test_play_promise_16.html (1417B)
1 <!DOCTYPE HTML> 2 <html> 3 <head> 4 <title>Media test: promise-based play() method</title> 5 <script src="/tests/SimpleTest/SimpleTest.js"></script> 6 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> 7 <script type="text/javascript" src="manifest.js"></script> 8 </head> 9 <body> 10 <pre id="test"> 11 12 <script> 13 // Name: loadAlgorithmResolveOrdering 14 // Case: invoke load() on an element should resolve pending promises in order. 15 // Expected result: the pending promises are resolved in order. 16 17 let manager = new MediaTestManager; 18 19 function initTest(test, token) { 20 manager.started(token); 21 22 let element = document.createElement(getMajorMimeType(test.type)); 23 element.preload = "auto"; 24 element.src = test.name; 25 once(element, "canplay").then(() => { 26 let firstPromiseResolved = false; 27 28 // play 29 element.play().then( 30 () => { firstPromiseResolved = true; }, 31 () => { ok(false, `loadAlgorithmResolveOrdering(${token}) should not be rejected.`); } 32 ); 33 34 // play again 35 element.play().then( 36 () => { ok(firstPromiseResolved, `loadAlgorithmResolveOrdering(${token}), the first play should already be resolved.`); }, 37 () => { ok(false, `loadAlgorithmResolveOrdering(${token}) should not be rejected.`); } 38 ).then( () => { manager.finished(token); } ); 39 40 // triger load 41 element.src = test.name; 42 }); 43 } 44 45 manager.runTests(gSmallTests, initTest); 46 47 </script>