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/WeakRef/WeakRef.js

@@ -0,0 +1,35 @@
+test("constructor properties", () => {
+    expect(WeakRef).toHaveLength(1);
+    expect(WeakRef.name).toBe("WeakRef");
+});
+
+describe("errors", () => {
+    test("invalid array iterators", () => {
+        [-100, Infinity, NaN, 152n, undefined].forEach(value => {
+            expect(() => {
+                new WeakRef(value);
+            }).toThrowWithMessage(TypeError, "cannot be held weakly");
+        });
+    });
+    test("called without new", () => {
+        expect(() => {
+            WeakRef();
+        }).toThrowWithMessage(TypeError, "WeakRef constructor must be called with 'new'");
+    });
+});
+
+describe("normal behavior", () => {
+    test("typeof", () => {
+        expect(typeof new WeakRef({})).toBe("object");
+    });
+
+    test("constructor with single object argument", () => {
+        var a = new WeakRef({});
+        expect(a instanceof WeakRef).toBeTrue();
+    });
+
+    test("constructor with single symbol argument", () => {
+        var a = new WeakRef(Symbol());
+        expect(a instanceof WeakRef).toBeTrue();
+    });
+});