add method for setting up HttpClient with raw json content

Remove dependency on Newtonsoft.Json

Author: fgheysels

src/HttpTestUtils/HttpTestUtils/HttpClientMock.cs

@@ -1,5 +1,4 @@
-using Newtonsoft.Json;
-using System;
+using System;
 using System.Collections.Generic;
 using System.Net;
 using System.Net.Http;
@@ -19,7 +18,7 @@ public static HttpClient SetupHttpClientWithJsonResponse<TResponseContent>(HttpS
         public static HttpClient SetupHttpClientWithJsonResponse<TResponseContent>(HttpResponseContent<TResponseContent> response)
         {
             var messageHandler =
-                new TestHttpMessageHandler(_ => Task.FromResult(new HttpResponseMessage(response.StatusCode) { Content = new StringContent(JsonConvert.SerializeObject(response.Content), Encoding.UTF8, "application/json") }));
+                new TestHttpMessageHandler(_ => Task.FromResult(new HttpResponseMessage(response.StatusCode) { Content = new StringContent(System.Text.Json.JsonSerializer.Serialize(response.Content), Encoding.UTF8, "application/json") }));
 
             return new HttpClient(messageHandler);
         }
@@ -33,7 +32,7 @@ public static HttpClient SetupHttpClientWithJsonResponse<TResponseContent>(Func<
 
                     var response = new HttpResponseMessage(responseContent.StatusCode)
                     {
-                        Content = new StringContent(JsonConvert.SerializeObject(responseContent.Content),
+                        Content = new StringContent(System.Text.Json.JsonSerializer.Serialize(responseContent.Content),
                                                     Encoding.UTF8,
                                                     "application/json")
                     };
@@ -42,7 +41,15 @@ public static HttpClient SetupHttpClientWithJsonResponse<TResponseContent>(Func<
                 });
 
             return new HttpClient(messageHandler);
-        } 
+        }
+
+        public static HttpClient SetupHttpClientWithRawJsonResponse(HttpStatusCode statusCode, string rawJson)
+        {
+            var messageHandler =
+                new TestHttpMessageHandler(_ => Task.FromResult(new HttpResponseMessage(statusCode) { Content = new StringContent(rawJson, Encoding.UTF8, "application/json") }));
+
+            return new HttpClient(messageHandler);
+        }
 
         /// <summary>
         /// Sets up a HttpClientMock that will return another response on each invocation.
@@ -65,7 +72,7 @@ public static HttpClient SetupHttpClientWithMultipleJsonResponses<TResponseConte
 
                     var response = new HttpResponseMessage(responseContent.StatusCode)
                     {
-                        Content = new StringContent(JsonConvert.SerializeObject(responseContent.Content),
+                        Content = new StringContent(System.Text.Json.JsonSerializer.Serialize(responseContent.Content),
                                                     Encoding.UTF8,
                                                     "application/json")
                     };

src/HttpTestUtils/HttpTestUtils/HttpTestUtils.csproj

@@ -13,6 +13,6 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
+    <PackageReference Include="System.Text.Json" Version="[8.0.5,)" />
   </ItemGroup>
 </Project>