ruby on rails - Rspec, can you stub a method that doesn't exist on an object (or mock an object that can take any method)? -


this might sound terribly basic question... let me explain context. i'm retrieving event stripe, purposes of this, works other things i've considered.

the data need in stripe object way buried, i'd have event.data.object.date.lines.first.id. i'm not sure how mock/stub this...

the way can think create fake model simulates stripe event object (in example me, keep in mind stripe events can't user created). , can mock fake model. way it? there way can use rspec stub whole shebang , event.data.object.date.lines.first.id wherever appears should retun 1?

oh , also... if not, , turns out have create fake model... tips appreciated, because right i'm thinking "fake" model needs many layers of children, , totally not worth time investment.

rspec provides no special mechanisms access elements under test, yes, need somehow stub id method , have return whatever wish (e.g. 1).

to that, must have way access event object in test can stub it's data method. once can access it, can use rspec's receive_message_chain matcher specify sequence of methods which, if called, return 1.

if there public strip method can mock return double event, straightforward approach.

if that's not possible, determine class of event , use allow_any_instance_of method stub it's data method. resulting mock follows, assuming foo class of event object you're concerned about:

allow_any_instance_of(foo)).to receive_message_chain(   :data, :object, :date, :lines, :first, :id).and_return(1)

here's test passes:

module stripe   class event ; end end describe 'stack overflox example'   'should pass'     event = stripe::event.new     expect(event).to receive_message_chain(:data, :object, :date, :lines, :first, :id).and_return(23)     expect(event.data.object.date.lines.first.id).to eq(23)   end end

Comments

Post a Comment

Popular posts from this blog

powershell Start-Process exit code -1073741502 when used with Credential from a windows service environment -

i'm running strange behavior powershell start-process call. here call: $process = start-process ` "c:\somepath\mybinary.exe" ` -passthru ` -credential $defaultcredential ` -wait ` -workingdirectory "c:\somepath" ` -loaduserprofile if ($process.exitcode -ne 0) { #do } this call return exit code - 1073741502 . after quick search, exit code seems related generic error when program not load required dll (aka. status_dll_init_failed ). when run without -credential $credential program runs correctly. in order isolate problem, manually launched some.exe in prompt target credential , runs smoothly. so problem seems come way start-process cmdlet launch process. i found potential solutions problem tried apply no luck : link , link . would have idea of what's going on here ? edit 1: run proc mon monitoring program activities when launched directly or via powershell script. problem seems occur when loading kernelbase
Read more

twig - Using Twigbridge in a Laravel 5.1 Package -

i'm trying create laravel 5.1 package uses twigbridge instead of .php views. can normal .php views display fine, when try make use of .twig templates i'm met error. possible use twigbridge templates when creating views laravel package or pretty stuck blade , php ? edit 1: loading twig template without extending works. it's when start using {% extends 'file' %} error comes out. i error error loading /virtual/laravel/packages/username/mypackage/src/views/sample.twig: template "templates.master" not defined () in "/virtual/laravel/packages/username/mypackage/src/views/sample.twig" @ line 1. my folders username |_ mypackage |_ src |_ controllers - samplecontroller.php |_ views |_ templates - master.twig - sample.twig twig template sample.twig {% extends 'templates.master' %} {% block content %} {{ parent()
Read more

c# - LINQ join Entities from HashSet's, Join vs Dictionary vs HashSet performance -

i have hashset's each stores t, have written test application compares different relation algorithms can think of, i'm not pleased results getting. does there exist more efficient ways of achieving object relations, once testing? using system; using system.collections.generic; using system.linq; using system.text; using system.threading.tasks; using system.diagnostics; namespace linqtests { class program { static void main(string[] args) { hashset<user> usertable = new hashset<user>(); hashset<userproperty> userpropertytable = new hashset<userproperty>(); #region lets create dummy data. console.writeline("please wait while creating dummy data, can take while..."); console.writeline(""); int rows = 1000000; for(int x = 0; x < rows; x++) { random rnd = new random(); // ad
Read more