
+    using Library.Infrastructure.Repository;
+    using Library.Infrastructure.RequestBuilder;
+    using Library.Infrastructure.Responses;
+    using Library.Infrastructure.UrlMatcher;
+    using Library.Infrastructure.UrlTemplateReplacer;
+    using Library.Middleware;
+    using Microsoft.AspNetCore.Hosting;
+    using Microsoft.AspNetCore.TestHost;
+    using Microsoft.Extensions.DependencyInjection;
+    using Moq;
+    using TestStack.BDDfy;
+    using Xunit;
+
+    public class HttpRequestBuilderMiddlewareTests : IDisposable
+    {
+        private readonly Mock<IRequestBuilder> _requestBuilder;
+        private readonly Mock<IScopedRequestDataRepository> _scopedRepository;
+        private readonly string _url;
+        private readonly TestServer _server;
+        private readonly HttpClient _client;
+        private HttpResponseMessage _result;
+        private OkResponse<string> _downstreamUrl;
+
+        public HttpRequestBuilderMiddlewareTests()
+        {
+            _url = "http://localhost:51879";
+            _requestBuilder = new Mock<IRequestBuilder>();
+            _scopedRepository = new Mock<IScopedRequestDataRepository>();
+
+            var builder = new WebHostBuilder()
+              .ConfigureServices(x =>
+              {
+                  x.AddSingleton(_requestBuilder.Object);
+                  x.AddSingleton(_scopedRepository.Object);
+              })
+              .UseUrls(_url)
+              .UseKestrel()
+              .UseContentRoot(Directory.GetCurrentDirectory())
+              .UseIISIntegration()
+              .UseUrls(_url)
+              .Configure(app =>
+              {
+                  app.UseHttpRequestBuilderMiddleware();
+              });
+
+            _server = new TestServer(builder);
+            _client = _server.CreateClient();
+        }
+
+        [Fact]
+        public void happy_path()
+        {
+            this.Given(x => x.GivenTheDownStreamUrlIs(new DownstreamRoute(new List<TemplateVariableNameAndValue>(), "any old string")))
+                .And(x => x.GivenTheRequestBuilderReturns("any old string"))
+                .When(x => x.WhenICallTheMiddleware())
+                .Then(x => x.ThenTheScopedDataRepositoryIsCalledCorrectly())
+                .BDDfy();
+        }
+
+        private void GivenTheRequestBuilderReturns(Response<Request> request)
+        {
+            _downstreamUrl = new OkResponse<string>(downstreamUrl);
+            _downstreamUrlTemplateVariableReplacer
+                .Setup(x => x.ReplaceTemplateVariables(It.IsAny<DownstreamRoute>()))
+                .Returns(_downstreamUrl);
+        }
+
+        private void ThenTheScopedDataRepositoryIsCalledCorrectly()
+        {
+            _scopedRepository
+                .Verify(x => x.Add("DownstreamUrl", _downstreamUrl.Data), Times.Once());
+        }
+
+        private void WhenICallTheMiddleware()
+        {
+            _result = _client.GetAsync(_url).Result;
+        }
+
+        private void GivenTheDownStreamUrlIs(string downstreamRoute)
+        {
+            _downstreamUrl = new OkResponse<string>(downstreamRoute);
+            _scopedRepository
+                .Setup(x => x.Get<string>(It.IsAny<string>()))
+                .Returns(_downstreamUrl);
+        }
+
+        public void Dispose()
+        {
+            _client.Dispose();
+            _server.Dispose();
+        }
+    }
+}
+*/