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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.em = function () {
var em = new EventEmitter;
var i = 0;
var iv = setInterval(function () {
em.emit('data', i++);
}, 10);
var caughtDone = 0;
em.on('pipe', function () { caughtDone ++ });
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(caughtDone, 1);
}, 500);
}