events.js
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// events
casper.test.comment("events");
casper.plopped = false;
casper.on("plop", function() {
this.plopped = true;
});
casper.test.assert(Object.keys(casper._events).some(function(i) {
return i === "plop";
}), "on() has set an event handler");
casper.emit("plop");
casper.test.assert(casper.plopped, "emit() emits an event");
// filters
casper.test.comment("filters");
casper.foo = 0;
casper.setFilter("test", function(a) {
this.foo = 42;
return a + 1;
});
casper.test.assert(Object.keys(casper._filters).some(function(i) {
return i === "test";
}), "setFilter() has set a filter");
casper.test.assertEquals(casper.filter("test", 1), 2, "filter() filters a value");
casper.test.assertEquals(casper.foo, 42, "filter() applies the correct context");
delete casper.foo;
casper.test.done();