gecko/dom/promise/tests/test_promise.html

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<html>
<head>
<title>Basic Promise Test</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script type="application/javascript"><!--
function promiseResolve() {
ok(Promise, "Promise object should exist");
var promise = new Promise(function(resolver) {
ok(resolver, "PromiseResolver exists");
ok("reject" in resolver, "PromiseResolver.reject exists");
ok("resolve" in resolver, "PromiseResolver.resolve exists");
resolver.resolve(42);
}).then(function(what) {
ok(true, "Then - resolveCb has been called");
is(what, 42, "ResolveCb received 42");
runTest();
}, function() {
ok(false, "Then - rejectCb has been called");
runTest();
});
}
function promiseReject() {
var promise = new Promise(function(resolver) {
resolver.reject(42);
}).then(function(what) {
ok(false, "Then - resolveCb has been called");
runTest();
}, function(what) {
ok(true, "Then - rejectCb has been called");
is(what, 42, "RejectCb received 42");
runTest();
});
}
function promiseException() {
var promise = new Promise(function(resolver) {
throw 42;
}).then(function(what) {
ok(false, "Then - resolveCb has been called");
runTest();
}, function(what) {
ok(true, "Then - rejectCb has been called");
is(what, 42, "RejectCb received 42");
runTest();
});
}
function promiseGC() {
var resolver;
var promise = new Promise(function(r) {
resolver = r;
}).then(function(what) {
ok(true, "Then - promise is still alive");
runTest();
});
promise = null;
SpecialPowers.gc();
SpecialPowers.forceGC();
SpecialPowers.forceCC();
resolver.resolve(42);
}
function promiseAsync() {
var global = "foo";
var f = new Promise(function(r) {
is(global, "foo", "Global should be foo");
r.resolve(42);
is(global, "foo", "Global should still be foo");
setTimeout(function() {
is(global, "bar", "Global should still be bar!");
runTest();
}, 0);
}).then(function() {
global = "bar";
});
is(global, "foo", "Global should still be foo (2)");
}
function promiseDoubleThen() {
var steps = 0;
var promise = new Promise(function(resolver) {
resolver.resolve(42);
});
promise.then(function(what) {
ok(true, "Then.resolve has been called");
is(what, 42, "Value == 42");
steps++;
}, function(what) {
ok(false, "Then.reject has been called");
});
promise.then(function(what) {
ok(true, "Then.resolve has been called");
is(steps, 1, "Then.resolve - step == 1");
is(what, 42, "Value == 42");
runTest();
}, function(what) {
ok(false, "Then.reject has been called");
});
}
function promiseThenException() {
var promise = new Promise(function(resolver) {
resolver.resolve(42);
});
promise.then(function(what) {
ok(true, "Then.resolve has been called");
throw "booh";
}).catch(function(e) {
ok(true, "window.onerror has been called!");
runTest();
});
}
function promiseThenCatchThen() {
var promise = new Promise(function(resolver) {
resolver.resolve(42);
});
var promise2 = promise.then(function(what) {
ok(true, "Then.resolve has been called");
is(what, 42, "Value == 42");
return what + 1;
}, function(what) {
ok(false, "Then.reject has been called");
});
isnot(promise, promise2, "These 2 promise objs are different");
promise2.then(function(what) {
ok(true, "Then.resolve has been called");
is(what, 43, "Value == 43");
return what + 1;
}, function(what) {
ok(false, "Then.reject has been called");
}).catch(function() {
ok(false, "Catch has been called");
}).then(function(what) {
ok(true, "Then.resolve has been called");
is(what, 44, "Value == 44");
runTest();
}, function(what) {
ok(false, "Then.reject has been called");
});
}
function promiseRejectThenCatchThen() {
var promise = new Promise(function(resolver) {
resolver.reject(42);
});
var promise2 = promise.then(function(what) {
ok(false, "Then.resolve has been called");
}, function(what) {
ok(true, "Then.reject has been called");
is(what, 42, "Value == 42");
return what + 1;
});
isnot(promise, promise2, "These 2 promise objs are different");
promise2.then(function(what) {
ok(true, "Then.resolve has been called");
is(what, 43, "Value == 43");
return what+1;
}).catch(function(what) {
ok(false, "Catch has been called");
}).then(function(what) {
ok(true, "Then.resolve has been called");
is(what, 44, "Value == 44");
runTest();
});
}
function promiseRejectThenCatchThen2() {
var promise = new Promise(function(resolver) {
resolver.reject(42);
});
promise.then(function(what) {
ok(true, "Then.resolve has been called");
is(what, 42, "Value == 42");
return what+1;
