| <!DOCTYPE html> |
| <head> |
| <script src="../resources/js-test.js"></script> |
| <script src="resources/netinfo_common.js"></script> |
| </head> |
| <body> |
| <script> |
| |
| description("Tests that it's okay to unregister the event listener while handling the event."); |
| |
| shouldBe('typeof window.internals.observeGC', '"function"', |
| 'this test requires window.internals'); |
| |
| var otherHandler = function(e) { |
| shouldBe('connection.type', 'initialType'); |
| shouldBe('connection.downlinkMax', 'initialDownlinkMax'); |
| |
| finishJSTest(); |
| }; |
| |
| var handler = function(e) { |
| shouldBe('connection.type', 'newConnectionType'); |
| shouldBe('connection.downlinkMax', 'newDownlinkMax'); |
| connection.removeEventListener('change', handler); |
| connection.addEventListener('change', otherHandler); |
| internals.setNetworkConnectionInfo(initialType, initialDownlinkMax); |
| }; |
| |
| connection.addEventListener('change', handler); |
| internals.setNetworkConnectionInfo(newConnectionType, newDownlinkMax); |
| |
| </script> |
| </body> |
| </html> |
