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connect.js
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connect.js
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if(!dojo._hasResource["tests._base.connect"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["tests._base.connect"] = true;
dojo.provide("tests._base.connect");
hub = function(){
}
failures = 0;
bad = function(){
failures++;
}
good = function(){
}
// make 'iterations' connections to hub
// roughly half of which will be to 'good' and
// half to 'bad'
// all connections to 'bad' are disconnected
// test can then be performed on the values
// 'failures' and 'successes'
markAndSweepTest = function(iterations){
var marked = [];
// connections
for(var i=0; i<iterations; i++){
if(Math.random() < 0.5){
marked.push(dojo.connect('hub', bad));
}else{
dojo.connect('hub', good);
}
}
// Randomize markers (only if the count isn't very high)
if(i < Math.pow(10, 4)){
var rm = [ ];
while(marked.length){
var m = Math.floor(Math.random() * marked.length);
rm.push(marked[m]);
marked.splice(m, 1);
}
marked = rm;
}
for(var m=0; m<marked.length; m++){
dojo.disconnect(marked[m]);
}
// test
failures = 0;
hub();
// return number of disconnected functions that fired (should be 0)
return failures;
}
markAndSweepSubscribersTest = function(iterations){
var topic = "hubbins";
var marked = [];
// connections
for(var i=0; i<iterations; i++){
if(Math.random() < 0.5){
marked.push(dojo.subscribe(topic, bad));
}else{
dojo.subscribe(topic, good);
}
}
// Randomize markers (only if the count isn't very high)
if(i < Math.pow(10, 4)){
var rm = [ ];
while(marked.length){
var m = Math.floor(Math.random() * marked.length);
rm.push(marked[m]);
marked.splice(m, 1);
}
marked = rm;
}
for(var m=0; m<marked.length; m++){
dojo.unsubscribe(marked[m]);
}
// test
failures = 0;
dojo.publish(topic);
// return number of unsubscribed functions that fired (should be 0)
return failures;
}
tests.register("tests._base.connect",
[
function smokeTest(t){
// foo sets ok to false
var ok = false;
var foo = { "foo": function(){ ok=false; } };
// connected function sets ok to true
dojo.connect(foo, "foo", null, function(){ ok=true; });
foo.foo();
t.is(true, ok);
},
function basicTest(t) {
var out = '';
var obj = {
foo: function() {
out += 'foo';
},
bar: function() {
out += 'bar';
},
baz: function() {
out += 'baz';
}
};
//
var foobar = dojo.connect(obj, "foo", obj, "bar");
dojo.connect(obj, "bar", obj, "baz");
//
out = '';
obj.foo();
t.is('foobarbaz', out);
//
out = '';
obj.bar();
t.is('barbaz', out);
//
out = '';
obj.baz();
t.is('baz', out);
//
dojo.connect(obj, "foo", obj, "baz");
dojo.disconnect(foobar);
//
out = '';
obj.foo();
t.is('foobaz', out);
//
out = '';
obj.bar();
t.is('barbaz', out);
//
out = '';
obj.baz();
t.is('baz', out);
},
function hubConnectDisconnect1000(t){
t.is(0, markAndSweepTest(1000));
},
function args4Test(t){
// standard 4 args test
var ok, obj = { foo: function(){ok=false;}, bar: function(){ok=true} };
dojo.connect(obj, "foo", obj, "bar");
obj.foo();
t.is(true, ok);
},
function args3Test(t){
// make some globals
var ok;
dojo.global["gFoo"] = function(){ok=false;};
dojo.global["gOk"] = function(){ok=true;};
// 3 arg shorthand for globals (a)
var link = dojo.connect("gFoo", null, "gOk");
gFoo();
dojo.disconnect(link);
t.is(true, ok);
// 3 arg shorthand for globals (b)
link = dojo.connect(null, "gFoo", "gOk");
gFoo();
dojo.disconnect(link);
t.is(true, ok);
// verify disconnections
gFoo();
t.is(false, ok);
},
function args2Test(t){
// make some globals
var ok;
dojo.global["gFoo"] = function(){ok=false;};
dojo.global["gOk"] = function(){ok=true;};
// 2 arg shorthand for globals
var link = dojo.connect("gFoo", "gOk");
gFoo();
dojo.disconnect(link);
t.is(true, ok);
// 2 arg shorthand for globals, alternate scoping
link = dojo.connect("gFoo", gOk);
gFoo();
dojo.disconnect(link);
t.is(true, ok);
},
function scopeTest1(t){
var foo = { ok: true, foo: function(){this.ok=false;} };
var bar = { ok: false, bar: function(){this.ok=true} };
// link foo.foo to bar.bar with natural scope
var link = dojo.connect(foo, "foo", bar, "bar");
foo.foo();
t.is(false, foo.ok);
t.is(true, bar.ok);
},
function scopeTest2(t){
var foo = { ok: true, foo: function(){this.ok=false;} };
var bar = { ok: false, bar: function(){this.ok=true} };
// link foo.foo to bar.bar such that scope is always 'foo'
var link = dojo.connect(foo, "foo", bar.bar);
foo.foo();
t.is(true, foo.ok);
t.is(false, bar.ok);
},
function connectPublisher(t){
var foo = { inc: 0, foo: function(){ this.inc++; } };
var bar = { inc: 0, bar: function(){ this.inc++; } };
var c1h = dojo.connectPublisher("/blah", foo, "foo");
var c2h = dojo.connectPublisher("/blah", foo, "foo");
dojo.subscribe("/blah", bar, "bar");
foo.foo();
t.is(1, foo.inc);
t.is(2, bar.inc);
dojo.disconnect(c1h);
foo.foo();
t.is(2, foo.inc);
t.is(3, bar.inc);
dojo.disconnect(c2h);
foo.foo();
t.is(3, foo.inc);
t.is(3, bar.inc);
},
function publishSubscribe1000(t){
t.is(markAndSweepSubscribersTest(1000), 0);
}
]
);
}

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