fixing issue #284

Author: aliostad

test/CacheCow.Client.Tests/CachingHandlerTests.cs

@@ -557,6 +557,10 @@ public async Task Issue238_It_cache_even_if_compression_is_on()
                 InnerHandler = compressionHandler, DefaultVaryHeaders = new[] {"Accept", "Accept-Encoding"}
             };
 
+#if NET452
+            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
+#endif
+
             var client = new HttpClient(pipeline);
             var request1 = new HttpRequestMessage(HttpMethod.Get, CacheablePublicResource);
             var request2 = new HttpRequestMessage(HttpMethod.Get, CacheablePublicResource);

test/CacheCow.Client.Tests/IntegrationTests.cs

@@ -5,6 +5,7 @@
 using Xunit;
 using System;
 using System.IO;
+using System.Net;
 
 namespace CacheCow.Client.Tests
 {
@@ -32,6 +33,10 @@ public async Task Test_GoogleImage_WorksOnFirstSecondRequestNotThird()
         [Fact]
         public async Task Simple_Caching_Example_From_Issue263()
         {
+#if NET452
+            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
+#endif
+
             var client = ClientExtensions.CreateClient();
             const string CacheableResource = "https://code.jquery.com/jquery-3.3.1.slim.min.js";
             var response = await client.GetAsync(CacheableResource);
@@ -44,6 +49,10 @@ public async Task Simple_Caching_Example_From_Issue263()
         [Fact] // Skip if the resource becomes unavailable
         public async Task Simple_Caching_Example_From_Issue267()
         {
+#if NET452
+            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
+#endif
+
             var client = ClientExtensions.CreateClient();
 
             // this one does not have a content-type too and that could be somehow related

test/CacheCow.Client.Tests/ResponseSerializationTests.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Net;
 using System.Net.Http;
 using System.Text;
 using CacheCow.Client;
@@ -33,6 +34,10 @@ public async Task IntegrationTest_Deserialize()
         [Fact]
         public async Task IntegrationTest_Serialize_Deserialize()
         {
+#if NET452
+            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
+#endif
+
             var httpClient = new HttpClient();
             var httpResponseMessage = await httpClient.GetAsync("https://webhooks.truelayer-sandbox.com/.well-known/jwks");
             var memoryStream = new MemoryStream();