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/operators/logical-nullish-coalescing.js

@@ -0,0 +1,50 @@
+test("booleans", () => {
+    expect(true ?? true).toBeTrue();
+    expect(false ?? false).toBeFalse();
+    expect(true ?? false).toBeTrue();
+    expect(false ?? true).toBeFalse();
+});
+
+test("strings", () => {
+    expect("" ?? "").toBe("");
+    expect("" ?? false).toBe("");
+    expect("" ?? true).toBe("");
+    expect(false ?? "").toBeFalse();
+    expect(true ?? "").toBeTrue();
+    expect("foo" ?? "bar").toBe("foo");
+    expect("foo" ?? false).toBe("foo");
+    expect("foo" ?? true).toBe("foo");
+    expect(false ?? "bar").toBeFalse();
+    expect(true ?? "bar").toBeTrue();
+});
+
+test("numbers", () => {
+    expect(false ?? 1 === 2).toBeFalse();
+    expect(true ?? 1 === 2).toBeTrue();
+    expect(0 ?? false).toBe(0);
+    expect(0 ?? true).toBe(0);
+    expect(42 ?? false).toBe(42);
+    expect(42 ?? true).toBe(42);
+    expect(false ?? 0).toBeFalse();
+    expect(true ?? 0).toBeTrue();
+    expect(false ?? 42).toBeFalse();
+    expect(true ?? 42).toBeTrue();
+});
+
+test("objects", () => {
+    expect([] ?? false).toHaveLength(0);
+    expect([] ?? true).toHaveLength(0);
+    expect(false ?? []).toBeFalse();
+    expect(true ?? []).toBeTrue();
+});
+
+test("null & undefined", () => {
+    expect(null ?? false).toBeFalse();
+    expect(null ?? true).toBeTrue();
+    expect(false ?? null).toBeFalse();
+    expect(true ?? null).toBeTrue();
+    expect(undefined ?? false).toBeFalse();
+    expect(undefined ?? true).toBeTrue();
+    expect(false ?? undefined).toBeFalse();
+    expect(true ?? undefined).toBeTrue();
+});