Rails app has the controller with actions which response html and json formats. In specs I should specify format: 'json' for all requests:
it 'returns list of entities' do get :list, format: 'json' ... end Is there a way to avoid write format: 'json' for every example? Something like this:
context 'json', format: 'json' do it 'returns list of entities' do get :list ... end end This is adapted from https://stackoverflow.com/a/39399215/544825 but for controller specs.
Tested on: RSpec 3.8, Rails 5.2.1
This module uses metaprogramming to redefine the get, post etc methods and a memoized let helper (default_format) instead of metadata.
It basically just merges format: default_format into the arguments and calls the original implementation.
# spec/support/default_format.rb module DefaultFormat extend ActiveSupport::Concern included do let(:default_format) {} prepend RequestHelpersCustomized end module RequestHelpersCustomized l = lambda do |path, **kwargs| kwargs[:format] ||= default_format if default_format super(path, kwargs) end %w(get post patch put delete).each do |method| define_method(method, l) end end end And then include this module in your rails_helper.rb or spec_helper.rb(if you only have one test setup file):
require 'support/default_format' RSpec.configure do |config| # ... config.include DefaultFormat, type: :controller # ... end Usage:
context 'json' do let(:default_format) { :json } end I don't think this can be done with example metadata as its not available from within an example (which is where the get method is called).