ruby on rails - url helpers not using host name in Capybara feature test -


in spec use asseturlhelper:

include actionview::helpers::asseturlhelper

so can test page should display absolute url 1 of files. thought asset_url should trick:

asset_url(img.img_file(:medium))

unfortunately while spec runs has no host name, e.g.

(byebug) asset_url("blurg.jpg") "/images/blurg.jpg"

... not if specify host name option:

(byebug) asset_url("blurg.jpg", host: "myhost.com") "/images/blurg.jpg"

at least second case odd in contradicts comment in source:

# if :host options set, overwrites global # +config.action_controller.asset_host+ setting. # # ... # #   asset_url "application.js"                                 # => http://example.com/assets/application.js #   asset_url "application.js", host: "http://cdn.example.com" # => http://cdn.example.com/assets/application.js

this has lead bug going unspotted until now. test thinks there no difference between relative file path view outputs (wrongly) , absolute url should there:

myhost.com/images/blurg.jpg #what expect test check /images/blurg.jpg #what test checks

the contents of view not matter. know how fix it. want know case , future reference, why helper not behave expect in test, , how fix the test.

a feature spec doesn't have necessary rails framework loaded in order calculate host. i'm little surprised providing :host option doesn't work, not hugely because there's lot of smarts inside rails concerning urls referring routing, resolving lots of things, , trying smart.

if switch on controller spec, you'll find proper context stubbed enough asset_url works advertised (without :host option).


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