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<html>
<head>
<script type="text/javascript" src="../MochiKit/Base.js"></script>
<script type="text/javascript" src="../MochiKit/Async.js"></script>
<script type="text/javascript" src="../MochiKit/Iter.js"></script>
<script type="text/javascript" src="../MochiKit/DOM.js"></script>
<script type="text/javascript" src="../MochiKit/Style.js"></script>
<script type="text/javascript" src="SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="SimpleTest/test.css">
</head>
<body>
<pre id="test">
<script type="text/javascript">
try {
var increment = function (res) {
return res + 1;
}
var throwStuff = function (res) {
throw new GenericError(res);
}
var catchStuff = function (res) {
return res.message;
}
var returnError = function (res) {
return new GenericError(res);
}
var anythingOkCallback = function (msg) {
return function (res) {
ok(true, msg);
return res;
}
}
var testEqCallback = function () {
/*
sort of emulate how deferreds work in Twisted
for "convenient" testing
*/
var args = [];
for (var i = 0; i < arguments.length; i++) {
args.push(arguments[i]);
}
return function (res) {
var nargs = args.slice();
nargs.unshift(res);
is.apply(this, nargs);
return res;
}
}
var neverHappen = function (d) {
ok(false, "this should never happen");
}
/*
Test normal Deferred operation
*/
var d = new Deferred();
d.addCallback(testEqCallback(1, "pre-deferred callback"));
d.callback(1);
d.addCallback(increment);
d.addCallback(testEqCallback(2, "post-deferred callback"));
d.addCallback(throwStuff);
d.addCallback(neverHappen);
d.addErrback(catchStuff);
d.addCallback(testEqCallback(2, "throw -> err, catch -> success"));
d.addCallback(returnError);
d.addCallback(neverHappen);
d.addErrback(catchStuff);
d.addCallback(testEqCallback(2, "return -> err, catch -> succcess"));
/*
Test Deferred cancellation
*/
var cancelled = function (d) {
ok(true, "canceller called!");
}
var cancelledError = function (res) {
ok(res instanceof CancelledError, "CancelledError here");
}
d = new Deferred(cancelled);
d.addCallback(neverHappen);
d.addErrback(cancelledError);
d.cancel();
/*
Test succeed / fail
*/
d = succeed(1).addCallback(testEqCallback(1, "succeed"));
// default error
d = fail().addCallback(neverHappen);
d = d.addErrback(anythingOkCallback("default fail"));
// default wrapped error
d = fail("web taco").addCallback(neverHappen).addErrback(catchStuff);
d = d.addCallback(testEqCallback("web taco", "wrapped fail"));
// default unwrapped error
d = fail(new GenericError("ugh")).addCallback(neverHappen).addErrback(catchStuff);
d = d.addCallback(testEqCallback("ugh", "unwrapped fail"));
/*
Test deferred dependencies
*/
var deferredIncrement = function (res) {
var rval = succeed(res);
rval.addCallback(increment);
return rval;
}
d = succeed(1).addCallback(deferredIncrement);
d = d.addCallback(testEqCallback(2, "dependent deferred succeed"));
var deferredFailure = function (res) {
return fail(res);
}
d = succeed("ugh").addCallback(deferredFailure).addErrback(catchStuff);
d = d.addCallback(testEqCallback("ugh", "dependent deferred fail"));
/*
Test double-calling, double-failing, etc.
*/
try {
succeed(1).callback(2);
neverHappen();
} catch (e) {
ok(e instanceof AlreadyCalledError, "double-call");
}
try {
fail(1).errback(2);
neverHappen();
} catch (e) {
ok(e instanceof AlreadyCalledError, "double-fail");
}
try {
d = succeed(1);
d.cancel();
d = d.callback(2);
ok(true, "swallowed one callback, no canceller");
d.callback(3);
neverHappen();
} catch (e) {
ok(e instanceof AlreadyCalledError, "swallow cancel");
}
try {
d = new Deferred(cancelled);
d.cancel();
d = d.callback(1);
neverHappen();
} catch (e) {
ok(e instanceof AlreadyCalledError, "non-swallowed cancel");
}
/* Test incorrect Deferred usage */
d = new Deferred();
try {
d.callback(new Deferred());
neverHappen();
} catch (e) {
ok (e instanceof Error, "deferred not allowed for callback");
}
d = new Deferred();
try {
d.errback(new Deferred());
neverHappen();
} catch (e) {
ok (e instanceof Error, "deferred not allowed for errback");
}
d = new Deferred();
(new Deferred()).addCallback(function () { return d; }).callback(1);
try {
d.addCallback(function () {});
neverHappen();
} catch (e) {
ok (e instanceof Error, "chained deferred not allowed to be re-used");
}
/*
evalJSONRequest test
*/
var fakeReq = {"responseText":'[1,2,3,4,"asdf",{"a":["b", "c"]}]'};
var obj = [1,2,3,4,"asdf",{"a":["b", "c"]}];
isDeeply(obj, evalJSONRequest(fakeReq), "evalJSONRequest");
try {
MochiKit.Async.getXMLHttpRequest();
ok(true, "getXMLHttpRequest");
} catch (e) {
ok(false, "no love from getXMLHttpRequest");
}
var lock = new DeferredLock();
var lst = [];
var pushNumber = function (x) {
return function (res) { lst.push(x); }
};
lock.acquire().addCallback(pushNumber(1));
is( compare(lst, [1]), 0, "lock acquired" );
lock.acquire().addCallback(pushNumber(2));
