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# frozen_string_literal: true
require 'test_helper'
require 'representable/coercion'
class CoercionTest < Minitest::Spec
representer! do
include Representable::Coercion
property :title # no coercion.
property :length, type: Representable::Coercion::Types::Params::Float
property :band, class: OpenStruct do
property :founded, type: Representable::Coercion::Types::Params::Integer
end
collection :songs, class: OpenStruct do
property :ok, type: Representable::Coercion::Types::Params::Bool
end
end
let(:album) do
OpenStruct.new(title: 'Dire Straits', length: 41.34,
band: OpenStruct.new(founded: '1977'),
songs: [OpenStruct.new(ok: 1), OpenStruct.new(ok: 0)])
end
it do
_(album.extend(representer).to_hash).must_equal({ 'title' => 'Dire Straits',
'length' => 41.34,
'band' => { 'founded' => 1977 },
'songs' => [{ 'ok' => true }, { 'ok' => false }] })
end
it {
album = OpenStruct.new
album.extend(representer)
album.from_hash({ 'title' => 'Dire Straits',
'length' => '41.34',
'band' => { 'founded' => '1977' },
'songs' => [{ 'ok' => 1 }, { 'ok' => 0 }] })
# it
_(album.length).must_equal 41.34
_(album.band.founded).must_equal 1977
_(album.songs[0].ok).must_equal true
}
describe 'with user :parse_filter and :render_filter' do
representer! do
include Representable::Coercion
property :length, type: Representable::Coercion::Types::Params::Float,
parse_filter: ->(input, _options) { "#{input}.1" }, # happens BEFORE coercer.
render_filter: ->(fragment, *) { "#{fragment}.1" }
end
# user's :parse_filter(s) are run before coercion.
it { _(OpenStruct.new.extend(representer).from_hash('length' => '1').length).must_equal 1.1 }
# user's :render_filter(s) are run before coercion.
it { _(OpenStruct.new(length: 1).extend(representer).to_hash).must_equal({ 'length' => 1.1 }) }
end
end
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