mirror of
https://github.com/nodejs/node.git
synced 2024-12-01 16:10:02 +01:00
56 lines
1.5 KiB
JavaScript
56 lines
1.5 KiB
JavaScript
require("../common");
|
|
var events = require('events');
|
|
|
|
var callbacks_called = [ ];
|
|
|
|
var e = new events.EventEmitter();
|
|
|
|
function callback1() {
|
|
callbacks_called.push("callback1");
|
|
e.addListener("foo", callback2);
|
|
e.addListener("foo", callback3);
|
|
e.removeListener("foo", callback1);
|
|
}
|
|
|
|
function callback2() {
|
|
callbacks_called.push("callback2");
|
|
e.removeListener("foo", callback2);
|
|
}
|
|
|
|
function callback3() {
|
|
callbacks_called.push("callback3");
|
|
e.removeListener("foo", callback3);
|
|
}
|
|
|
|
e.addListener("foo", callback1);
|
|
assert.equal(1, e.listeners("foo").length);
|
|
|
|
e.emit("foo");
|
|
assert.equal(2, e.listeners("foo").length);
|
|
assert.deepEqual(["callback1"], callbacks_called);
|
|
|
|
e.emit("foo");
|
|
assert.equal(0, e.listeners("foo").length);
|
|
assert.deepEqual(["callback1", "callback2", "callback3"], callbacks_called);
|
|
|
|
e.emit("foo");
|
|
assert.equal(0, e.listeners("foo").length);
|
|
assert.deepEqual(["callback1", "callback2", "callback3"], callbacks_called);
|
|
|
|
e.addListener("foo", callback1);
|
|
e.addListener("foo", callback2);
|
|
assert.equal(2, e.listeners("foo").length)
|
|
e.removeAllListeners("foo")
|
|
assert.equal(0, e.listeners("foo").length)
|
|
|
|
// Verify that removing callbacks while in emit allows emits to propagate to
|
|
// all listeners
|
|
callbacks_called = [ ];
|
|
|
|
e.addListener("foo", callback2);
|
|
e.addListener("foo", callback3);
|
|
assert.equal(2, e.listeners("foo").length)
|
|
e.emit("foo");
|
|
assert.deepEqual(["callback2", "callback3"], callbacks_called);
|
|
assert.equal(0, e.listeners("foo").length)
|