From 8627bb79ddf572398452deaf2a0ff6c65008c9b1 Mon Sep 17 00:00:00 2001
From: Michael Glass <me@mike.is>
Date: Tue, 12 Nov 2024 16:10:51 +0100
Subject: [PATCH] rubocop -A

---
 Appraisals                                    |   2 +
 Gemfile                                       |   2 +
 Rakefile                                      |   2 +
 bin/console                                   |   1 +
 exe/generate_edges                            |   1 +
 lib/rails_edge_test.rb                        |   2 +
 lib/rails_edge_test/configuration.rb          |  14 +-
 lib/rails_edge_test/dsl.rb                    |   2 +
 lib/rails_edge_test/dsl/action.rb             |  78 +++----
 lib/rails_edge_test/dsl/controller.rb         |  44 ++--
 lib/rails_edge_test/dsl/edge.rb               | 202 +++++++++---------
 lib/rails_edge_test/dsl/let_handler.rb        |  30 +--
 lib/rails_edge_test/printers/boring.rb        |  52 ++---
 lib/rails_edge_test/printers/silent.rb        |  24 ++-
 lib/rails_edge_test/printers/tree.rb          |  80 +++----
 lib/rails_edge_test/runner.rb                 |   2 +
 lib/rails_edge_test/version.rb                |   2 +
 rails_edge_test.gemspec                       |   2 +
 spec/rails_edge_test/configuration_spec.rb    |   2 +
 spec/rails_edge_test/dsl/edge_spec.rb         |   8 +-
 spec/rails_edge_test/dsl/let_handler_spec.rb  |   4 +-
 spec/rails_edge_test/dsl_spec.rb              |   2 +
 spec/rails_edge_test/runner_spec.rb           |   2 +
 spec/rails_edge_test_spec.rb                  |   2 +
 spec/rails_helper.rb                          |   2 +
 spec/spec_helper.rb                           |   2 +
 spec/support/test_app/Gemfile                 |   2 +
 spec/support/test_app/Rakefile                |   2 +
 .../app/controllers/application_controller.rb |   2 +
 spec/support/test_app/bin/bundle              |   2 +
 spec/support/test_app/bin/rails               |   2 +
 spec/support/test_app/bin/rake                |   2 +
 spec/support/test_app/bin/setup               |   2 +
 spec/support/test_app/bin/spring              |   1 +
 spec/support/test_app/config.ru               |   2 +
 spec/support/test_app/config/application.rb   |   2 +
 spec/support/test_app/config/boot.rb          |   2 +
 spec/support/test_app/config/environment.rb   |   2 +
 .../config/environments/development.rb        |   2 +
 .../config/environments/production.rb         |   2 +
 .../test_app/config/environments/test.rb      |   2 +
 .../initializers/backtrace_silencers.rb       |   2 +
 .../config/initializers/cookies_serializer.rb |   2 +
 .../initializers/filter_parameter_logging.rb  |   2 +
 .../config/initializers/inflections.rb        |   2 +
 .../config/initializers/mime_types.rb         |   2 +
 .../config/initializers/session_store.rb      |   2 +
 .../to_time_preserves_timezone.rb             |   2 +
 .../config/initializers/wrap_parameters.rb    |   2 +
 spec/support/test_app/config/routes.rb        |   2 +
 spec/support/test_app/db/seeds.rb             |   2 +
 spec/support/test_app/edge/another_edge.rb    |   2 +
 spec/support/test_app/edge/example_edge.rb    |   2 +
 53 files changed, 365 insertions(+), 254 deletions(-)

diff --git a/Appraisals b/Appraisals
index 111e0bc..5fc4f3f 100644
--- a/Appraisals
+++ b/Appraisals
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 appraise 'rails-5.2' do
   gem 'rails', '~> 5.2.0'
 end
diff --git a/Gemfile b/Gemfile
index 3c85da8..16009c1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in rails_edge_test.gemspec
diff --git a/Rakefile b/Rakefile
index 4c774a2..82bb534 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'bundler/gem_tasks'
 require 'rspec/core/rake_task'
 
