Make real async requests for jasmine integration testing - javascript

I've got an angular app going with some jasmine testing. I recently added a new method to make a query to elastic search within one of my services, it looks like this.
test:
function(){
return "Working";
},
executeSearch:
function(field, value, size, page_number){
return service.executeRegExSearch(field, value, size, page_number);
},
//new method
executeRegExSearch:
function(field, value, size, page_number){
//main search body, I know it works because
//I am getting expected results in the browser
}
And then in my jasmine tests, I've got something like this.
//initialization stuff
var $httpBackend;
var searchAPI;
beforeEach(inject(function($injector){
jasmine.DEFAULT_TIMEOUT_INTERVAL = 5000;
$httpBackend = $injector.get('$httpBackend');
searchAPI = $injector.get('searchAPI');
}));
it("is loaded properly", function(){
expect(searchAPI.test() == "Working").toBe(true); //passes
});
it("can make a request", function(){
var field = "col_name";
var value = "bb.*"; //this is matching in my browser/application
var size = 10;
var page_number = 1;
var res;
searchAPI.executeSearch(field, value, size, page_number).then(function(res){
res = res;
alert(JSON.stringify(res));
done();
});
$httpBackend.flush();
});
But when I run, I get the error
Unexpected request: GET http://myserver/index-1/_search?source={"query":{"regexp":{"col_name":{"value":"bb.*"}}}}"&size=10&from=0 No more request expected in http://localhost:8081/js/angularjs/angular-mocks.js (line 1180)
I'm not sure about how to use the mocks, or am even aware that I was doing it. All I want to do is be able to run a suite of tests that make actual calls to my backend to confirm that things are being integrated properly... you know.. integration tests.
Anyone have any advice?

I didn't want to do tests with Selenium stuff, so to test my app with real backend calls I used a modified version of angular-mocks
It works just like for unit-tests in Jasmine.
I'm using it with Jasmine 2.0, so a test looks like following :
it(' myTest', function (done) {
_myService.apiCall()
.then(function () {
expect(true).toBeTruthy();
done()
});
});
NB: the done is needed because of the async call.

If you want to do end to end e2e test for angular applications you definitely must use protractor (was created by the angular team), you could create your tests using jasmine and run them against your application, if you are just using unit testing I think the best way is to mock the httpBackend.
https://github.com/angular/protractor
https://docs.angularjs.org/guide/e2e-testing

Related

Protractor code failing due to module exports

In my Protractor framework, I am using a POM model, so a lot of code resides in different .js files, which are then called into , at necessary junctions, to have the e2e tests.
I have a CompleteProfile.js file (dummy name), where I have a condition,
if profile_flag ===100,
then do nothing
else
complete profile (includes a lot of forms)
For the else portion, I have the code in a differentfillCustomerForms.js file, whose code is something like this
var completeprofile = function(){
this.locator = element(by.css('some_css_locator'));
this.locator.click();
browser.sleep(2000);
}
module.exports={
profileComplete1 = completeprofile
}
I'm using this from fillCustomerForms.js in my CompleteProfile.js as
var Profile = require('./fillCustomerForms.js');
var c_profile = new Profile.profileComplete1();
var compl_profile = function(){
this.someFunction= function(){
profile_flag = "90"
if profile_flag ==="100"{
then do nothing;
}else{
c_profile.completeprofile();
}
}
}
module.exports={
finalExp = compl_profile
}
Inside my spec.js, I am calling the CompleteProfile.js as
var Profile = require('./CompleteProfile.js');
var co_profile = new Profile.finalExp();
describe("Modules",()=>{
it('Modules that load other things',()=>{
//do other things neccessary
});
});
describe("Module",()=>{
it("should do something,"()=>{
co_profile.someFunction();
});
});
The first describe block is the one that loads the browser and checks for the URL and other test cases. My issue is when if I add the second describe block, then the URL that is sent in first describe block is rendered empty i.e. Chrome loads without any URL, and errors out due to timeout error. I have checked the code and it seems fine. What did I do wrong here.
I'm guessing this might have to do with some basics of JS, that I might have overlooked, but right now I'm not able to figure this one out.
You have a syntax error in your second testcase (the it function). Every callback of each testcase in Mocha requires to be resolved or rejected. e.g:
it('should ...', done => {
/* assertion */
done(/* passing a new instance of Error will reject the testcase*/);
});`.
The called function doesn't not return anything in the provided code snippet, I don't really see what you're trying to test for.

