Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibJS/Tests/builtins/Object/Object.isFrozen.js

@@ -0,0 +1,27 @@
+test("length is 1", () => {
+    expect(Object.isFrozen).toHaveLength(1);
+});
+
+describe("normal behavior", () => {
+    test("returns true for non-object argument", () => {
+        expect(Object.isFrozen(42)).toBeTrue();
+        expect(Object.isFrozen("foobar")).toBeTrue();
+    });
+
+    test("returns false for regular object", () => {
+        const o = { foo: "bar" };
+        expect(Object.isFrozen(o)).toBeFalse();
+    });
+
+    test("returns true for frozen object", () => {
+        const o = { foo: "bar" };
+        Object.freeze(o);
+        expect(Object.isFrozen(o)).toBeTrue();
+    });
+
+    test("returns true for non-extensible empty object", () => {
+        const o = {};
+        Object.preventExtensions(o);
+        expect(Object.isFrozen(o)).toBeTrue();
+    });
+});