22 function testOriginal(root) {  argument
23   assert.deepStrictEqual(root, backup);
24   return root.foo.bar === 'baz' && root.quux[1].corge.length === 6;
27 function definePropertyOnRoot(root) {  argument
28   Object.defineProperty(root, 'xyzzy', {});
31 function definePropertyOnFoo(root) {  argument
32   Object.defineProperty(root.foo, 'xyzzy', {});
35 function deletePropertyOnRoot(root) {  argument
36   delete root.foo;
39 function deletePropertyOnFoo(root) {  argument
40   delete root.foo.bar;
43 function preventExtensionsOnRoot(root) {  argument
44   Object.preventExtensions(root);
47 function preventExtensionsOnFoo(root) {  argument
48   Object.preventExtensions(root.foo);
51 function preventExtensionsOnRootViaSeal(root) {  argument
52   Object.seal(root);
55 function preventExtensionsOnFooViaSeal(root) {  argument
56   Object.seal(root.foo);
59 function preventExtensionsOnRootViaFreeze(root) {  argument
60   Object.freeze(root);
63 function preventExtensionsOnFooViaFreeze(root) {  argument
64   Object.freeze(root.foo);
67 function setOnRoot(root) {  argument
68   root.xyzzy = 'gwak';
71 function setOnFoo(root) {  argument
72   root.foo.xyzzy = 'gwak';
75 function setQux(root) {  argument
76   root.qux = 'gwak';
79 function setQuux(root) {  argument
80   root.quux.push('gwak');
83 function setQuuxItem(root) {  argument
84   root.quux[0] = 'gwak';
87 function setQuuxProperty(root) {  argument
88   root.quux[1].corge = 'gwak';
91 function setPrototypeOfRoot(root) {  argument
92   Object.setPrototypeOf(root, Array);
95 function setPrototypeOfFoo(root) {  argument
96   Object.setPrototypeOf(root.foo, Array);
99 function setPrototypeOfQuux(root) {  argument
100   Object.setPrototypeOf(root.quux, Array);