getText is not a function error - Protractor (javascript)

I have node.js installed and protractor installed. I have experience with selenium-webdriver but Protractor is driving me nuts!!! I am also not that familiar with javascript.
This is what my code looks like:
describe('My app', function() {
var result = element(by.id('result-name'));
var enterBtn = element(by.id('enter'));
var clearFieldBtn = element(by.id('clear-field');
it('should bring up components on load', function() {
browser.get(`http://localhost:${process.env.PORT}`);
browser.wait(until.titleContains('Sample App'), 500);
browser.wait(until.presenceOf(browser.element(by.id('my-test-app'))), 500);
expect(enterBtn).isPresent;
});
it('result should equal username', function () {
browser.get(`http://localhost:${process.env.PORT}`);
expect(clearFieldBtn).isPresent;
expect(result.getText()).toEqual('John Smith'); //both tests pass without this line of code
});
});
The last line "expect(result.getText()).toEqual('John Smith');" throws me an error. I get:
expect(...).toEqual is not a function
Any help would be much appreciated. I have spent a couple of hours trying to find a solution and trying different things.
I also wanted to implement the isPresent function how it's done in the api docs which is like this: expect($('.item').isPresent()).toBeTruthy();
I tried to do:
expect(clearFieldBtn).isPresent().toBeTruthy();
But I get that isPresent is not a function...
The expect above that line seems poor. It should read
expect(clearFieldBtn.isPresent()).toBeTruthy();
not sure if that is causing the weird error on the line below...just thought I would throw it out there. All your protractor APIs need be be called within the expect because isPresent is not a attribute of expect
Have you tried these lines:
clearFieldBtn.isPresent().then(function(bln) {
expect(bln).toBe(true);
});
result.getText().then(function(tmpText) {
expect(tmpText).toBe('John Smith');
});
If you still get an error on result.getText(), please check the presence of the result object.

How to use chakramjs for a typescript project?

I am writing a node application in typescript, and am pretty inexperienced with both nodejs and typescript.
I want to use chakram to test the API endpoints, yet chakram lacks typescript definiton.
The more general question is how to import a library without definitions, yet the way I am supposed to to apply the answers still eludes me. The provided answer are too abstract for my current understanding, so I would like a more concrete example.
Basically, I don't know how to transform the working javascript healthcheck.js:
var chakram = require('chakram'),
expect = chakram.expect;
describe("Rest API Healthceck", function () {
it('should respond with HTTP STATUS OK NO CONTENT', function () {
var response = chakram.get("http://app.local/api/status", {});
expect(response).to.have.status(204);
return chakram.wait();
});
});
into its typescript variant.
I tried to work with any, as I don't want to provide my own typings yet, I just want it to work.
I tried im my healthcheck.ts file with:
let it: any;
let describe: any;
let chakram: any;
chakram = require('chakram');
const expect = chakram.expect;
describe("Rest API Healthceck", function () {
it('should respond with HTTP STATUS OK NO CONTENT', function () {
var response = chakram.get("http://app.local/api/status", {});
expect(response).to.have.status(204);
return chakram.wait();
});
});
It does compile yet it throws an error if I try to execute the test with mocha by ./node_modules/mocha/bin/mocha dist/tests/acceptance/healthcheck.js, namely:
TypeError: describe is not a function
Investigating the error further I am also not sure if the issue has to do with mocha and how its types are loaded. I am also using typings and not definilty typed, that may also be another problem.
Where am I going wrong?
To make the test run I had to make typings aware of mocha:
./node_modules/typings/dist/bin.js install env~mocha --global
The problem was due to missing defintion of mocha and unrelated to chakramjs.
In order for it to run then, my typescript testcase looks like:
let chakram: any;
chakram = require('chakram');
const expect = chakram.expect;
describe("Rest API Healthceck", function () {
it('should respond with HTTP STATUS OK NO CONTENT', function () {
var response = chakram.get("http://app.local/api/status", {});
expect(response).to.have.status(204);
return chakram.wait();
});
});

