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var async = require('../lib');
var {expect} = require('chai');
var assert = require('assert');
var getFunctionsObject = require('./support/get_function_object');
describe('series', () => {
it('series', (done) => {
var call_order = [];
async.series([
function(callback){
setTimeout(() => {
call_order.push(1);
callback(null, 1);
}, 25);
},
function(callback){
setTimeout(() => {
call_order.push(2);
callback(null, 2);
}, 50);
},
function(callback){
setTimeout(() => {
call_order.push(3);
callback(null, 3,3);
}, 15);
}
],
(err, results) => {
assert(err === null, err + " passed instead of 'null'");
expect(results).to.eql([1,2,[3,3]]);
expect(call_order).to.eql([1,2,3]);
done();
});
});
it('with reflect', (done) => {
var call_order = [];
async.series([
async.reflect((callback) => {
setTimeout(() => {
call_order.push(1);
callback(null, 1);
}, 25);
}),
async.reflect((callback) => {
setTimeout(() => {
call_order.push(2);
callback(null, 2);
}, 50);
}),
async.reflect((callback) => {
setTimeout(() => {
call_order.push(3);
callback(null, 3,3);
}, 15);
})
],
(err, results) => {
assert(err === null, err + " passed instead of 'null'");
expect(results).to.eql([
{ value: 1 },
{ value: 2 },
{ value: [3,3] }
]);
expect(call_order).to.eql([1,2,3]);
done();
});
});
it('empty array', (done) => {
async.series([], (err, results) => {
expect(err).to.equal(null);
expect(results).to.eql([]);
done();
});
});
it('error', (done) => {
async.series([
function(callback){
callback('error', 1);
},
function(callback){
assert(false, 'should not be called');
callback('error2', 2);
}
],
(err) => {
expect(err).to.equal('error');
});
setTimeout(done, 100);
});
it('canceled', (done) => {
async.series([
function(callback) {
callback(false, 1);
},
function(callback) {
assert(false, 'second function should not be called');
callback('error2', 2);
}
], () => {
assert(false, 'final callback should not be called');
});
setTimeout(done, 25);
});
it('error with reflect', (done) => {
async.series([
async.reflect((callback) => {
callback('error', 1);
}),
async.reflect((callback) => {
callback('error2', 2);
}),
async.reflect((callback) => {
callback(null, 1);
}),
async.reflect((callback) => {
callback('error3');
})
],
(err, results) => {
assert(err === null, err + " passed instead of 'null'");
expect(results).to.eql([
{ error: 'error', value: 1 },
{ error: 'error2', value: 2 },
{ value: 1 },
{ error: 'error3' },
]);
done();
});
});
it('no callback', (done) => {
async.series([
function(callback){callback();},
function(callback){callback(); done();},
]);
});
it('object', (done) => {
var call_order = [];
async.series(getFunctionsObject(call_order), (err, results) => {
expect(err).to.equal(null);
expect(results).to.eql({
one: 1,
two: 2,
three: [3,3]
});
expect(call_order).to.eql([1,2,3]);
done();
});
});
it('call in another context @nycinvalid @nodeonly', (done) => {
var vm = require('vm');
var sandbox = {
async,
done
};
var fn = "(" + (function () {
async.series([function (callback) {
callback();
}], (err) => {
if (err) {
return done(err);
}
done();
});
}).toString() + "())";
vm.runInNewContext(fn, sandbox);
});
// Issue 10 on github: https://github.com/caolan/async/issues#issue/10
it('falsy return values', (done) => {
function taskFalse(callback) {
async.nextTick(() => {
callback(null, false);
});
}
function taskUndefined(callback) {
async.nextTick(() => {
callback(null, undefined);
});
}
function taskEmpty(callback) {
async.nextTick(() => {
callback(null);
});
}
function taskNull(callback) {
async.nextTick(() => {
callback(null, null);
});
}
async.series(
[taskFalse, taskUndefined, taskEmpty, taskNull],
(err, results) => {
expect(results.length).to.equal(4);
assert.strictEqual(results[0], false);
assert.strictEqual(results[1], undefined);
assert.strictEqual(results[2], undefined);
assert.strictEqual(results[3], null);
done();
}
);
});
});
|
