| <!DOCTYPE HTML> |
| <body/> |
| <script src="../../../resources/testharness.js"></script> |
| <script src="../../../resources/testharnessreport.js"></script> |
| |
| <!-- This test is run with normal layout tests with passiveEventListeners |
| enabled and in virtual/stable with passiveEventListeners disabled --> |
| <script> |
| test(function(t) { |
| var supportsPassive = false; |
| var query_function = function(e) {}; |
| var query_options = { |
| get passive() { |
| supportsPassive = true; |
| return false; |
| }, |
| get dummy() { |
| assert_unreached("dummy value getter invoked"); |
| return false; |
| } |
| }; |
| |
| document.addEventListener('test_event', query_function, query_options); |
| assert_equals(supportsPassive, internals.runtimeFlags.passiveEventListenersEnabled); |
| supportsPassive = false; |
| document.removeEventListener('test_event', query_function, query_options); |
| assert_equals(supportsPassive, internals.runtimeFlags.passiveEventListenersEnabled); |
| t.done(); |
| }, "Supports Passive"); |
| </script> |
