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var async = require('../lib');
var {expect} = require('chai');
var assert = require('assert');
describe('applyEach', () => {
it('applyEach', (done) => {
var call_order = [];
var one = function (val, cb) {
expect(val).to.equal(5);
setTimeout(() => {
call_order.push('one');
cb(null, 1);
}, 12);
};
var two = function (val, cb) {
expect(val).to.equal(5);
setTimeout(() => {
call_order.push('two');
cb(null, 2);
}, 2);
};
var three = function (val, cb) {
expect(val).to.equal(5);
setTimeout(() => {
call_order.push('three');
cb(null, 3);
}, 18);
};
async.applyEach([one, two, three], 5, (err, results) => {
assert(err === null, err + " passed instead of 'null'");
expect(call_order).to.eql(['two', 'one', 'three']);
expect(results).to.eql([1, 2, 3]);
done();
});
});
it('applyEachSeries', (done) => {
var call_order = [];
function one(val, cb) {
expect(val).to.equal(5);
setTimeout(() => {
call_order.push('one');
cb(null, 1);
}, 10);
}
function two(val, cb) {
expect(val).to.equal(5);
setTimeout(() => {
call_order.push('two');
cb(null, 2);
}, 5);
}
function three(val, cb) {
expect(val).to.equal(5);
setTimeout(() => {
call_order.push('three');
cb(null, 3);
}, 15);
}
async.applyEachSeries([one, two, three], 5, (err, results) => {
assert(err === null, err + " passed instead of 'null'");
expect(call_order).to.eql(['one', 'two', 'three']);
expect(results).to.eql([1, 2, 3]);
done();
});
});
it('applyEach partial application', (done) => {
var call_order = [];
var one = function (val, cb) {
expect(val).to.equal(5);
setTimeout(() => {
call_order.push('one');
cb(null, 1);
}, 10);
};
var two = function (val, cb) {
expect(val).to.equal(5);
setTimeout(() => {
call_order.push('two');
cb(null, 2);
}, 5);
};
var three = function (val, cb) {
expect(val).to.equal(5);
setTimeout(() => {
call_order.push('three');
cb(null, 3);
}, 15);
};
async.applyEach([one, two, three])(5, (err, results) => {
if (err) throw err;
expect(call_order).to.eql(['two', 'one', 'three']);
expect(results).to.eql([1, 2, 3]);
done();
});
});
});
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