diff --git a/src/ll/test/TestMolang.cpp b/src/ll/test/TestMolang.cpp
new file mode 100644
index 0000000000..f05200944b
--- /dev/null
+++ b/src/ll/test/TestMolang.cpp
@@ -0,0 +1,51 @@
+#include "mc/util/molang/MolangScriptArg.h"
+#include "mc/world/level/levelgen/feature/helpers/RenderParams.h"
+
+#include "mc/util/ExpressionNode.h"
+
+
+#include "ll/api/memory/Hook.h"
+#include "mc/server/commands/CommandOutput.h"
+#include "mc/world/events/ServerInstanceEventCoordinator.h"
+
+#include "ll/api/Logger.h"
+#include "mc/server/commands/CommandBlockName.h"
+#include "mc/world/AutomaticID.h"
+
+
+namespace {
+LL_AUTO_TYPE_INSTANCE_HOOK(
+    testtttt,
+    ll::memory::HookPriority::Low,
+    ServerInstanceEventCoordinator,
+    &ServerInstanceEventCoordinator::sendServerThreadStarted,
+    void,
+    ::ServerInstance& ins
+) {
+    static ll::Logger logger("MolangTest");
+    ExpressionNode::registerQueryFunction(
+        "query.is_levilamina",
+        [&](RenderParams&, const std::vector<ExpressionNode>&) -> MolangScriptArg { return MolangScriptArg(true); },
+        "query is_levilamina",
+        MolangQueryFunctionReturnType::Bool,
+        "default",
+        0,
+        UINT64_MAX,
+        {}
+    );
+    ExpressionNode::registerQueryFunction(
+        "query.homo_number",
+        [&](RenderParams&, const std::vector<ExpressionNode>&) -> MolangScriptArg { return MolangScriptArg(114514); },
+        "query homo_number",
+        MolangQueryFunctionReturnType::Number,
+        "default",
+        0,
+        UINT64_MAX,
+        {}
+    );
+    auto parm = RenderParams();
+    logger.info("query.is_levilamina: {}", ExpressionNode("query.is_levilamina").evalAsFloat(parm));
+    logger.info("query.homo_number: {}", ExpressionNode("query.homo_number").evalAsFloat(parm));
+    origin(ins);
+}
+} // namespace
diff --git a/src/mc/util/molang/MolangMemberArray.h b/src/mc/util/molang/MolangMemberArray.h
index f3b1410867..a7be618518 100644
--- a/src/mc/util/molang/MolangMemberArray.h
+++ b/src/mc/util/molang/MolangMemberArray.h
@@ -2,8 +2,6 @@
 
 #include "mc/_HeaderOutputPredefine.h"
 
-class MolangMemberVariable;
-
 // auto generated inclusion list
 #include "mc/util/molang/MolangStruct_BaseAndPattern.h"
 #include "mc/util/molang/MolangStruct_MinAndMax.h"
@@ -19,6 +17,7 @@ class MolangMemberVariable;
 #include "mc/util/molang/MolangStruct_XYZ.h"
 
 struct MolangScriptArg;
+class MolangMemberVariable;
 
 // auto generated forward declare list
 // clang-format off