chainy/node_modules/lazy/test/tail.js

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2020-01-26 19:03:32 +00:00
var assert = require('assert');
var Lazy = require('..');
var expresso = expresso;
function range(i, j) {
var r = [];
for (;i<j;i++) r.push(i);
return r;
}
exports['tail'] = function () {
var lazy = new Lazy;
var data = [];
var executed = false;
lazy.tail().join(function (xs) {
assert.deepEqual(xs, range(1,10));
executed = true;
});
range(0,10).forEach(function (x) {
lazy.emit('data', x);
});
lazy.emit('end');
assert.ok(executed, 'join didn\'t execute');
}