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|
# frozen_string_literal: true
# rubocop:disable RSpec/VerifiedDoubles
require 'fast_spec_helper'
require 'tmpdir'
require 'fileutils'
require_relative '../support/silence_stdout'
require_relative '../support/helpers/next_instance_of'
require_relative '../support/matchers/abort_matcher'
require_relative '../../rubocop/formatter/todo_formatter'
require_relative '../../rubocop/todo_dir'
require_relative '../../rubocop/check_graceful_task'
RSpec.describe 'rubocop rake tasks', :silence_stdout do
include NextInstanceOf
before do
stub_const('Rails', double(:rails_env))
allow(Rails).to receive(:env).and_return(double(production?: false))
stub_const('ENV', ENV.to_hash.dup)
Rake.application.rake_require 'tasks/rubocop'
end
describe 'check:graceful' do
let(:options) { %w[file.rb Cop/Name] }
subject(:run_task) { run_rake_task('rubocop:check:graceful', *options) }
before do
allow_next_instance_of(RuboCop::CheckGracefulTask, $stdout) do |task|
allow(task).to receive(:run).with(options).and_return(task_result)
end
end
context 'with successful task result' do
let(:task_result) { 0 }
# We cannot use `abort_execution` because it's ignoring exit status `0`.
# Rely on SystemExitDetected here.
specify { run_task }
it 'modifies ENV and deletes REVEAL_RUBOCOP_TODO key' do
# There's ENV backup in before block.
ENV['REVEAL_RUBOCOP_TODO'] = '0' # rubocop:disable RSpec/EnvAssignment
run_task
expect(ENV.key?('REVEAL_RUBOCOP_TODO')).to eq(false)
end
end
context 'with non-successful task result' do
let(:task_result) { 1 }
specify { expect { run_task }.to abort_execution }
end
end
describe 'todo:generate', :aggregate_failures do
let(:tmp_dir) { Dir.mktmpdir }
let(:rubocop_todo_dir) { File.join(tmp_dir, '.rubocop_todo') }
let(:todo_dir) { RuboCop::TodoDir.new(rubocop_todo_dir) }
around do |example|
Dir.chdir(tmp_dir) do
::RuboCop::Formatter::TodoFormatter.with_base_directory(rubocop_todo_dir) do
with_inflections do
example.run
end
end
end
end
before do
# This Ruby file will trigger the following 3 offenses.
File.write('a.rb', <<~RUBY)
a+b
RUBY
# Mimicking GitLab's .rubocop_todo.yml avoids relying on RuboCop's
# default.yml configuration.
File.write('.rubocop.yml', <<~YAML)
<% unless ENV['REVEAL_RUBOCOP_TODO'] == '1' %>
<% Dir.glob('.rubocop_todo/**/*.yml').each do |rubocop_todo_yaml| %>
- '<%= rubocop_todo_yaml %>'
<% end %>
- '.rubocop_todo.yml'
<% end %>
AllCops:
NewCops: enable # Avoiding RuboCop warnings
Layout/SpaceAroundOperators:
Enabled: true
Layout/TrailingEmptyLines:
Enabled: true
Lint/Syntax:
Enabled: true
Style/FrozenStringLiteralComment:
Enabled: true
YAML
# Required to verify that we are revealing all TODOs via
# ENV['REVEAL_RUBOCOP_TODO'] = '1'.
# This file can be removed from specs after we've moved all offenses from
# .rubocop_todo.yml to .rubocop_todo/**/*.yml.
File.write('.rubocop_todo.yml', <<~YAML)
# Too many offenses
Layout/SpaceAroundOperators:
Enabled: false
YAML
# Previous offense now fixed.
todo_dir.write('Lint/Syntax', '')
end
after do
FileUtils.remove_entry(tmp_dir)
end
context 'without arguments' do
let(:run_task) { run_rake_task('rubocop:todo:generate') }
it 'generates TODOs for all RuboCop rules' do
expect { run_task }.to output(<<~OUTPUT).to_stdout
Generating RuboCop TODOs with:
rubocop --parallel --format RuboCop::Formatter::TodoFormatter
This might take a while...
Written to .rubocop_todo/layout/space_around_operators.yml
Written to .rubocop_todo/layout/trailing_empty_lines.yml
Written to .rubocop_todo/style/frozen_string_literal_comment.yml
OUTPUT
expect(rubocop_todo_dir_listing).to contain_exactly(
'layout/space_around_operators.yml',
'layout/trailing_empty_lines.yml',
'style/frozen_string_literal_comment.yml'
)
end
it 'sets acronyms for inflections' do
run_task
expect(ActiveSupport::Inflector.inflections.acronyms).to include(
'rspec' => 'RSpec',
'graphql' => 'GraphQL'
)
end
end
context 'with cop names as arguments' do
let(:run_task) do
cop_names = %w[
Style/FrozenStringLiteralComment Layout/TrailingEmptyLines
Lint/Syntax
]
run_rake_task('rubocop:todo:generate', cop_names)
end
it 'generates TODOs for given RuboCop cops' do
expect { run_task }.to output(<<~OUTPUT).to_stdout
Generating RuboCop TODOs with:
rubocop --parallel --format RuboCop::Formatter::TodoFormatter --only Layout/TrailingEmptyLines,Lint/Syntax,Style/FrozenStringLiteralComment
This might take a while...
Written to .rubocop_todo/layout/trailing_empty_lines.yml
Written to .rubocop_todo/style/frozen_string_literal_comment.yml
OUTPUT
expect(rubocop_todo_dir_listing).to contain_exactly(
'layout/trailing_empty_lines.yml',
'style/frozen_string_literal_comment.yml'
)
end
end
private
def rubocop_todo_dir_listing
Dir.glob("#{rubocop_todo_dir}/**/*")
.select { |path| File.file?(path) }
.map { |path| path.delete_prefix("#{rubocop_todo_dir}/") }
end
def with_inflections
original = ActiveSupport::Inflector::Inflections.instance_variable_get(:@__instance__)[:en]
ActiveSupport::Inflector::Inflections.instance_variable_set(:@__instance__, en: original.dup)
yield
ensure
ActiveSupport::Inflector::Inflections.instance_variable_set(:@__instance__, en: original)
end
end
end
# rubocop:enable RSpec/VerifiedDoubles
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