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var async = require('./support/async');
var expect = require('chai').expect;
describe('iterator', function() {
it('iterator', function(done) {
var call_order = [];
var iterator = async.iterator([
function(){call_order.push(1);},
function(arg1){
expect(arg1).to.equal('arg1');
call_order.push(2);
},
function(arg1, arg2){
expect(arg1).to.equal('arg1');
expect(arg2).to.equal('arg2');
call_order.push(3);
}
]);
iterator();
expect(call_order).to.eql([1]);
var iterator2 = iterator();
expect(call_order).to.eql([1,1]);
var iterator3 = iterator2('arg1');
expect(call_order).to.eql([1,1,2]);
var iterator4 = iterator3('arg1', 'arg2');
expect(call_order).to.eql([1,1,2,3]);
expect(iterator4).to.equal(null);
done();
});
it('iterator empty array', function(done) {
var iterator = async.iterator([]);
expect(iterator()).to.equal(null);
expect(iterator.next()).to.equal(null);
done();
});
it('iterator.next', function(done) {
var call_order = [];
var iterator = async.iterator([
function(){call_order.push(1);},
function(arg1){
expect(arg1).to.equal('arg1');
call_order.push(2);
},
function(arg1, arg2){
expect(arg1).to.equal('arg1');
expect(arg2).to.equal('arg2');
call_order.push(3);
}
]);
var fn = iterator.next();
var iterator2 = fn('arg1');
expect(call_order).to.eql([2]);
iterator2('arg1','arg2');
expect(call_order).to.eql([2,3]);
expect(iterator2.next()).to.equal(null);
done();
});
});
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