is( compare(lst, [1]), 0, "lock waiting for release" );
lock.acquire().addCallback(pushNumber(3));
is( compare(lst, [1]), 0, "lock waiting for release" );
lock.release();
is( compare(lst, [1, 2]), 0, "lock passed on" );
lock.release();
is( compare(lst, [1, 2, 3]), 0, "lock passed on" );
lock.release();
try {
lock.release();
ok( false, "over-release didn't raise" );
} catch (e) {
ok( true, "over-release raised" );
}
lock.acquire().addCallback(pushNumber(1));
is( compare(lst, [1, 2, 3, 1]), 0, "lock acquired" );
lock.release();
is( compare(lst, [1, 2, 3, 1]), 0, "lock released" );
var d = new Deferred();
lst = [];
d.addCallback(operator.add, 2);
d.addBoth(operator.add, 4);
d.addCallback(bind(lst.push, lst));
d.callback(1);
is( lst[0], 7, "auto-partial addCallback addBoth" );
d.addCallback(function () { throw new Error(); });
ebTest = function(a, b) {
map(bind(lst.push, lst), arguments);
};
d.addErrback(ebTest, "foo");
is( lst[1], "foo", "auto-partial errback" );
is( lst.length, 3, "auto-partial errback" );
/*
Test DeferredList
*/
var callList = [new Deferred(), new Deferred(), new Deferred()];
callList[0].addCallback(increment);
callList[1].addCallback(increment);
callList[2].addCallback(increment);
var defList = new DeferredList(callList);
ok(defList instanceof Deferred, "DeferredList looks like a Deferred");
callList[0].callback(3);
callList[1].callback(5);
callList[2].callback(4);
defList.addCallback(function (lst) {
is( arrayEqual(lst, [[true, 4], [true, 6], [true, 5]]), 1,
"deferredlist result ok" );
});
/*
Test fireOnOneCallback
*/
var callList2 = [new Deferred(), new Deferred(), new Deferred()];
callList2[0].addCallback(increment);
callList2[1].addCallback(increment);
callList2[2].addCallback(increment);
var defList2 = new DeferredList(callList2, true);
callList2[1].callback(5);
callList2[0].callback(3);
callList2[2].callback(4);
defList2.addCallback(function (lst) {
is( arrayEqual(lst, [1, 6]), 1, "deferredlist fireOnOneCallback ok" );
});
/*
Test fireOnOneErrback
*/
var callList3 = [new Deferred(), new Deferred(), new Deferred()];
callList3[0].addCallback(increment);
callList3[1].addCallback(throwStuff);
callList3[2].addCallback(increment);
var defList3 = new DeferredList(callList3, false, true);
defList3.callback = neverHappen;
callList3[0].callback(3);
callList3[1].callback("foo");
callList3[2].callback(4);
defList3.addErrback(function (err) {
is( err.message, "foo", "deferredlist fireOnOneErrback ok" );
});
/*
Test consumeErrors
*/
var callList4 = [new Deferred(), new Deferred(), new Deferred()];
callList4[0].addCallback(increment);
callList4[1].addCallback(throwStuff);
callList4[2].addCallback(increment);
var defList4 = new DeferredList(callList4, false, false, true);
defList4.addErrback(neverHappen);
callList4[1].addCallback(function (arg) {
is(arg, null, "deferredlist consumeErrors ok" );
});
callList4[0].callback(3);
callList4[1].callback("foo");
callList4[2].callback(4);
/*
Test gatherResults
*/
var callList5 = [new Deferred(), new Deferred(), new Deferred()];
callList5[0].addCallback(increment);
callList5[1].addCallback(increment);
callList5[2].addCallback(increment);
var gatherRet = gatherResults(callList5);
callList5[0].callback(3);
callList5[1].callback(5);
callList5[2].callback(4);
gatherRet.addCallback(function (lst) {
is( arrayEqual(lst, [4, 6, 5]), 1,
"gatherResults result ok" );
});
/*
Test maybeDeferred
*/
var maybeDef = maybeDeferred(increment, 4);
maybeDef.addCallback(testEqCallback(5, "maybeDeferred sync ok"));
var maybeDef2 = deferredIncrement(8);
maybeDef2.addCallback(testEqCallback(9, "maybeDeferred async ok"));
ok( true, "synchronous test suite finished!");
var t = (new Date().getTime());
SimpleTest.waitForExplicitFinish();
checkCallLater = function (originalTime) {
is(originalTime, t, "argument passed in OK");
is(arguments.length, 1, "argument count right");
};
var lock = new DeferredLock();
withLock = function (msg) {
var cb = partial.apply(null, extend(null, arguments, 1));
var d = lock.acquire().addCallback(cb);
d.addErrback(ok, false, msg);
d.addCallback(function () {
ok(true, msg);
lock.release();
});
return d;
}
withLock("callLater", function () {
return callLater(0.05, checkCallLater, t);
});
withLock("wait", function () {
return wait(0.05, t).addCallback(checkCallLater);
});
withLock("loadJSONDoc", function () {
var d = loadJSONDoc("test_MochiKit-Async.json");
d.addCallback(function (doc) {
is(doc.passed, true, "loadJSONDoc passed");
});
d.addErrback(function (doc) {
ok(false, "loadJSONDoc failed");
});
return d;
});
lock.acquire().addCallback(function () {
ok(true, "async suite finished");
SimpleTest.finish();
});
} catch (err) {
var s = "test suite failure!\n";
var o = {};
var k = null;
for (k in err) {
// ensure unique keys?!
if (!o[k]) {
s += k + ": " + err[k] + "\n";
o[k] = err[k];
}
}
ok ( false, s );
SimpleTest.finish();
}
</script>
</pre>
</body>
</html>
|
