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var async = require('../lib');
var {expect} = require('chai');
var assert = require('assert');
describe('tryEach', () => {
it('no callback', () => {
async.tryEach([]);
});
it('empty', (done) => {
async.tryEach([], (err, results) => {
expect(err).to.equal(null);
expect(results).to.eql(undefined);
done();
});
});
it('one task, multiple results', (done) => {
var RESULTS = ['something', 'something2'];
async.tryEach([
function (callback) {
callback(null, RESULTS[0], RESULTS[1]);
}
], (err, results) => {
expect(err).to.equal(null);
expect(results).to.eql(RESULTS);
done();
});
});
it('one task', (done) => {
var RESULT = 'something';
async.tryEach([
function (callback) {
callback(null, RESULT);
}
], (err, results) => {
expect(err).to.equal(null);
expect(results).to.eql(RESULT);
done();
});
});
it('two tasks, one failing', (done) => {
var RESULT = 'something';
async.tryEach([
function (callback) {
callback(new Error('Failure'), {});
},
function (callback) {
callback(null, RESULT);
}
], (err, results) => {
expect(err).to.equal(null);
expect(results).to.eql(RESULT);
done();
});
});
it('two tasks, both failing', (done) => {
var ERROR_RESULT = new Error('Failure2');
async.tryEach([
function (callback) {
callback(new Error('Should not stop here'));
},
function (callback) {
callback(ERROR_RESULT);
}
], (err, results) => {
expect(err).to.equal(ERROR_RESULT);
expect(results).to.eql(undefined);
done();
});
});
it('two tasks, non failing', (done) => {
var RESULT = 'something';
async.tryEach([
function (callback) {
callback(null, RESULT);
},
function () {
assert.fail('Should not been called');
},
], (err, results) => {
expect(err).to.equal(null);
expect(results).to.eql(RESULT);
done();
});
});
it('canceled', (done) => {
var call_order = [];
async.tryEach([
function(callback) {
call_order.push('task1');
callback(false);
},
function() {
assert.fail('task2 should not been called');
}
], () => {
assert.fail('should not been called');
});
setTimeout(() => {
expect(call_order).to.eql(['task1']);
done();
}, 25);
});
});
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