| test(t => { |
| const c = new AbortController(), |
| s = c.signal; |
| let state = "begin"; |
| |
| assert_false(s.aborted); |
| |
| s.addEventListener("abort", |
| t.step_func(e => { |
| assert_equals(state, "begin"); |
| state = "aborted"; |
| }) |
| ); |
| c.abort(); |
| |
| assert_equals(state, "aborted"); |
| assert_true(s.aborted); |
| |
| c.abort(); |
| }, "AbortController abort() should fire event synchronously"); |
| |
| test(t => { |
| const controller = new AbortController(); |
| const signal = controller.signal; |
| assert_equals(controller.signal, signal, |
| "value of controller.signal should not have changed"); |
| controller.abort(); |
| assert_equals(controller.signal, signal, |
| "value of controller.signal should still not have changed"); |
| }, "controller.signal should always return the same object"); |
| |
| test(t => { |
| const controller = new AbortController(); |
| const signal = controller.signal; |
| let eventCount = 0; |
| signal.onabort = () => { |
| ++eventCount; |
| }; |
| controller.abort(); |
| assert_true(signal.aborted); |
| assert_equals(eventCount, 1, "event handler should have been called once"); |
| controller.abort(); |
| assert_true(signal.aborted); |
| assert_equals(eventCount, 1, |
| "event handler should not have been called again"); |
| }, "controller.abort() should do nothing the second time it is called"); |
| |
| test(t => { |
| const controller = new AbortController(); |
| controller.abort(); |
| controller.signal.onabort = |
| t.unreached_func("event handler should not be called"); |
| }, "event handler should not be called if added after controller.abort()"); |
| |
| test(t => { |
| const controller = new AbortController(); |
| const signal = controller.signal; |
| signal.onabort = t.step_func(e => { |
| assert_equals(e.type, "abort", "event type should be abort"); |
| assert_equals(e.target, signal, "event target should be signal"); |
| assert_false(e.bubbles, "event should not bubble"); |
| // Cobalt does not support Event.isTrusted |
| // assert_true(e.isTrusted, "event should be trusted"); |
| }); |
| controller.abort(); |
| }, "the abort event should have the right properties"); |
| |
| done(); |