| <html> |
| <import src="../resources/chai.sky" /> |
| <import src="../resources/mocha.sky" /> |
| <script> |
| describe('MutationObserver.disconnect', function() { |
| it('should cancel pending delivery', function(done) { |
| var mutations; |
| var observer; |
| var div; |
| |
| function start() { |
| mutations = null; |
| div = document.createElement('div'); |
| |
| observer = new MutationObserver(function(m) { |
| mutations = m; |
| }); |
| |
| observer.observe(div, { attributes: true }); |
| div.setAttribute('foo', 'bar'); |
| observer.disconnect(); |
| setTimeout(next, 0); |
| } |
| |
| function next() { |
| // Disconnecting should cancel any pending delivery... |
| assert.equal(mutations, null); |
| observer.observe(div, { attributes: true }); |
| div.setAttribute('bar', 'baz'); |
| setTimeout(finish, 0); |
| } |
| |
| function finish() { |
| // ...and re-observing should not see any of the previously-generated records. |
| assert.equal(mutations.length, 1); |
| assert.equal(mutations[0].attributeName, "bar"); |
| done(); |
| } |
| |
| start(); |
| }); |
| }); |
| </script> |
| </html> |
