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296fa2512b
- Update CSS tests to revision e05bfd5e30ed662c2f8a353577003f8eed230180. - Update web-platform-tests to revision a052787dd5c069a340031011196b73affbd68cd9.
119 lines
2.9 KiB
HTML
119 lines
2.9 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>Async Tests and Promises</title>
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</head>
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<body>
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<h1>Async Tests and Promises</h1>
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<p>This test assumes ECMAScript 6 Promise support. Some failures are expected.</p>
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<div id="log"></div>
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<script src="../testharness.js"></script>
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<script src="../testharnessreport.js"></script>
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<script>
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test(function() {
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var p = new Promise(function(resolve, reject) {});
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assert_true('then' in p);
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assert_equals(typeof Promise.resolve, 'function');
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assert_equals(typeof Promise.reject, 'function');
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}, "Promises are supported in your browser");
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(function() {
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var t = async_test("Promise resolution");
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t.step(function() {
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Promise.resolve('x').then(
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t.step_func(function(value) {
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assert_equals(value, 'x');
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t.done();
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}),
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t.unreached_func('Promise should not reject')
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);
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});
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}());
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(function() {
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var t = async_test("Promise rejection");
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t.step(function() {
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Promise.reject(Error('fail')).then(
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t.unreached_func('Promise should reject'),
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t.step_func(function(reason) {
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assert_true(reason instanceof Error);
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assert_equals(reason.message, 'fail');
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t.done();
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})
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);
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});
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}());
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(function() {
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var t = async_test("Promises resolution chaining");
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t.step(function() {
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var resolutions = [];
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Promise.resolve('a').then(
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t.step_func(function(value) {
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resolutions.push(value);
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return 'b';
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})
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).then(
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t.step_func(function(value) {
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resolutions.push(value);
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return 'c';
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})
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).then(
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t.step_func(function(value) {
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resolutions.push(value);
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assert_array_equals(resolutions, ['a', 'b', 'c']);
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t.done();
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})
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).catch(
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t.unreached_func('promise should not have rejected')
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);
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});
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}());
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(function() {
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var t = async_test("Use of step_func with Promises");
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t.step(function() {
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var resolutions = [];
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Promise.resolve('x').then(
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t.step_func_done(),
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t.unreached_func('Promise should not have rejected')
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);
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});
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}());
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(function() {
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var t = async_test("Promises and test assertion failures (should fail)");
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t.step(function() {
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var resolutions = [];
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Promise.resolve('x').then(
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t.step_func(function(value) {
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assert_true(false, 'This failure is expected');
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})
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).then(
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t.unreached_func('Promise should not have resolved')
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).catch(
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t.unreached_func('Promise should not have rejected')
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);
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});
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}());
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(function() {
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var t = async_test("Use of unreached_func with Promises (should fail)");
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t.step(function() {
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var resolutions = [];
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var r;
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var p = new Promise(function(resolve, reject) {
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// Reject instead of resolve, to demonstrate failure.
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reject(123);
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});
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p.then(
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function(value) {
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assert_equals(value, 123, 'This should not actually happen');
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},
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t.unreached_func('This failure is expected')
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);
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});
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}());
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</script>
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