Protractor Convert a CSV file to Json and read key value - json

Question

I am using the following functions on a library and then calling them like this. The issue with the code is that I am not able return the values from the code below:
Would be great if some one suggests a way to return the value back to my test. (I will post the full working code once this is solved). I have not worked with promises so if some one can suggest a solution that be great!
Resolved this!!! check my answer:
My Testcase
iit("Should Find the OrderID and update task and submit", function () {
var job_id_data= lib.getTestData('MYPROJ_TESTCASE_001'); //Problem area
console.log(job_id_data);
element(by.xpath('//input[#type=\'search\']')).sendKeys(job_id_data);
//Do other stuff
}
The below code in my function (lib) needs to return a promise, and I don't know how to do that :(
csvConverter.on("end_parsed",function(jsonObj){
//console.log(jsonObj); //here is your result json object
var foundTestData = getObjects(jsonObj, 'TC', jobreference);
console.log(returnKeyValue ); //I can see this value
returnKeyValue = getValues(foundTestData, 'JOBID'); // I cannot return this??
});
Full Not working code ...Code
var lib = require('./lib/library.js');
iit("should go to logout page", function () {
var id_data= lib.getTestData('Test.3');
//plan to use this value in my tests
});
//Library
function getTestData(jobreference) {
//Converter Class
var Converter=require("csvtojson").core.Converter;
var fs=require("fs");
var csvFileName="C:\\TestData.csv";
var fileStream=fs.createReadStream(csvFileName);
//new converter instance
var param={};
var csvConverter=new Converter(param);
var returnKeyValue="";
var result = {};
//This requires a code change:
csvConverter.on("end_parsed",function(jsonObj){
//console.log(jsonObj); //here is your result json object
var foundTestData = getObjects(jsonObj, 'TC', jobreference);
console.log(returnKeyValue ); //I can see this value
returnKeyValue = getValues(foundTestData, 'JOBID'); // I cannot return this??
});
//read from file
fileStream.pipe(csvConverter);
return returnKeyValue;
}
function getValues(obj, key) {
var objects = [];
for (var i in obj) {
if (!obj.hasOwnProperty(i)) continue;
if (typeof obj[i] == 'object') {
objects = objects.concat(getValues(obj[i], key));
} else if (i == key) {
objects.push(obj[i]);
}
}
return objects;
}
function getObjects(obj, key, val) {
var objects = [];
for (var i in obj) {
if (!obj.hasOwnProperty(i)) continue;
if (typeof obj[i] == 'object') {
objects = objects.concat(getObjects(obj[i], key, val));
} else
//if key matches and value matches or if key matches and value is not passed (eliminating the case where key matches but passed value does not)
if (i == key && obj[i] == val || i == key && val == '') { //
objects.push(obj);
} else if (obj[i] == val && key == ''){
//only add if the object is not already in the array
if (objects.lastIndexOf(obj) == -1){
objects.push(obj);
}
}
}
return objects;
}

Answer 1

Managed to resolve this :) with some help from my colleague (thanks :))
This post here helped me get quickly to the point
http://know.cujojs.com/tutorials/promises/creating-promises
Solution is I updated the function to the following, which basically works with Protractor Promises. Which is great.
function getTestData(jobreference) {
var Converter=require("csvtojson").core.Converter;
var fs=require("fs");
var csvFileName="TESTJOB.csv";
var fileStream=fs.createReadStream(csvFileName);
var csvConverter=new Converter(param);
//new converter instance
var param={};
var csvConverter=new Converter(param);
var d = protractor.promise.defer();
csvConverter.on("end_parsed",function(jsonObj){
var foundTestData = getObjects(jsonObj, 'TCaseID', jobreference);
returnKeyValue = getValues(foundTestData, 'ID');
console.log(returnKeyValue.toString());
d.fulfill(returnKeyValue.toString());
});
//d.reject("fail!!!!");
fileStream.pipe(csvConverter);
return d.promise;
}