Class: R2M::SpecConvector

Inherits:
Object
  • Object
show all
Defined in:
lib/r2m/spec_convector.rb

Overview

Process input RSpec and convert it to minitest

Constant Summary collapse

MANUAL_AROUND_PROCESS =

rubocop:enable Metrics/MethodLength

"skip 'TODO: Remove this skip when `around` will be migrated manually by replacing `run` with `call`'"

Instance Method Summary collapse

Constructor Details

#initialize(command) ⇒ SpecConvector

rubocop:todo Metrics/ClassLength



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# File 'lib/r2m/spec_convector.rb', line 8

def initialize(command)
  @command = command
end

Instance Method Details

#convert_around(file) ⇒ Object 



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# File 'lib/r2m/spec_convector.rb', line 140

def convert_around(file)
  @command.gsub_file(file, /^\s*?\baround\b.+?\bdo\b.*?$/) do |match|
    "#{MANUAL_AROUND_PROCESS}\n#{match}"
  end
end

#convert_context_to_describe(file) ⇒ Object

Finds it cases and converts to test methods declarations

context 'with context' do # => describe 'with context' do



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# File 'lib/r2m/spec_convector.rb', line 39

def convert_context_to_describe(file)
  @command.gsub_file(file, /\bcontext( '.*?' do\b)/, 'describe\1')
end

#convert_declarations(file) ⇒ Object

rubocop:todo Metrics/MethodLength



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# File 'lib/r2m/spec_convector.rb', line 80

def convert_declarations(file) # rubocop:todo Metrics/AbcSize
  @command.gsub_file(file, /RSpec\.describe (['"])(.*?)\1 do\b/) do |match|
    title = match[/RSpec\.describe (['"])(.*?)\1 do/, 2]

    # rubocop:todo Naming/VariableName
    camelCasedTitle = title.split('::').map do |title_part|
      title_part
        .split
        .reject(&:empty?)
        .map { |part| part[0].upcase + part[1..-1] }.join
    end.join('::')
    # rubocop:enable Naming/VariableName

    # rubocop:todo Naming/VariableName
    "RSpec.describe '#{camelCasedTitle}' do"
    # rubocop:enable Naming/VariableName
  end

  @command.gsub_file(
    file,
    /RSpec\.describe ['"]?(.+?Controller)['"]? do\b/,
    'class \1Test < ActionController::TestCase'
  )
  @command.gsub_file(
    file,
    /RSpec\.describe ['"]?(.+?Mailer)['"]? do\b/,
    'class \1Test < ActionMailer::TestCase'
  )

  @command.gsub_file(
    file,
    /RSpec\.describe ['"]?(.+?Helper)['"]? do\b/,
    'class \1Test < ActionView::TestCase'
  )

  if located_in_requests?(file)
    @command.gsub_file(
      file,
      /RSpec\.describe ['"]?(.+?)['"]? do\b/,
      'class \1Test < ActionDispatch::IntegrationTest'
    )
  end

  if located_in?(file, :systems)
    @command.gsub_file(
      file,
      /RSpec\.describe ['"]?(.+?)['"]? do\b/,
      'class \1Test < ApplicationSystemTestCase'
    )
  end

  @command.gsub_file(
    file,
    /RSpec\.describe ['"]?(.+?)['"]? do\b/,
    'class \1Test < ActiveSupport::TestCase'
  )
end

#convert_helpers_suites(file) ⇒ Object 



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# File 'lib/r2m/spec_convector.rb', line 75

def convert_helpers_suites(file)
  @command.gsub_file(file, /\bhelper\./, '') if located_in_helpers?(file)
end

#convert_it_to_methods(file) ⇒ Object

Finds it cases and converts to test methods declarations

it 'converts it"s to test method with # support' do
# => def test_converts_it_s_to_test_method_with_support



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# File 'lib/r2m/spec_convector.rb', line 28

def convert_it_to_methods(file)
  @command.gsub_file(file, /(?<=\bit ').*?(?=' do\b)/) do |match|
    match.gsub(/\W+/, '_').downcase
  end

  @command.gsub_file(file, /it '_?(.*)' do/, 'def test_\1')
end

#convert_mather_be_empty(file) ⇒ Object

Finds be_empty RSpec matchers and converts to minitest matchers

expect(target).to be_empty # => expect(target).must_be_empty
expect(target).to_not be_empty # => expect(target).wont_be_empty
expect(target).not_to be_empty # => expect(target).wont_be_empty



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# File 'lib/r2m/spec_convector.rb', line 57

def convert_mather_be_empty(file)
  @command.gsub_file(file, /\.to be_empty/, '.must_be_empty')
  @command.gsub_file(file, /\.(to_not|not_to) be_empty/, '.wont_be_empty')
end

#convert_require_helpers(file) ⇒ Object

Finds it cases and converts to test methods declarations

context 'with context' do # => describe 'with context' do



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# File 'lib/r2m/spec_convector.rb', line 46

def convert_require_helpers(file)
  @command.gsub_file(file, /\bsystem_helper\b/, 'application_system_test_case')
  @command.gsub_file(file, /\b(rails_helper|spec_helper)\b/, 'test_helper')
  @command.gsub_file(file, /require (['"]?)rspec\1/, "require 'minitest/autorun'")
end

#convert_simple_matcher(file) ⇒ Object

Finds equal RSpec matchers and converts to minitest matchers

expect(target).to eq expect # => expect(target).must_equal expect
expect(target).not_to eq expect # => expect(target).wont_equal expect



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# File 'lib/r2m/spec_convector.rb', line 66

def convert_simple_matcher(file)
  @command.gsub_file(file, /\.(to_not|not_to|to)\s+(eq|include|match|be_kind_of)\b/) do |match|
    match
      .gsub(/\s+/, ' ')
      .gsub(/\.\w+ /, '.to_not ' => '.wont_', '.not_to ' => '.wont_', '.to ' => '.must_')
      .gsub(/(?<=_)eq/, 'equal')
  end
end

#process(file) ⇒ Object 



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# File 'lib/r2m/spec_convector.rb', line 12

def process(file)
  #   it 'converts it"s to test method with # support' do # => def test_converts_it_s_to_test_method_with_support
  convert_require_helpers(file)
  convert_declarations(file)
  convert_declarations(file)
  convert_context_to_describe(file)
  convert_it_to_methods(file)
  convert_helpers_suites(file)
  convert_mather_be_empty(file)
  convert_simple_matcher(file)
end