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inherited_helpers_spec.rb
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# frozen_string_literal: true
describe Grape::API::Helpers do
let(:user) { 'Miguel Caneo' }
let(:id) { '42' }
let(:api_super_class) do
Class.new(Grape::API) do
helpers do
params(:superclass_params) { requires :id, type: String }
def current_user
params[:user]
end
end
end
end
let(:api_overridden_sub_class) do
Class.new(api_super_class) do
params { use :superclass_params }
helpers do
def current_user
"#{params[:user]} with id"
end
end
get 'resource' do
"#{current_user}: #{params['id']}"
end
end
end
let(:api_sub_class) do
Class.new(api_super_class) do
params { use :superclass_params }
get 'resource' do
"#{current_user}: #{params['id']}"
end
end
end
let(:api_example) do
Class.new(api_sub_class) do
params { use :superclass_params }
get 'resource' do
"#{current_user}: #{params['id']}"
end
end
end
context 'non overriding subclass' do
subject { api_sub_class }
def app
subject
end
context 'given expected params' do
it 'inherits helpers from a superclass' do
get '/resource', id: id, user: user
expect(last_response.body).to eq("#{user}: #{id}")
end
end
context 'with lack of expected params' do
it 'returns missing error' do
get '/resource'
expect(last_response.body).to eq('id is missing')
end
end
end
context 'overriding subclass' do
def app
api_overridden_sub_class
end
context 'given expected params' do
it 'overrides helpers from a superclass' do
get '/resource', id: id, user: user
expect(last_response.body).to eq("#{user} with id: #{id}")
end
end
context 'with lack of expected params' do
it 'returns missing error' do
get '/resource'
expect(last_response.body).to eq('id is missing')
end
end
end
context 'example subclass' do
def app
api_example
end
context 'given expected params' do
it 'inherits helpers from a superclass' do
get '/resource', id: id, user: user
expect(last_response.body).to eq("#{user}: #{id}")
end
end
context 'with lack of expected params' do
it 'returns missing error' do
get '/resource'
expect(last_response.body).to eq('id is missing')
end
end
end
end