javascript - Jasmine testing runs code in illogical order when iterating over mutliple results in a div? -


i'm trying write test grab contents of div , compare them expectation.

i know can expect multiple results, i've been trying iterate on results 1 @ time , concatenate them 1 string can compare against expectation.

code snippets below don't seem work expected. console returns "result returned: " no results before returns "result inside while: 1" , "result inside while: 1 2".

this doesn't make sense me... i've explained enough i'm trying do. code isn't great @ moment because i've been chopping , changing bits test happening.

a 'tl;dr' summary of i'm hoping can :)

  • how can iterate on each item returned element.all line , concatenate values string function return test?
  • can me understand why if/else appears true when has been set 0 beforehand (i'm sure items.length 2 in case)
  • can point me place read on promises? have feeling poor understanding of promises holding me back...

test:

var resultpage = require('../page/result.page.js'); var expectedarticle1details = browser.params.articleintransitintransit[0]; var expectedarticle2details = browser.params.articlenotcompliantpossibledelay[0]; var expectedids = ' ' + expectedarticle1details.trackingid + '  ' + expectedarticle2details.trackingid  expect(resultpage.alltrackingidsarevisible()).toequal(expectedids);

resultpage:

this.alltrackingidsarevisible = function () {     var result = "";     element.all(by.css(trackingids)).then(function (items) { var = 0;       while (i <= items.length) {         if (i === items.length) {           console.log("result returned: " + result);           return result;         }         else         {           items[i].getattribute("innerhtml").then(function (value){result += value; console.log("result inside while: " + result)})         }         = + 1;       }     })     };

i'll explain why happens first, suggest solution. call while loop, async (a promise), adds queue, , goes , next line synchronously, i+=1;, loop ends before promises resolve, result didn't change yet, , returned empty.

what should use, recursive function on element.all(by.css(trackingids)), whith signature:

addtoresult(elementarray, i, result) {};

and each time do:

items[i].getattribute("innerhtml").then(function (value){     addtoresult(elementarray, + 1, result += value) })

dont forget stop recursion when i === elementarray.length, , return result


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