feat: implement FluentAssertion extension for JsonElement

Vonage.Test/Common/Extensions/FluentAssertionExtensions.cs

@@ -1,4 +1,5 @@
-using System.Threading.Tasks;
+using System.Text.Json;
+using System.Threading.Tasks;
 using Vonage.Common.Monads;
 
 namespace Vonage.Test.Common.Extensions;
@@ -13,4 +14,7 @@ public static class FluentAssertionExtensions
 
     public static ResultAsyncAssertionExtensions<T> Should<T>(this Task<Result<T>> instance) =>
         new ResultAsyncAssertionExtensions<T>(instance);
+
+    public static JsonElementAssertionExtensions Should(this JsonElement instance) =>
+        new JsonElementAssertionExtensions(instance);
 }

Vonage.Test/Common/Extensions/JsonElementAssertionExtensions.cs

@@ -0,0 +1,25 @@
+using System.Text.Json;
+using FluentAssertions;
+using FluentAssertions.Execution;
+using FluentAssertions.Primitives;
+
+namespace Vonage.Test.Common.Extensions;
+
+public class JsonElementAssertionExtensions : ReferenceTypeAssertions<JsonElement, JsonElementAssertionExtensions>
+{
+    public JsonElementAssertionExtensions(JsonElement subject) : base(subject)
+    {
+    }
+
+    protected override string Identifier => "JsonElement";
+
+    public AndConstraint<JsonElementAssertionExtensions> Be(JsonElement expected)
+    {
+        Execute.Assertion
+            .WithExpectation("Expected {context:option} to be {0}{reason}, ", expected)
+            .Given(() => this.Subject)
+            .ForCondition(subject => subject.GetRawText().Equals(expected.GetRawText()))
+            .FailWith("but found {0}.", this.Subject);
+        return new AndConstraint<JsonElementAssertionExtensions>(this);
+    }
+}