Organizing code of a midly sized javascript client side app for testing

I'm building a midly size app using backbone and its friends jquery and underscore. My plan is to use QunitJS to create unittests.
I already have a Proof-Of-Concept of the app, so I basicly have a good grasp of how the code should look like without having to test it. It looks like that:
(function() {
// prepare some model
var Query = BackboneModel.extend({});
query = new Query();
// register some events
$('body.something').click(function() {
query.set('key', 'value');
# ...
});
// create some backbone view
var QueryView = Backbone.View.extend({...})
// init backbone view
query.view = new QueryView();
// add some plumbing here ...
// and so on...
})();
Otherwise said:
I wrap the module inside a function to avoid pollution
Class declaration and class use is interleaved
event registration is interleaved with the rest of the code
variables global to the module are reused inside the module
Now I need to test that. The problem is, I think, mainly about event registration and plumbing.
My plan is to wrap the code in functions and export every function and objects I want to test. The code will look like this:
var app = (function() {
var app = {}
// prepare some model
var Query = BackboneModel.extend({});
app.query = new Query();
// register some events
app.registerEvent = function() {
$('body.something').click(function() {
query.set('key', 'value');
# ...
});
};
app.registerEvent(); // XXX: call immediatly
// create some backbone view
app.QueryView = Backbone.View.extend({...})
// init backbone view
app.query.view = new QueryView();
// add some plumbing here ...
// wrapped in function with correct arguments and call it immediatly
// and so on...
// ...
return app;
})();
This is the first time I need to write tests in javascript for this kind of application so I'm wondering whether my approach to make the code testable is correct or can be improved. For instance, It seems silly to me to wrap the registration of events in function without arguments and call them immediatly.
Is there a javascript way to do this?
So I found an excellent way to test private functions while keeping my production code clean. I am not sure if you are using any build system like Grunt or Gulp, but if you are open to it you could do something like this:
//has a dependency of 'test' causing it to run testing suite first
gulp.task('js', ['test'], function() {
return gulp.src(source)
.pipe(plumber())
//create sourcemaps so console errors point to original file
.pipe(sourcemaps.init())
//strip out any code between comments
.pipe(stripCode({
start_comment: 'start-test',
end_comment: 'end-test'
}))
//combine all separatefiles into one
.pipe(concatenate('mimic.min.js'))
//minify and mangle
.pipe(uglify())
.pipe(sourcemaps.write('maps'))
.pipe(gulp.dest('dist/js'));
});
And the file could look like:
var app = (function () {
function somePrivateFunction () {}
function someotherPrivateFunction () {}
var app = {
publicFunction: function(){}
publicVar: publicVar
}
/* start-test */
app.test = {
testableFunction: somePrivateFunction
}
/* end-test */
}());
Everything between the test comments gets stripped out after the tests are run so the production code is clean. Grunt has a version of this and I assume any automated build system can do the same. You can even set a watch task so that it runs the tests on every save. Otherwise you'll have to manually remove the exported test object before deployment.
In the case of Backbone just attach a test object to the module and reference that object in the tests. Or if you really want to separate it, set the object in the global scope. window.testObject = { //list of objects and methods to test... }; and strip that code out before deployment.
Basically what I do is avoid any calls in the library I want to test. So everything is wrapped in a function and exported.
Then I have two other files one is main.js where I do the plumbing and should be tested using integration tests with selenium and tests.js which does unit testing.

