Ruby: Additional rubocop config (#247)

* Add in new rubocop sub-gems - regenerate todo file

* Autofix all remaining Layout cops

* AF: Lint/UnusedBlockArgument£

* Fix 2 Lint cops that are very edge case

* Fix HeredocDelimiterNames

* Fix up Naming/BlockParameterName

* AF: RSpec/DescribedClass

* Fix Style/PerlBackrefs

* Add changelog PR id

* Fix erroneous rename of method

* Refactor CombinatiorialExpressionFactory spec as it was named as a minitest file

* Remove some line complexity from expression factory spec

* Regenerate config and get code passable again in CI

Author: luke-hill

CHANGELOG.md

@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
+### Changed
+- [Ruby] Added subsidiary rubocop gems (RSpec/Rake/Performance), and did some initial refactoring ([#247](https://github.com/cucumber/cucumber-expressions/pull/247))
 
 ## [17.0.1] - 2023-11-24
 ### Fixed

ruby/.rubocop.yml

@@ -1,3 +1,8 @@
+require:
+  - rubocop-performance
+  - rubocop-rake
+  - rubocop-rspec
+
 inherit_from: .rubocop_todo.yml
 
 inherit_mode:
@@ -15,13 +20,18 @@ Gemspec/RequireMFA:
 Layout/LineLength:
   Max: 200
 
+# This is documented in this spec to showcase why it's not working and people shouldn't use it
+# cf:
+Lint/MixedRegexpCaptureTypes:
+  Exclude:
+    - 'spec/cucumber/cucumber_expressions/tree_regexp_spec.rb'
+
 Style/Documentation:
   Enabled: false
 
 Style/RegexpLiteral:
   EnforcedStyle: slashes
   AllowInnerSlashes: true
 
-# Once we enable rubocop-rspec
-#RSpec/MessageSpies:
-#  EnforcedStyle: receive
+RSpec/MessageSpies:
+  EnforcedStyle: receive

ruby/.rubocop_todo.yml

@@ -1,97 +1,21 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2023-10-06 11:04:10 UTC using RuboCop version 1.27.0.
+# on 2023-11-27 17:52:56 UTC using RuboCop version 1.27.0.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
 # versions of RuboCop, may require this file to be generated again.
 
 # TODO: Oct '23 -> 33 files inspected, 1004 offenses detected, 859 offenses auto-correctable
 # TODO: Oct '23 (later) -> 33 files inspected, 344 offenses detected, 205 offenses auto-correctable
-
-# Offense count: 1
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle, IndentationWidth.
-# SupportedStyles: outdent, indent
-Layout/AccessModifierIndentation:
-  Exclude:
-    - 'lib/cucumber/cucumber_expressions/cucumber_expression_generator.rb'
+# TODO: Nov '23 -> 33 files inspected, 399 offenses detected, 192 offenses auto-correctable
 
