Switch to dot net standard

src/SparkPost.Tests/CastingHelpers.cs

@@ -0,0 +1,15 @@
+namespace SparkPost.Tests
+{
+    public static class CastingHelpers
+    {
+        public static T CastAs<T>(this object @object) where T : class
+        {
+            return @object as T;
+        }
+
+        public static T CastTo<T>(this object @object)
+        {
+            return (T)@object;
+        }
+    }
+}

src/SparkPost.Tests/ClientTests.cs

@@ -2,7 +2,7 @@
 using System.Net.Http;
 using AutoMoq.Helpers;
 using NUnit.Framework;
-using Should;
+using Shouldly;
 
 namespace SparkPost.Tests
 {
@@ -46,7 +46,7 @@ public void It_should_allow_the_overriding_of_the_http_client_building()
             [Test]
             public void It_should_default_to_async()
             {
-                client.CustomSettings.SendingMode.ShouldEqual(SendingModes.Async);
+                client.CustomSettings.SendingMode.ShouldBe(SendingModes.Async);
             }
 
             [Test]
@@ -59,7 +59,7 @@ public void it_should_have_inbound_domains()
             public void It_should_set_any_subaccount_id_passed_to_it()
             {
                 (new Client(Guid.NewGuid().ToString(), 1234))
-                    .SubaccountId.ShouldEqual(1234);
+                    .SubaccountId.ShouldBe(1234);
             }
         }
 
@@ -75,15 +75,15 @@ public void Setup()
             [Test]
             public void It_should_default_to_the_library_version()
             {
-                Subject.UserAgent.ShouldEqual($"csharp-sparkpost/1.14.0");
+                Subject.UserAgent.ShouldBe($"csharp-sparkpost/1.14.0");
             }
 
             [Test]
             public void It_should_allow_the_user_agent_to_be_changed()
             {
                 var userAgent = Guid.NewGuid().ToString();
                 Subject.UserAgent = userAgent;
-                Subject.UserAgent.ShouldEqual(userAgent);
+                Subject.UserAgent.ShouldBe(userAgent);
             }
         }
     }