RUBYCRITIC
RUBYCRITIC
require 'rails_helper'
RSpec.describe PetitionsCSVPresenter do
class DummyPresenterClass - DummyPresenterClass has no descriptive comment
def self.fields
[:id, :name]
end
def initialize(petition)
@petition = petition
end
def to_csv
self.class.fields.map {|f| @petition[f] }.join(",") + "\n" - DummyPresenterClass#to_csv has the variable name 'f'
end
end
# Use an array that quacks like the expected Browseable::Search instance
class BatchifiedArray < Array - BatchifiedArray inherits from core class 'Array'
alias :in_batches :each
end
subject { described_class.new(BatchifiedArray.new([{id: 321, name: "Slim Jim"}]), presenter_class: DummyPresenterClass) }
describe "#initialize" do
it "initializes the presenter with default" do
presenter = described_class.new([1,2,3])
expect(presenter.petitions).to eq([1,2,3])
expect(presenter.presenter_class).to eq(PetitionCSVPresenter)
end
it "initializes the presenter with custom options" do
presenter = described_class.new([1,2,3], presenter_class: DummyPresenterClass)
expect(presenter.petitions).to eq([1,2,3])
expect(presenter.presenter_class).to eq(DummyPresenterClass)
end
end
describe "#render" do
it "returns an enumerator" do
expect(subject.render).to be_a Enumerator
end
it "renders a header row as the first enumerator call" do
expect(subject.render.next).to eq("id,name\n")
end
it "renders the fields for each petition after the header" do
enumerator = subject.render
enumerator.next
expect(enumerator.next).to eq("321,Slim Jim\n")
end
end
end