 # Offense count: 2
 # This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle, IndentationWidth.
+# Configuration parameters: IndentationWidth.
 # SupportedStyles: special_inside_parentheses, consistent, align_brackets
 Layout/FirstArrayElementIndentation:
-  Exclude:
-    - 'spec/cucumber/cucumber_expressions/combinatorial_generated_expression_factory_test.rb'
-
-# Offense count: 2
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle, IndentationWidth.
-# SupportedStyles: special_inside_parentheses, consistent, align_braces
-Layout/FirstHashElementIndentation:
-  Exclude:
-    - 'cucumber-cucumber-expressions.gemspec'
-
-# Offense count: 4
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: AllowMultipleStyles, EnforcedHashRocketStyle, EnforcedColonStyle, EnforcedLastArgumentHashStyle.
-# SupportedHashRocketStyles: key, separator, table
-# SupportedColonStyles: key, separator, table
-# SupportedLastArgumentHashStyles: always_inspect, always_ignore, ignore_implicit, ignore_explicit
-Layout/HashAlignment:
-  Exclude:
-    - 'cucumber-cucumber-expressions.gemspec'
-
-# Offense count: 2
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, IgnoredPatterns.
-# URISchemes: http, https
-Layout/LineLength:
-  Max: 252
-
-# Offense count: 1
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle.
-# SupportedStyles: symmetrical, new_line, same_line
-Layout/MultilineMethodCallBraceLayout:
-  Exclude:
-    - 'spec/cucumber/cucumber_expressions/parameter_type_spec.rb'
-
-# Offense count: 3
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle, IndentationWidth.
-# SupportedStyles: aligned, indented, indented_relative_to_receiver
-Layout/MultilineMethodCallIndentation:
-  Exclude:
-    - 'lib/cucumber/cucumber_expressions/cucumber_expression_generator.rb'
-
-# Offense count: 4
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: AllowForAlignment, EnforcedStyleForExponentOperator.
-# SupportedStylesForExponentOperator: space, no_space
-Layout/SpaceAroundOperators:
-  Exclude:
-    - 'lib/cucumber/cucumber_expressions/tree_regexp.rb'
-
-# Offense count: 57
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: EnforcedStyle, EnforcedStyleForEmptyBraces, SpaceBeforeBlockParameters.
-# SupportedStyles: space, no_space
-# SupportedStylesForEmptyBraces: space, no_space
-Layout/SpaceInsideBlockBraces:
-  Exclude:
-    - 'cucumber-cucumber-expressions.gemspec'
-    - 'lib/cucumber/cucumber_expressions/group_builder.rb'
-    - 'lib/cucumber/cucumber_expressions/parameter_type_registry.rb'
-    - 'lib/cucumber/cucumber_expressions/regular_expression.rb'
-    - 'spec/cucumber/cucumber_expressions/combinatorial_generated_expression_factory_test.rb'
-    - 'spec/cucumber/cucumber_expressions/cucumber_expression_generator_spec.rb'
-    - 'spec/cucumber/cucumber_expressions/cucumber_expression_tokenizer_spec.rb'
-    - 'spec/cucumber/cucumber_expressions/custom_parameter_type_spec.rb'
-    - 'spec/cucumber/cucumber_expressions/parameter_type_registry_spec.rb'
-    - 'spec/cucumber/cucumber_expressions/parameter_type_spec.rb'
-    - 'spec/cucumber/cucumber_expressions/tree_regexp_spec.rb'
+  EnforcedStyle: consistent
 
 # Offense count: 1
 # This cop supports safe auto-correction (--auto-correct).
@@ -114,47 +38,27 @@ Lint/DuplicateBranch:
     - 'lib/cucumber/cucumber_expressions/ast.rb'
     - 'lib/cucumber/cucumber_expressions/cucumber_expression_parser.rb'
 
-# Offense count: 10
+# Offense count: 5
 # Configuration parameters: AllowComments.
 Lint/EmptyClass:
   Exclude:
-    - 'spec/cucumber/cucumber_expressions/combinatorial_generated_expression_factory_test.rb'
     - 'spec/cucumber/cucumber_expressions/cucumber_expression_generator_spec.rb'
     - 'spec/cucumber/cucumber_expressions/cucumber_expression_spec.rb'
     - 'spec/cucumber/cucumber_expressions/parameter_type_registry_spec.rb'
 
-# Offense count: 1
-Lint/MixedRegexpCaptureTypes:
-  Exclude:
-    - 'spec/cucumber/cucumber_expressions/tree_regexp_spec.rb'
-
 # Offense count: 1
 # This cop supports unsafe auto-correction (--auto-correct-all).
 Lint/NonDeterministicRequireOrder:
   Exclude:
     - 'Rakefile'
 
