feat: add IDisposable test (#1855)

Refit.GeneratorTests/InterfaceTests.cs

@@ -98,4 +98,17 @@ public interface IGeneratedInterface
             }
             """);
     }
+
+    [Fact]
+    public Task DisposableTest()
+    {
+        return Fixture.VerifyForDeclaration(
+            """
+            public interface IGeneratedInterface : IDisposable
+            {
+                [Get("/users")]
+                Task<string> Get();
+            }
+            """);
+    }
 }

Refit.GeneratorTests/_snapshots/InterfaceTests.DisposableTest#IGeneratedInterface.g.verified.cs

@@ -0,0 +1,59 @@
+//HintName: IGeneratedInterface.g.cs
+#nullable disable
+#pragma warning disable
+namespace Refit.Implementation
+{
+
+    partial class Generated
+    {
+
+    /// <inheritdoc />
+    [global::System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
+    [global::System.Diagnostics.DebuggerNonUserCode]
+    [global::RefitInternalGenerated.PreserveAttribute]
+    [global::System.Reflection.Obfuscation(Exclude=true)]
+    [global::System.ComponentModel.EditorBrowsable(global::System.ComponentModel.EditorBrowsableState.Never)]
+    partial class IGeneratedInterface
+        : global::IGeneratedInterface
+
+    {
+        /// <inheritdoc />
+        public global::System.Net.Http.HttpClient Client { get; }
+        readonly global::Refit.IRequestBuilder requestBuilder;
+
+        /// <inheritdoc />
+        public IGeneratedInterface(global::System.Net.Http.HttpClient client, global::Refit.IRequestBuilder requestBuilder)
+        {
+            Client = client;
+            this.requestBuilder = requestBuilder;
+        }
+
+
+        /// <inheritdoc />
+        public async global::System.Threading.Tasks.Task<string> Get()
+        {
+            var ______arguments = global::System.Array.Empty<object>();
+            var ______func = requestBuilder.BuildRestResultFuncForMethod("Get", global::System.Array.Empty<global::System.Type>() );
+
+            return await ((global::System.Threading.Tasks.Task<string>)______func(this.Client, ______arguments)).ConfigureAwait(false);
+        }
+
+        /// <inheritdoc />
+        async global::System.Threading.Tasks.Task<string> global::IGeneratedInterface.Get()
+        {
+            var ______arguments = global::System.Array.Empty<object>();
+            var ______func = requestBuilder.BuildRestResultFuncForMethod("Get", global::System.Array.Empty<global::System.Type>() );
+
+            return await ((global::System.Threading.Tasks.Task<string>)______func(this.Client, ______arguments)).ConfigureAwait(false);
+        }
+
+        /// <inheritdoc />
+        void global::System.IDisposable.Dispose()
+        {
+                Client?.Dispose();
+        }
+    }
+    }
+}
+
+#pragma warning restore