| <html> |
| <link rel="import" href="../resources/chai.html" /> |
| <link rel="import" href="../resources/mocha.html" /> |
| <script> |
| describe('MutationObserver', function() { |
| var observer = new MutationObserver(function(mutations) { }); |
| |
| it('should have methods', function() { |
| assert.equal(typeof observer.observe, 'function'); |
| assert.equal(typeof observer.disconnect, 'function'); |
| }); |
| it('should throw with incorrect constructor args', function() { |
| assert.throw(function() { |
| new MutationObserver({ handleEvent: function() {} }); |
| }, TypeError); |
| assert.throw(function() { |
| new MutationObserver({}); |
| }, TypeError); |
| assert.throw(function() { |
| new MutationObserver(42); |
| }, TypeError); |
| assert.throw(function() { |
| new MutationObserver("foo"); |
| }, TypeError); |
| }); |
| }); |
| </script> |
| </html> |