-# Offense count: 1
-Lint/NonLocalExitFromIterator:
-  Exclude:
-    - 'lib/cucumber/cucumber_expressions/combinatorial_generated_expression_factory.rb'
-
-# Offense count: 7
+# Offense count: 5
 # Configuration parameters: AllowKeywordBlockArguments.
 Lint/UnderscorePrefixedVariableName:
   Exclude:
-    - 'lib/cucumber/cucumber_expressions/ast.rb'
     - 'lib/cucumber/cucumber_expressions/cucumber_expression_parser.rb'
     - 'lib/cucumber/cucumber_expressions/group.rb'
 
-# Offense count: 14
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: IgnoreEmptyBlocks, AllowUnusedKeywordArguments.
-Lint/UnusedBlockArgument:
-  Exclude:
-    - 'spec/cucumber/cucumber_expressions/combinatorial_generated_expression_factory_test.rb'
-    - 'spec/cucumber/cucumber_expressions/parameter_type_registry_spec.rb'
-
 # Offense count: 10
 # Configuration parameters: IgnoredMethods, CountRepeatedAttributes.
 Metrics/AbcSize:
@@ -201,21 +105,6 @@ Metrics/ParameterLists:
 Metrics/PerceivedComplexity:
   Max: 17
 
-# Offense count: 10
-# Configuration parameters: MinNameLength, AllowNamesEndingInNumbers, AllowedNames, ForbiddenNames.
-Naming/BlockParameterName:
-  Exclude:
-    - 'lib/cucumber/cucumber_expressions/cucumber_expression.rb'
-    - 'lib/cucumber/cucumber_expressions/cucumber_expression_parser.rb'
-    - 'lib/cucumber/cucumber_expressions/parameter_type_matcher.rb'
-
-# Offense count: 2
-# Configuration parameters: ForbiddenDelimiters.
-# ForbiddenDelimiters: (?-mix:(^|\s)(EO[A-Z]{1}|END)(\s|$))
-Naming/HeredocDelimiterNaming:
-  Exclude:
-    - 'lib/cucumber/cucumber_expressions/errors.rb'
-
 # Offense count: 7
 # Configuration parameters: MinNameLength, AllowNamesEndingInNumbers, AllowedNames, ForbiddenNames.
 # AllowedNames: at, by, db, id, in, io, ip, of, on, os, pp, to
@@ -238,14 +127,59 @@ Naming/PredicateName:
     - 'lib/cucumber/cucumber_expressions/parameter_type.rb'
     - 'lib/cucumber/cucumber_expressions/tree_regexp.rb'
 
