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describe('Object.setPrototypeOf(o, p)', function() {
it('changes prototype to regular objects', function() {
var obj = {a: 123};
expect(obj instanceof Object).to.equal(true);
// sham requires assignment to work cross browser
obj = Object.setPrototypeOf(obj, null);
expect(obj instanceof Object).to.equal(false);
expect(obj.a).to.equal(123);
});
it('changes prototype to null objects', function() {
var obj = Object.create(null);
obj.a = 456;
expect(obj instanceof Object).to.equal(false);
expect(obj.a).to.equal(456);
// sham requires assignment to work cross browser
obj = Object.setPrototypeOf(obj, {});
expect(obj instanceof Object).to.equal(true);
expect(obj.a).to.equal(456);
});
});
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