diff --git a/bin/console b/bin/console
index 19e1532..8c0f358 100755
--- a/bin/console
+++ b/bin/console
@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 require 'bundler/setup'
 require 'rails_edge_test'
diff --git a/exe/generate_edges b/exe/generate_edges
index e233401..cf63fc5 100755
--- a/exe/generate_edges
+++ b/exe/generate_edges
@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 require 'open3'
 require 'rails_edge_test'
diff --git a/lib/rails_edge_test.rb b/lib/rails_edge_test.rb
index 9bf9fca..c3ec65a 100644
--- a/lib/rails_edge_test.rb
+++ b/lib/rails_edge_test.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rails_edge_test/version'
 require 'rails_edge_test/dsl'
 require 'rails_edge_test/dsl/controller'
diff --git a/lib/rails_edge_test/configuration.rb b/lib/rails_edge_test/configuration.rb
index 5947d32..646450e 100644
--- a/lib/rails_edge_test/configuration.rb
+++ b/lib/rails_edge_test/configuration.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module RailsEdgeTest
   class Configuration
     attr_accessor :elm_path, :edge_root_path, :printer
@@ -35,23 +37,17 @@ def after_each(&block)
     end
 
     def wrap_suite_execution(&block)
-      @before_suite_blocks.each do |before_suit_block|
-        before_suit_block.call
-      end
+      @before_suite_blocks.each(&:call)
 
       block.call
     end
 
     def wrap_edge_execution(&edge)
-      @before_each_blocks.each do |before_each_block|
-        before_each_block.call
-      end
+      @before_each_blocks.each(&:call)
 
       edge.call
 
-      @after_each_blocks.each do |after_each_block|
-        after_each_block.call
-      end
+      @after_each_blocks.each(&:call)
     end
   end
 end
diff --git a/lib/rails_edge_test/dsl.rb b/lib/rails_edge_test/dsl.rb
index b2e6380..0a2a14c 100644
--- a/lib/rails_edge_test/dsl.rb
+++ b/lib/rails_edge_test/dsl.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module RailsEdgeTest
   module Dsl
     def controller(controller_class, &)
diff --git a/lib/rails_edge_test/dsl/action.rb b/lib/rails_edge_test/dsl/action.rb
index f91d3cd..a673605 100644
--- a/lib/rails_edge_test/dsl/action.rb
+++ b/lib/rails_edge_test/dsl/action.rb
@@ -1,49 +1,53 @@
-module RailsEdgeTest::Dsl
-  Action = Struct.new(:name, :controller) do
-    def initialize(*args)
-      super
-      @edges = {}
-      @let_handler = LetHandler.new
-    end
+# frozen_string_literal: true
 
-    def edge(description, &block)
-      edge = Edge.new(description, self)
-      @edges[edge] = block
-    end
+module RailsEdgeTest
+  module Dsl
+    Action = Struct.new(:name, :controller) do
+      def initialize(*args)
+        super
+        @edges = {}
+        @let_handler = LetHandler.new
+      end
 
-    def let(title, &block)
-      @let_handler.add_definition(title, &block)
-    end
+      def edge(description, &block)
+        edge = Edge.new(description, self)
+        @edges[edge] = block
+      end
 
-    def generate(title, &block)
-      @let_handler.add_definition("generate_#{title}", &block)
-    end
+      def let(title, &block)
+        @let_handler.add_definition(title, &block)
+      end
 
-    def __edges
-      @edges
-    end
+      def generate(title, &block)
+        @let_handler.add_definition("generate_#{title}", &block)
+      end
 
-    def __let_handler
-      @let_handler
-    end
+      def __edges
+        @edges
+      end
 
-    def controller_class
-      controller.controller_class
-    end
+      def __let_handler
+        @let_handler
+      end
 
-    # support calling methods defined in controller
-    def method_missing(method_name, ...)
-      if controller.respond_to?(method_name)
-        controller.public_send(method_name, ...)
-      else
-        super
+      def controller_class
+        controller.controller_class
+      end
+
+      # support calling methods defined in controller
+      def method_missing(method_name, ...)
+        if controller.respond_to?(method_name)
+          controller.public_send(method_name, ...)
+        else
+          super
+        end
       end
-    end
 