-# Offense count: 20
-# Configuration parameters: EnforcedStyle, AllowedIdentifiers.
-# SupportedStyles: snake_case, camelCase
-Naming/VariableName:
+# Offense count: 3
+# This cop supports safe auto-correction (--auto-correct).
+Performance/RedundantBlockCall:
   Exclude:
     - 'lib/cucumber/cucumber_expressions/cucumber_expression.rb'
-    - 'lib/cucumber/cucumber_expressions/cucumber_expression_parser.rb'
-    - 'lib/cucumber/cucumber_expressions/parameter_type_matcher.rb'
+
+# Offense count: 2
+# Configuration parameters: Prefixes.
+# Prefixes: when, with, without
+RSpec/ContextWording:
+  Exclude:
+    - 'spec/cucumber/cucumber_expressions/cucumber_expression_generator_spec.rb'
+
+# Offense count: 29
+# Configuration parameters: Max.
+RSpec/ExampleLength:
+  Exclude:
+    - 'spec/cucumber/cucumber_expressions/combinatorial_generated_expression_factory_spec.rb'
+    - 'spec/cucumber/cucumber_expressions/cucumber_expression_generator_spec.rb'
+    - 'spec/cucumber/cucumber_expressions/cucumber_expression_parser_spec.rb'
+    - 'spec/cucumber/cucumber_expressions/cucumber_expression_spec.rb'
+    - 'spec/cucumber/cucumber_expressions/cucumber_expression_tokenizer_spec.rb'
+    - 'spec/cucumber/cucumber_expressions/cucumber_expression_transformation_spec.rb'
+    - 'spec/cucumber/cucumber_expressions/custom_parameter_type_spec.rb'
+    - 'spec/cucumber/cucumber_expressions/parameter_type_registry_spec.rb'
+    - 'spec/cucumber/cucumber_expressions/parameter_type_spec.rb'
+    - 'spec/cucumber/cucumber_expressions/regular_expression_spec.rb'
+    - 'spec/cucumber/cucumber_expressions/tree_regexp_spec.rb'
+
+# Offense count: 3
+RSpec/LeakyConstantDeclaration:
+  Exclude:
+    - 'spec/cucumber/cucumber_expressions/cucumber_expression_generator_spec.rb'
+    - 'spec/cucumber/cucumber_expressions/cucumber_expression_spec.rb'
+
+# Offense count: 34
+RSpec/MultipleExpectations:
+  Max: 30
+
+# Offense count: 1
+# Configuration parameters: AllowSubject.
+RSpec/MultipleMemoizedHelpers:
+  Max: 6
+
+# Offense count: 2
+RSpec/RepeatedDescription:
+  Exclude:
+    - 'spec/cucumber/cucumber_expressions/tree_regexp_spec.rb'
+
+# Offense count: 2
+RSpec/RepeatedExample:
+  Exclude:
+    - 'spec/cucumber/cucumber_expressions/tree_regexp_spec.rb'
 
 # Offense count: 2
 # Configuration parameters: EnforcedStyle, AllowModifiersOnSymbols.
@@ -254,7 +188,7 @@ Style/AccessModifierDeclarations:
   Exclude:
     - 'lib/cucumber/cucumber_expressions/tree_regexp.rb'
 
-# Offense count: 5
+# Offense count: 4
 # This cop supports safe auto-correction (--auto-correct).
 # Configuration parameters: EnforcedStyle, ProceduralMethods, FunctionalMethods, IgnoredMethods, AllowBracesOnProceduralOneLiners, BracesRequiredMethods.
 # SupportedStyles: line_count_based, semantic, braces_for_chaining, always_braces
@@ -267,7 +201,6 @@ Style/BlockDelimiters:
     - 'spec/cucumber/cucumber_expressions/cucumber_expression_spec.rb'
     - 'spec/cucumber/cucumber_expressions/cucumber_expression_transformation_spec.rb'
     - 'spec/cucumber/cucumber_expressions/custom_parameter_type_spec.rb'
-    - 'spec/cucumber/cucumber_expressions/tree_regexp_spec.rb'
 
 # Offense count: 1
 # This cop supports unsafe auto-correction (--auto-correct-all).
@@ -378,12 +311,6 @@ Style/ParallelAssignment:
     - 'lib/cucumber/cucumber_expressions/parameter_type_matcher.rb'
     - 'spec/cucumber/cucumber_expressions/custom_parameter_type_spec.rb'
 
-# Offense count: 1
-# This cop supports safe auto-correction (--auto-correct).
-Style/PerlBackrefs:
-  Exclude:
-    - 'lib/cucumber/cucumber_expressions/parameter_type.rb'
-
 # Offense count: 1
 # This cop supports unsafe auto-correction (--auto-correct-all).
 # Configuration parameters: EnforcedStyle.
@@ -473,7 +400,7 @@ Style/SymbolProc:
     - 'lib/cucumber/cucumber_expressions/ast.rb'
     - 'lib/cucumber/cucumber_expressions/cucumber_expression_parser.rb'
     - 'lib/cucumber/cucumber_expressions/errors.rb'
-    - 'spec/cucumber/cucumber_expressions/combinatorial_generated_expression_factory_test.rb'
+    - 'spec/cucumber/cucumber_expressions/combinatorial_generated_expression_factory_spec.rb'
     - 'spec/cucumber/cucumber_expressions/cucumber_expression_tokenizer_spec.rb'
     - 'spec/cucumber/cucumber_expressions/tree_regexp_spec.rb'
 
