From a1f5693180012f2eb05febead7d6a5eb4c27a97e Mon Sep 17 00:00:00 2001
From: DHR60 <dehongren60@gmail.com>
Date: Tue, 5 May 2026 16:28:16 +0800
Subject: [PATCH] Add tests

---
 v2rayN/ServiceLib.Tests/Fmt/InnerFmtTests.cs | 37 ++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 v2rayN/ServiceLib.Tests/Fmt/InnerFmtTests.cs

diff --git a/v2rayN/ServiceLib.Tests/Fmt/InnerFmtTests.cs b/v2rayN/ServiceLib.Tests/Fmt/InnerFmtTests.cs
new file mode 100644
index 00000000..91df67f4
--- /dev/null
+++ b/v2rayN/ServiceLib.Tests/Fmt/InnerFmtTests.cs
@@ -0,0 +1,37 @@
+using AwesomeAssertions;
+using ServiceLib.Enums;
+using ServiceLib.Handler.Fmt;
+using ServiceLib.Tests.CoreConfig;
+using Xunit;
+
+namespace ServiceLib.Tests.Fmt;
+
+public class InnerFmtTests
+{
+    [Fact]
+    public void ToUriAndResolve_ShouldRoundTripPolicyGroupReferences()
+    {
+        var childA = CoreConfigTestFactory.CreateSocksNode(ECoreType.Xray, "child-a", "child-a");
+        var childB = CoreConfigTestFactory.CreateVmessNode(ECoreType.Xray, "child-b", "child-b");
+        var group = CoreConfigTestFactory.CreatePolicyGroupNode(ECoreType.Xray, "group-1", "group-1",
+            [childA.IndexId, childB.IndexId]);
+        group.SetProtocolExtra(group.GetProtocolExtra() with { SubChildItems = "original-sub" });
+
+        var uri = InnerFmt.ToUri([group, childA, childB]);
+
+        uri.Should().NotBeNullOrWhiteSpace();
+
+        var resolved = InnerFmt.Resolve(uri!, "sub-123");
+
+        resolved.Should().NotBeNull();
+        resolved.Should().HaveCount(3);
+
+        var resolvedGroup = resolved!.Single(x => x.Remarks == group.Remarks);
+        var resolvedChildA = resolved.Single(x => x.Remarks == childA.Remarks);
+        var resolvedChildB = resolved.Single(x => x.Remarks == childB.Remarks);
+
+        resolvedGroup.ConfigType.Should().Be(EConfigType.PolicyGroup);
+        resolvedGroup.GetProtocolExtra().SubChildItems.Should().Be("sub-123");
+        resolvedGroup.GetProtocolExtra().ChildItems.Should().Be($"{resolvedChildA.IndexId},{resolvedChildB.IndexId}");
+    }
+}