Front end javascript testing using Require and Resharper

So I've been trying to figure out how front end testing works (unit testing) but I am getting stuck on some point.
So I have my jasmine test set up as follows:
describe('Blabla', function () {
it('returns true', function () {
var people = require(["people"], function(ppl) {
return ppl;
});
expect(people.getTitle()).toBe('People piolmjage');
});
});
But running this gets me:
TypeError: undefined is not a funtion
So obviously, people is undefined. So perhaps my callback comes in too late. But if I remove the callback I get following error:
it('returns true', function () {
var people = require("people");
expect(people.getTitle()).toBe('People piolmjage');
});
Error: Module name "people" has not been loaded yet for context: _. Use require([])
I figure there is something wrong in my setup...Anyone have any idea how to get this FE testing to work?
I did manage to get it to work from console and using define combined with phantomjs and the durandal test files but I need this to work outside of the console and hereby I cannot use this define because the test runner won't find my tests.
That's why I need to use the CommonJS was of getting the required viewmodels.
people model
define([],
function () {
var getTitle = function() {
return "hello";
}
var peopleViewModel = {
title: 'People page',
getTitle: getTitle
};
return peopleViewModel;
});
UPDATE
I got the code working but not with resharper. Following this page from the durandal webpage.
But this gets me console output which is way to unstructured to actually read through.
I can however use the define keyword and then it works fine. So I assume it is the require keyword where I mess up something?
UPDATE 2
So I used fiddler to check what is going on. I also finally got it working (kinda...).
My testfile looks like this now:
///<reference path="../../Scripts/require.js"/>
///<reference path="../../test/lib/jasmine-2.1.3/jasmine.js"/>
///<reference path="../../App/viewmodels/people.js"/>
describe('Blabla', function () {
it('require test', function (done) {
require(['people'], function (people) {
expect(people.title).toBe('People page');
done();
});
});
});
And then I changed my people file:
define("people", ["bla"], function (bla) {
return {
title: 'People page',
bla: bla
};
});
As you can see here, I name my viewmodel to be people.
This works for the testrunner but he doesn't actually get any files through requireJS but only the reference paths. Also this does not fit my needs because the durandal models are unnamed.
Fiddler screenshot:
So basically he does not use requireJS to get the viewmodels and therefor I cannot just use the require.config initializer to get to my viewmodels folder and download every viewmodel using requireJS. Any thoughts?
I finally got it working, took me like a day and a half.
Anyway I don't use resharper anymore, or it's test runner to be more precise.
Chutzpah is the one I turned to in the end. This too took me some research but I got it to the point where it includes everything as I want it to.
Check this post for sure
Here is what I did:
My people.js looks like this:
define(['viewmodels/bla'], function (bla) {
return {
title: 'People page',
bla: bla //testing dependencies on other viewmodels
};
});
Then I also made a bla.js
define(function() {
return {
bla: "bla"
};
});
And now for the tests:
describe('Blabla', function () {
it('require test', function (done) {
require(['viewmodels/people'], function (people) {
expect(people.title).toBe('People page');
done();
});
});
it('dependency on require test', function (done) {
require(['viewmodels/people'], function (people) {
console.log(people.bla);
expect(people.bla.bla).toBe('bla');
done();
});
});
});
And then eventually, reading the answers on the link provided on top I had to create a Chutzpah config file to create a test harnass:
{
"Framework": "jasmine",
"TestHarnessReferenceMode": "AMD",
"TestHarnessLocationMode": "SettingsFileAdjacent",
"References" : [
{"Path" : "../Scripts/require.js" },
{"Path" : "requireConfig.js" }
],
"Tests" : [
{"Path": "specs"}
]
}
Now, running the tests with Visual studio test runner actually gets me everything I need and as you can see, I can now access all my viewmodels through require like so: require(['viewmodels/whateverviewmodel'], function(whateverviewmodel){....})
I hope this answer can get people on their way to testing your (Durandal)SPA using Jasmine and RequireJS.
I know my viewmodels in this answer, nor in the question itself, say much but this should get you an idea of how to go about all of this.
Small Edit
You can now also skip the callback mess with require([]... inside of the tests and build your tests like you do your viewmodels with define
define(['viewmodels/people'], function (people) {
describe('Blabla', function () {
it('require test', function () {
expect(people.title).toBe('People page');
});
it('dependency on require test', function () {
console.log(people.bla);
expect(people.bla.bla).toBe('bla');
});
});
});
This gets you less indents and is more readable in itself.
The require call provided by RequireJS is inherently asynchronous so you need to do something like this:
it('returns true', function (done) {
require(["people"], function(people) {
expect(people.getTitle()).toBe('People piolmjage');
done(); // Signal that the test is done.
});
});
The first attempt you show in your question cannot work. That's the classical "trying to return values synchronously form asynchronous code" mistake. The second attempt with require("people") does not work either because this require call is pseudo-synchronous and will work only if the module requested is already loaded. See this answer for an explanation of how this pseudo-synchronous require works.

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