LibJS: Reorganize tests into subfolders

Author: https://github.com/mattco98
Commit: 4c48c9d69d
Pull-request: https://github.com/SerenityOS/serenity/pull/2681
Reviewed-by: https://github.com/linusg

Libraries/LibJS/Tests/builtins/Array/Array.of.js

@@ -0,0 +1,46 @@
+load("test-common.js");
+
+try {
+    assert(Array.of.length === 0);
+
+    assert(typeof Array.of() === "object");
+
+    var a;
+
+    a = Array.of(5);
+    assert(a.length === 1);
+    assert(a[0] === 5);
+
+    a = Array.of("5");
+    assert(a.length === 1);
+    assert(a[0] === "5");
+
+    a = Array.of(Infinity);
+    assert(a.length === 1);
+    assert(a[0] === Infinity);
+
+    a = Array.of(1, 2, 3);
+    assert(a.length === 3);
+    assert(a[0] === 1);
+    assert(a[1] === 2);
+    assert(a[2] === 3);
+
+    a = Array.of([1, 2, 3]);
+    assert(a.length === 1);
+    assert(a[0][0] === 1);
+    assert(a[0][1] === 2);
+    assert(a[0][2] === 3);
+
+    let t = [1, 2, 3];
+    Object.defineProperty(t, 3, { get() { return 4; } });
+    a = Array.of(...t);
+    assert(a.length === 4);
+    assert(a[0] === 1);
+    assert(a[1] === 2);
+    assert(a[2] === 3);
+    assert(a[3] === 4);
+
+    console.log("PASS");
+} catch (e) {
+    console.log("FAIL: " + e);
+}