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# frozen_string_literal: true
require 'spec_helper'
module Grape
module DSL
module HelpersSpec
class Dummy
include Grape::DSL::Helpers
def self.mods
namespace_stackable(:helpers)
end
def self.first_mod
mods.first
end
end
end
module BooleanParam
extend Grape::API::Helpers
params :requires_toggle_prm do
requires :toggle_prm, type: Boolean
end
end
class Base < Grape::API
helpers BooleanParam
end
class Child < Base; end
describe Helpers do
subject { Class.new(HelpersSpec::Dummy) }
let(:proc) do
lambda do |*|
def test
:test
end
end
end
describe '.helpers' do
it 'adds a module with the given block' do
expect(subject).to receive(:namespace_stackable).with(:helpers, kind_of(Grape::DSL::Helpers::BaseHelper)).and_call_original
expect(subject).to receive(:namespace_stackable).with(:helpers).and_call_original
subject.helpers(&proc)
expect(subject.first_mod.instance_methods).to include(:test)
end
it 'uses provided modules' do
mod = Module.new
expect(subject).to receive(:namespace_stackable).with(:helpers, kind_of(Grape::DSL::Helpers::BaseHelper)).and_call_original.twice
expect(subject).to receive(:namespace_stackable).with(:helpers).and_call_original
subject.helpers(mod, &proc)
expect(subject.first_mod).to eq mod
end
it 'uses many provided modules' do
mod = Module.new
mod2 = Module.new
mod3 = Module.new
expect(subject).to receive(:namespace_stackable).with(:helpers, kind_of(Grape::DSL::Helpers::BaseHelper)).and_call_original.exactly(4).times
expect(subject).to receive(:namespace_stackable).with(:helpers).and_call_original.exactly(3).times
subject.helpers(mod, mod2, mod3, &proc)
expect(subject.mods).to include(mod)
expect(subject.mods).to include(mod2)
expect(subject.mods).to include(mod3)
end
context 'with an external file' do
it 'sets Boolean as a Grape::API::Boolean' do
subject.helpers BooleanParam
expect(subject.first_mod::Boolean).to eq Grape::API::Boolean
end
end
context 'in child classes' do
it 'is available' do
klass = Child
expect do
klass.instance_eval do
params do
use :requires_toggle_prm
end
end
end.not_to raise_exception
end
end
end
end
end
end
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