diff options
Diffstat (limited to 'js/vendor/es6-shim/test-sham/set-prototype-of.js')
-rw-r--r-- | js/vendor/es6-shim/test-sham/set-prototype-of.js | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/js/vendor/es6-shim/test-sham/set-prototype-of.js b/js/vendor/es6-shim/test-sham/set-prototype-of.js new file mode 100644 index 000000000..d68f930fd --- /dev/null +++ b/js/vendor/es6-shim/test-sham/set-prototype-of.js @@ -0,0 +1,24 @@ +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); + }); + +}); + |