@@ -484,7 +411,7 @@ Style/SymbolProc:
 Style/TrailingCommaInArrayLiteral:
   Exclude:
     - 'lib/cucumber/cucumber_expressions/cucumber_expression_parser.rb'
-    - 'spec/cucumber/cucumber_expressions/combinatorial_generated_expression_factory_test.rb'
+    - 'spec/cucumber/cucumber_expressions/combinatorial_generated_expression_factory_spec.rb'
 
 # Offense count: 1
 # This cop supports safe auto-correction (--auto-correct).
@@ -494,14 +421,6 @@ Style/TrailingCommaInHashLiteral:
   Exclude:
     - 'cucumber-cucumber-expressions.gemspec'
 
-# Offense count: 9
-# This cop supports safe auto-correction (--auto-correct).
-# Configuration parameters: ExactNameMatch, AllowPredicates, AllowDSLWriters, IgnoreClassMethods, AllowedMethods.
-# AllowedMethods: to_ary, to_a, to_c, to_enum, to_h, to_hash, to_i, to_int, to_io, to_open, to_path, to_proc, to_r, to_regexp, to_str, to_s, to_sym
-Style/TrivialAccessors:
-  Exclude:
-    - 'lib/cucumber/cucumber_expressions/ast.rb'
-
 # Offense count: 1
 # This cop supports safe auto-correction (--auto-correct).
 Style/WhileUntilDo:

ruby/cucumber-cucumber-expressions.gemspec

@@ -17,15 +17,18 @@ Gem::Specification.new do |s|
 
   s.metadata = {
     'bug_tracker_uri' => 'https://github.com/cucumber/cucumber/issues',
-    'changelog_uri'     => 'https://github.com/cucumber/common/blob/main/cucumber-expressions/CHANGELOG.md',
+    'changelog_uri' => 'https://github.com/cucumber/common/blob/main/cucumber-expressions/CHANGELOG.md',
     'documentation_uri' => 'https://cucumber.io/docs/cucumber/cucumber-expressions/',
-    'mailing_list_uri'  => 'https://groups.google.com/forum/#!forum/cukes',
-    'source_code_uri'   => 'https://github.com/cucumber/common/blob/main/cucumber-expressions/ruby',
+    'mailing_list_uri' => 'https://groups.google.com/forum/#!forum/cukes',
+    'source_code_uri' => 'https://github.com/cucumber/common/blob/main/cucumber-expressions/ruby',
   }
 
   s.add_development_dependency 'rake', '~> 13.0', '>= 13.0.6'
   s.add_development_dependency 'rspec', '~> 3.11', '>= 3.11.0'
   s.add_development_dependency 'rubocop', '~> 1.27.0'
+  s.add_development_dependency 'rubocop-performance', '~> 1.7.0'
+  s.add_development_dependency 'rubocop-rake', '~> 0.5.0'
+  s.add_development_dependency 'rubocop-rspec', '~> 2.0.0'
 
   s.files            = `git ls-files`.split("\n").reject { |path| path =~ /\.gitignore$/ }
   s.rdoc_options     = ['--charset=UTF-8']

ruby/lib/cucumber/cucumber_expressions/combinatorial_generated_expression_factory.rb

@@ -30,7 +30,7 @@ def generate_permutations(generated_expressions, depth, current_parameter_types)
 
         (0...@parameter_type_combinations[depth].length).each do |i|
           # Avoid recursion if no elements can be added.
-          return if generated_expressions.length >= MAX_EXPRESSIONS
+          break if generated_expressions.length >= MAX_EXPRESSIONS
 
           new_current_parameter_types = current_parameter_types.dup # clone
           new_current_parameter_types.push(@parameter_type_combinations[depth][i])