}).catch(function(what) {
is(what, 42, "Value == 42");
ok(true, "Catch has been called");
return what+1;
}).then(function(what) {
ok(true, "Then.resolve has been called");
is(what, 43, "Value == 43");
runTest();
});
}
function promiseRejectThenCatchExceptionThen() {
var promise = new Promise(function(resolver) {
resolver.reject(42);
});
promise.then(function(what) {
ok(false, "Then.resolve has been called");
}, function(what) {
ok(true, "Then.reject has been called");
is(what, 42, "Value == 42");
throw(what + 1);
}).catch(function(what) {
ok(true, "Catch has been called");
is(what, 43, "Value == 43");
return what + 1;
}).then(function(what) {
ok(true, "Then.resolve has been called");
is(what, 44, "Value == 44");
runTest();
});
}
function promiseThenCatchOrderingResolve() {
var global = 0;
var f = new Promise(function(r) {
r.resolve(42);
});
f.then(function() {
f.then(function() {
global++;
});
f.catch(function() {
global++;
});
f.then(function() {
global++;
});
setTimeout(function() {
is(global, 2, "Many steps... should return 2");
runTest();
}, 0);
});
}
function promiseThenCatchOrderingReject() {
var global = 0;
var f = new Promise(function(r) {
r.reject(42);
})
f.then(function() {}, function() {
f.then(function() {
global++;
});
f.catch(function() {
global++;
});
f.then(function() {}, function() {
global++;
});
setTimeout(function() {
is(global, 2, "Many steps... should return 2");
runTest();
}, 0);
});
}
function promiseNestedPromise() {
new Promise(function(resolver) {
resolver.resolve(new Promise(function(r) {
ok(true, "Nested promise is executed");
r.resolve(42);
}));
}).then(function(value) {
is(value, 42, "Nested promise is executed and then == 42");
runTest();
});
}
function promiseNestedNestedPromise() {
new Promise(function(resolver) {
resolver.resolve(new Promise(function(r) {
ok(true, "Nested promise is executed");
r.resolve(42);
}).then(function(what) { return what+1; }));
}).then(function(value) {
is(value, 43, "Nested promise is executed and then == 43");
runTest();
});
}
function promiseWrongNestedPromise() {
new Promise(function(resolver) {
resolver.resolve(new Promise(function(r) {
ok(true, "Nested promise is executed");
r.resolve(42);
}));
resolver.reject(42);
}).then(function(value) {
is(value, 42, "Nested promise is executed and then == 42");
runTest();
}, function(value) {
ok(false, "This is wrong");
});
}
function promiseLoop() {
new Promise(function(resolver) {
resolver.resolve(new Promise(function(r) {
ok(true, "Nested promise is executed");
r.resolve(new Promise(function(r) {
ok(true, "Nested nested promise is executed");
r.resolve(42);
}));
}));
}).then(function(value) {
is(value, 42, "Nested nested promise is executed and then == 42");
runTest();
}, function(value) {
ok(false, "This is wrong");
});
}
function promiseReject() {
var promise = Promise.reject(42).then(function(what) {
ok(false, "This should not be called");
}, function(what) {
is(what, 42, "Value == 42");
runTest();
});
}
function promiseResolve() {
var promise = Promise.resolve(42).then(function(what) {
is(what, 42, "Value == 42");
runTest();
}, function() {
ok(false, "This should not be called");
});
}
function promiseResolveNestedPromise() {
var promise = Promise.resolve(new Promise(function(r) {
ok(true, "Nested promise is executed");
r.resolve(42);
}, function() {
ok(false, "This should not be called");
})).then(function(what) {
is(what, 42, "Value == 42");
runTest();
}, function() {
ok(false, "This should not be called");
});
}
var tests = [ promiseResolve, promiseReject,
promiseException, promiseGC, promiseAsync,
promiseDoubleThen, promiseThenException,
promiseThenCatchThen, promiseRejectThenCatchThen,
promiseRejectThenCatchThen2,
promiseRejectThenCatchExceptionThen,
promiseThenCatchOrderingResolve,
promiseThenCatchOrderingReject,
promiseNestedPromise, promiseNestedNestedPromise,
promiseWrongNestedPromise, promiseLoop,
promiseReject, promiseResolve,
promiseResolveNestedPromise,
];
function runTest() {
if (!tests.length) {
SimpleTest.finish();
return;
}
var test = tests.shift();
test();
}
var p = SpecialPowers.getBoolPref("dom.promise.enabled");
SpecialPowers.setBoolPref("dom.promise.enabled", false);
ok(!("Promise" in window), "Promise object should not exist if disabled by pref");
SpecialPowers.setBoolPref("dom.promise.enabled", p);
SimpleTest.waitForExplicitFinish();
SpecialPowers.pushPrefEnv({"set": [["dom.promise.enabled", true]]}, runTest);
// -->
</script>
</pre>
</body>
</html>