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var async = require('../lib');
var expect = require('chai').expect;
describe('autoInject', function () {
it("basics", function (done) {
var callOrder = [];
async.autoInject({
task1: function(task2, callback){
expect(task2).to.equal(2);
setTimeout(function(){
callOrder.push('task1');
callback(null, 1);
}, 25);
},
task2: function(callback){
setTimeout(function(){
callOrder.push('task2');
callback(null, 2);
}, 50);
},
task3: function(task2, callback){
expect(task2).to.equal(2);
callOrder.push('task3');
callback(null, 3);
},
task4: function(task1, task2, callback){
expect(task1).to.equal(1);
expect(task2).to.equal(2);
callOrder.push('task4');
callback(null, 4);
},
task5: function(task2, callback){
expect(task2).to.equal(2);
setTimeout(function(){
callOrder.push('task5');
callback(null, 5);
}, 0);
},
task6: function(task2, callback){
expect(task2).to.equal(2);
callOrder.push('task6');
callback(null, 6);
}
},
function(err, results){
expect(results.task6).to.equal(6);
expect(callOrder).to.eql(['task2','task3','task6','task5','task1','task4']);
done();
});
});
it('should work with array tasks', function (done) {
var callOrder = [];
async.autoInject({
task1: function (cb) {
callOrder.push('task1');
cb(null, 1);
},
task2: ['task3', function ( task3 , cb ) {
expect(task3).to.equal(3);
callOrder.push('task2');
cb(null, 2);
}],
task3: function (cb) {
callOrder.push('task3');
cb(null, 3);
}
}, function () {
expect(callOrder).to.eql(['task1','task3','task2']);
done();
});
});
it('should handle array tasks with just a function', function (done) {
async.autoInject({
a: [function (cb) {
cb(null, 1);
}],
b: ["a", function (a, cb) {
expect(a).to.equal(1);
cb();
}]
}, done);
});
it('should throw error for function without explicit parameters', function (done) {
try {
async.autoInject({
a: function (){}
});
} catch (e) {
// It's ok. It detected a void function
return done();
}
// If didn't catch error, then it's a failed test
done(true)
});
var arrowSupport = true;
try {
new Function('x => x');
} catch (e) {
arrowSupport = false;
}
if (arrowSupport) {
// Needs to be run on ES6 only
/* eslint {no-eval: 0}*/
eval("(function() { " +
" it('should work with es6 arrow syntax', function (done) { " +
" async.autoInject({ " +
" task1: (cb) => cb(null, 1), " +
" task2: ( task3 , cb ) => cb(null, 2), " +
" task3: cb => cb(null, 3) " +
" }, (err, results) => { " +
" expect(results.task1).to.equal(1); " +
" expect(results.task3).to.equal(3); " +
" done(); " +
" }); " +
" }); " +
"}) "
)();
}
var defaultSupport = true;
try {
eval('function x(y = 1){ return y }');
}catch (e){
defaultSupport = false;
}
if(arrowSupport && defaultSupport){
// Needs to be run on ES6 only
/* eslint {no-eval: 0}*/
eval("(function() { " +
" it('should work with es6 obj method syntax', function (done) { " +
" async.autoInject({ " +
" task1 (cb){ cb(null, 1) }, " +
" task2 ( task3 , cb ) { cb(null, 2) }, " +
" task3 (cb) { cb(null, 3) }, " +
" task4 ( task2 , cb ) { cb(null) }, " +
" task5 ( task4 = 4 , cb ) { cb(null, task4 + 1) } " +
" }, (err, results) => { " +
" expect(results.task1).to.equal(1); " +
" expect(results.task3).to.equal(3); " +
" expect(results.task4).to.equal(undefined); " +
" expect(results.task5).to.equal(5); " +
" done(); " +
" }); " +
" }); " +
"}) "
)();
}
});
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