Added DocumentFilter in integration test

Author: ThomasBleijendaal

test-integration/Microsoft.Azure.WebJobs.Extensions.OpenApi.Document.Tests/Get_DocumentFilter_Tests.cs

@@ -0,0 +1,36 @@
+using System.Net.Http;
+using System.Threading.Tasks;
+
+using FluentAssertions;
+
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+
+namespace Microsoft.Azure.WebJobs.Extensions.OpenApi.Document.Tests
+{
+    [TestClass]
+    [TestCategory(Constants.TestCategory)]
+    public class Get_DocumentFilter_Tests
+    {
+        private static HttpClient http = new HttpClient();
+
+        private JObject _doc;
+
+        [TestInitialize]
+        public async Task Init()
+        {
+            var json = await http.GetStringAsync(Constants.OpenApiDocEndpoint).ConfigureAwait(false);
+            this._doc = JsonConvert.DeserializeObject<JObject>(json);
+        }
+
+        [TestMethod]
+        public void Given_Rewritten_OpenApiDocument_Then_It_Should_Have_Modified_Description()
+        {
+            var modifiedDescription = this._doc["paths"]["/get-documentfilter"]["get"]["responses"]["200"].Value<string>("description");
+
+            modifiedDescription.Should().Be("The OK response rewritten");
+        }
+    }
+}

test-integration/Microsoft.Azure.WebJobs.Extensions.OpenApi.TestApp/Configurations/OpenApiConfigurationOptions.cs

@@ -2,6 +2,7 @@
 
 using Microsoft.Azure.WebJobs.Extensions.OpenApi.Core.Configurations;
 using Microsoft.Azure.WebJobs.Extensions.OpenApi.Core.Enums;
+using Microsoft.Azure.WebJobs.Extensions.OpenApi.TestApp.DocumentFilters;
 using Microsoft.OpenApi.Models;
 
 namespace Microsoft.Azure.WebJobs.Extensions.OpenApi.TestApp.Configurations
@@ -19,6 +20,11 @@ public class OpenApiConfigurationOptions : DefaultOpenApiConfigurationOptions
         public const string LicenseUrl = "http://opensource.org/licenses/MIT";
         public const OpenApiVersionType OpenApiSpecVersion = OpenApiVersionType.V3;
 
+        public OpenApiConfigurationOptions()
+        {
+            this.AddDocumentFilter<RewriteDescriptionDocumentFilter>();
+        }
+
         public override OpenApiInfo Info { get; set; } = new OpenApiInfo()
         {
             Version = DocVersion,

test-integration/Microsoft.Azure.WebJobs.Extensions.OpenApi.TestApp/DocumentFilters/RewriteDescriptionDocumentFilter.cs

@@ -0,0 +1,17 @@
+using Microsoft.Azure.WebJobs.Extensions.OpenApi.Core.Abstractions;
+using Microsoft.OpenApi.Models;
+
+namespace Microsoft.Azure.WebJobs.Extensions.OpenApi.TestApp.DocumentFilters
+{
+    internal class RewriteDescriptionDocumentFilter : IDocumentFilter
+    {
+        public void Apply(IHttpRequestDataObject request, OpenApiDocument document)
+        {
+            document
+                .Paths["/get-documentfilter"]
+                .Operations[OperationType.Get]
+                .Responses["200"]
+                .Description += " rewritten";
+        }
+    }
+}

test-integration/Microsoft.Azure.WebJobs.Extensions.OpenApi.TestApp/Get_DocumentFilter_HttpTrigger.cs

@@ -0,0 +1,27 @@
+using System.Net;
+using System.Threading.Tasks;
+
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Azure.WebJobs.Extensions.Http;
+using Microsoft.Azure.WebJobs.Extensions.OpenApi.Core.Attributes;
+using Microsoft.Extensions.Logging;
+using Microsoft.OpenApi.Models;
+
+namespace Microsoft.Azure.WebJobs.Extensions.OpenApi.TestApp
+{
+    public static class Get_DocumentFilter_HttpTrigger
+    {
+        [FunctionName(nameof(Get_DocumentFilter_HttpTrigger))]
+        [OpenApiOperation(operationId: nameof(Get_DocumentFilter_HttpTrigger.Get_DocumentFilter), tags: new[] { "documentFilter" })]
+        [OpenApiResponseWithBody(statusCode: HttpStatusCode.OK, contentType: "text/plain", bodyType: typeof(string), Description = "The OK response")]
+        public static async Task<IActionResult> Get_DocumentFilter(
+            [HttpTrigger(AuthorizationLevel.Anonymous, "GET", Route = "get-documentfilter")] HttpRequest req,
+            ILogger log)
+        {
+            var result  = new OkResult();
+
+            return await Task.FromResult(result).ConfigureAwait(false);
+        }
+    }
+}