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parallel.js
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parallel.js
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it('basic', function(done) {
parallel(
[
function(cb) {
setTimeout(function() {
cb(null, 'one');
}, 100);
},
function(cb) {
setTimeout(function() {
cb(null, 'two');
}, 50);
}
],
function(err, results) {
expect(results).to.eql(['one', 'two']);
done();
}
);
});
it('empty tasks', function(done) {
parallel([], function(err, results) {
expect(results).to.eql([]);
done();
});
});
it('error', function(done) {
parallel(
[
function(cb) {
setTimeout(function() {
cb(Error('Something is wrong'));
}, 50);
},
function(cb) {
cb(null, 'success');
}
],
function(err, results) {
expect(err).to.be.an('error');
expect(results[1]).to.equal('success');
done();
}
);
});
it('no callback', function() {
let invoked = false;
parallel([
function(cb) {
invoked = true;
cb();
},
function(cb) {
cb();
}
]);
expect(invoked).to.be.true;
});
it('callback always async', function(done) {
let invoked = false;
parallel(
[
function(cb) {
cb();
}
],
function() {
invoked = true;
done();
}
);
expect(invoked).to.be.false;
});