From dc70fa9f93f44349e70749a0131bcaa347d42a21 Mon Sep 17 00:00:00 2001
From: sinclair <haydn.developer@gmail.com>
Date: Fri, 3 Nov 2023 00:37:39 +0900
Subject: [PATCH] Version and Static Tests

---
 package-lock.json     |  4 ++--
 package.json          |  2 +-
 src/typebox.ts        |  1 +
 test/static/record.ts | 48 +++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 52 insertions(+), 3 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 613c25ef0..a8b8a5930 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@sinclair/typebox",
-  "version": "0.31.21",
+  "version": "0.31.22",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@sinclair/typebox",
-      "version": "0.31.21",
+      "version": "0.31.22",
       "license": "MIT",
       "devDependencies": {
         "@sinclair/hammer": "^0.18.0",
diff --git a/package.json b/package.json
index 0b8deb405..2cb992096 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@sinclair/typebox",
-  "version": "0.31.21",
+  "version": "0.31.22",
   "description": "JSONSchema Type Builder with Static Type Resolution for TypeScript",
   "keywords": [
     "typescript",
diff --git a/src/typebox.ts b/src/typebox.ts
index 9a4d248b7..e105237f6 100644
--- a/src/typebox.ts
+++ b/src/typebox.ts
@@ -2915,6 +2915,7 @@ export class JsonTypeBuilder extends TypeBuilder {
   }
   /** `[Json]` Creates a Enum type */
   public Enum<V extends TEnumValue, T extends Record<TEnumKey, V>>(item: T, options: SchemaOptions = {}): TEnum<T> {
+    if (ValueGuard.IsUndefined(item)) return this.Throw('Enum undefined or empty')
     // prettier-ignore
     const values1 = Object.getOwnPropertyNames(item).filter((key) => isNaN(key as any)).map((key) => item[key]) as T[keyof T][]
     const values2 = [...new Set(values1)]
diff --git a/test/static/record.ts b/test/static/record.ts
index 1951bd4cd..e21356595 100644
--- a/test/static/record.ts
+++ b/test/static/record.ts
@@ -128,3 +128,51 @@ import { Type, Static } from '@sinclair/typebox'
   const I = Type.Intersect([R, T])
   Expect(I).ToStatic<Record<`key${number}`, number> & { x: number; y: number }>()
 }
+{
+  // expect T as Object
+  enum E {
+    A,
+    B,
+    C,
+  }
+  const T = Type.Record(Type.Enum(E), Type.Number())
+  Expect(T).ToStatic<{
+    0: number
+    1: number
+    2: number
+  }>
+}
+{
+  // expect T as Partial Object
+  enum E {
+    A,
+    B,
+    C,
+  }
+  const T = Type.Partial(Type.Record(Type.Enum(E), Type.Number()))
+  Expect(T).ToStatic<{
+    0?: number
+    1?: number
+    2?: number
+  }>
+}
+{
+  // expect T to support named properties
+  enum E {
+    A = 'A',
+    B = 'B',
+    C = 'C',
+  }
+  const T = Type.Record(Type.Enum(E), Type.Number())
+  Expect(T).ToStatic<{
+    A: number
+    B: number
+    C: number
+  }>
+}
+{
+  // expect T to support named properties
+  enum E {}
+  const T = Type.Record(Type.Enum(E), Type.Number())
+  Expect(T).ToStatic<{}>
+}