From dfe887b97439fb240cf3323d38011480596f4921 Mon Sep 17 00:00:00 2001
From: Alan Agius <alanagius@google.com>
Date: Tue, 20 Sep 2022 07:41:49 +0000
Subject: [PATCH] fixup! fix(core): correctly check for `typeof` of undefined
 in `ngDevMode` check

---
 packages/core/test/enable_prod_mode_spec.ts | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 packages/core/test/enable_prod_mode_spec.ts

diff --git a/packages/core/test/enable_prod_mode_spec.ts b/packages/core/test/enable_prod_mode_spec.ts
new file mode 100644
index 0000000000000..e800e10555e87
--- /dev/null
+++ b/packages/core/test/enable_prod_mode_spec.ts
@@ -0,0 +1,19 @@
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+import {enableProdMode} from '@angular/core';
+
+
+describe('enableProdMode', () => {
+  it(`should set 'ngDevMode' to false when 'ngDevMode' is undefined`, () => {
+    const global = globalThis as typeof globalThis & {'ngDevMode': unknown};
+    global.ngDevMode = undefined;
+    enableProdMode();
+    expect(global.ngDevMode).toBeFalse();
+  });
+});