added docs but qos acceptance test not working seems circuit never opens but not sure if it is meant to with timeouts..investigating

2025-06-19 16:48:15 +08:00 · 2017-02-11 15:11:10 +00:00
parent ce8da4c92d
commit 820673dda8
10 changed files with 235 additions and 31 deletions
--- a/test/Ocelot.AcceptanceTests/QoSTests.cs
+++ b/test/Ocelot.AcceptanceTests/QoSTests.cs
@ -0,0 +1,136 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Net;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Http;
+using Ocelot.Configuration.File;
+using TestStack.BDDfy;
+using Xunit;
+
+namespace Ocelot.AcceptanceTests
+{
+    public class QoSTests : IDisposable
+    {
+        private IWebHost _builder;
+        private readonly Steps _steps;
+        private int _requestCount;
+
+        public QoSTests()
+        {
+            _steps = new Steps();
+        }
+
+
+        [Fact]
+        public void should_open_circuit_breaker_then_close()
+        {
+            var configuration = new FileConfiguration
+            {
+                ReRoutes = new List<FileReRoute>
+                {
+                    new FileReRoute
+                    {
+                        DownstreamPathTemplate = "/",
+                        DownstreamScheme = "http",
+                        DownstreamHost = "localhost",
+                        DownstreamPort = 51879,
+                        UpstreamPathTemplate = "/",
+                        UpstreamHttpMethod = "Get",
+                        QoSOptions = new FileQoSOptions
+                        {
+                            ExceptionsAllowedBeforeBreaking = 1,
+                            TimeoutValue = 500,
+                            DurationOfBreak = 1000
+                        }
+                    }
+                }
+            };
+
+            this.Given(x => x.GivenThereIsAServiceRunningOn("http://localhost:51879", "Hello from Laura"))
+                .Given(x => _steps.GivenThereIsAConfiguration(configuration))
+                .Given(x => _steps.GivenOcelotIsRunning())
+                .When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
+                .Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
+                .And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
+                .Given(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
+                .Given(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.RequestTimeout))
+                .Given(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
+                .Given(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.RequestTimeout))
+                .Given(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
+                .Given(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.RequestTimeout))
+                .Given(x => x.GivenIWaitMilliSeconds(2000))
+                .When(x => _steps.WhenIGetUrlOnTheApiGateway("/"))
+                .Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
+                .And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
+                .BDDfy();
+        }
+
+        private void GivenIWaitMilliSeconds(int ms)
+        {
+            Thread.Sleep(ms);
+        }
+
+        private void GivenThereIsAServiceRunningOn(string url, string responseBody)
+        {
+            _builder = new WebHostBuilder()
+                .UseUrls(url)
+                .UseKestrel()
+                .UseContentRoot(Directory.GetCurrentDirectory())
+                .UseIISIntegration()
+                .UseUrls(url)
+                .Configure(app =>
+                {
+                    app.Run(async context =>
+                    {
+                        //circuit starts closed
+                        if (_requestCount == 0)
+                        {
+                            _requestCount++;
+                            context.Response.StatusCode = 200;
+                            await context.Response.WriteAsync(responseBody);
+                            return;
+                        }
+
+                        //request one times out and polly throws exception
+                        if (_requestCount == 1)
+                        {
+                            _requestCount++;
+                            await Task.Delay(1000);
+                            context.Response.StatusCode = 200;
+                            return;
+                        }
+
+                        //request two times out and polly throws exception circuit opens
+                        if (_requestCount == 2)
+                        {
+                            _requestCount++;
+                            await Task.Delay(1000);
+                            context.Response.StatusCode = 200;
+                            return;
+                        }
+
+                        //after break closes we return 200 OK
+                        if (_requestCount == 3)
+                        {
+                            context.Response.StatusCode = 200;
+                            await context.Response.WriteAsync(responseBody);
+                            return;
+                        }
+                    });
+                })
+                .Build();
+
+            _builder.Start();
+        }
+
+        public void Dispose()
+        {
+            _builder?.Dispose();
+            _steps.Dispose();
+        }
+    }
+}