39 lines
884 B
JavaScript
39 lines
884 B
JavaScript
var assert = require('assert');
|
|
var Lazy = require('..');
|
|
var EventEmitter = require('events').EventEmitter;
|
|
|
|
function range(i, j) {
|
|
var r = [];
|
|
for (;i<j;i++) r.push(i);
|
|
return r;
|
|
}
|
|
|
|
exports.pipe = function () {
|
|
var em = new EventEmitter;
|
|
var i = 0;
|
|
var iv = setInterval(function () {
|
|
em.emit('data', i++);
|
|
}, 10);
|
|
|
|
var caught = { pipe : 0, end : 0 };
|
|
em.on('pipe', function () {
|
|
caught.pipe ++;
|
|
setTimeout(em.emit.bind(em, 'end'), 50);
|
|
});
|
|
em.on('end', function () { caught.end ++ });
|
|
|
|
var joined = 0;
|
|
Lazy(em).take(10).join(function (xs) {
|
|
assert.deepEqual(xs, range(0, 10));
|
|
clearInterval(iv);
|
|
joined ++;
|
|
});
|
|
|
|
setTimeout(function () {
|
|
assert.equal(joined, 1);
|
|
assert.equal(caught.pipe, 1);
|
|
assert.equal(caught.end, 1);
|
|
}, 1000);
|
|
}
|
|
|