-    # always define respond_to_missing? when defining method_missing:
-    # https://thoughtbot.com/blog/always-define-respond-to-missing-when-overriding
-    def respond_to_missing?(method_name, include_private = false)
-      controller.respond_to?(method_name) || super
+      # always define respond_to_missing? when defining method_missing:
+      # https://thoughtbot.com/blog/always-define-respond-to-missing-when-overriding
+      def respond_to_missing?(method_name, include_private = false)
+        controller.respond_to?(method_name) || super
+      end
     end
   end
 end
diff --git a/lib/rails_edge_test/dsl/controller.rb b/lib/rails_edge_test/dsl/controller.rb
index 0049583..f173a62 100644
--- a/lib/rails_edge_test/dsl/controller.rb
+++ b/lib/rails_edge_test/dsl/controller.rb
@@ -1,27 +1,31 @@
-module RailsEdgeTest::Dsl
-  Controller = Struct.new(:controller_class) do
-    def initialize(*args)
-      super
-      @actions = []
-      @let_handler = LetHandler.new
-    end
+# frozen_string_literal: true
 
-    def action(name, &block)
-      new_action = Action.new(name, self)
-      new_action.instance_exec(&block)
-      @actions << new_action
-    end
+module RailsEdgeTest
+  module Dsl
+    Controller = Struct.new(:controller_class) do
+      def initialize(*args)
+        super
+        @actions = []
+        @let_handler = LetHandler.new
+      end
 
-    def let(title, &block)
-      @let_handler.add_definition(title, &block)
-    end
+      def action(name, &block)
+        new_action = Action.new(name, self)
+        new_action.instance_exec(&block)
+        @actions << new_action
+      end
 
-    def __actions
-      @actions
-    end
+      def let(title, &block)
+        @let_handler.add_definition(title, &block)
+      end
+
+      def __actions
+        @actions
+      end
 
-    def __let_handler
-      @let_handler
+      def __let_handler
+        @let_handler
+      end
     end
   end
 end
diff --git a/lib/rails_edge_test/dsl/edge.rb b/lib/rails_edge_test/dsl/edge.rb
index 9517474..9aa0000 100644
--- a/lib/rails_edge_test/dsl/edge.rb
+++ b/lib/rails_edge_test/dsl/edge.rb
@@ -1,131 +1,135 @@
+# frozen_string_literal: true
+
 require 'action_dispatch'
 require 'action_controller'
 require 'action_controller/test_case'
 
-module RailsEdgeTest::Dsl
-  Edge = Struct.new(:description, :action) do
-    def initialize(*args)
-      super
-      @let_cache = {}
-    end
-
-    delegate :controller_class, to: :action
-    delegate :session, to: :request
-
-    def request
-      @request ||= ActionController::TestRequest.create(controller_class)
-    end
-
-    # In the context of the edge, we want `controller` to be the rails controller
-    # instead of our own RailsEdgeTest::Dsl::Controller. In this way the user can
-    # directly access the rails controller within their edge.
-    def controller
-      @controller ||= controller_class.new
-    end
+module RailsEdgeTest
+  module Dsl
+    Edge = Struct.new(:description, :action) do
+      def initialize(*args)
+        super
+        @let_cache = {}
+      end
 
-    def response
-      @response
-    end
+      delegate :controller_class, to: :action
+      delegate :session, to: :request
 
-    def perform_get(parameters = {})
-      process(parameters)
-    end
+      def request
+        @request ||= ActionController::TestRequest.create(controller_class)
+      end
 
-    def perform_post(parameters = {})
-      request.instance_variable_set(:@method, 'POST')
-      request.env['REQUEST_METHOD'] = 'POST'
-      process(parameters)
-    end
+      # In the context of the edge, we want `controller` to be the rails controller
+      # instead of our own RailsEdgeTest::Dsl::Controller. In this way the user can
+      # directly access the rails controller within their edge.
+      def controller
+        @controller ||= controller_class.new
+      end
 
-    def process(parameters = {})
-      request.assign_parameters(
-        ::Rails.application.routes,
-        controller_class.controller_path,
-        action.name.to_s,
-        parameters.stringify_keys!,
-        '',
-        ''
-      )
-
-      response = ActionDispatch::Response.new.tap do |res|
-        res.request = request
+      def response
+        @response
       end
 
-      @response = controller.dispatch(action.name, request, response)
-    end
+      def perform_get(parameters = {})
+        process(parameters)
+      end
 
-    def produce_elm_file(module_name, ivar: nil)
-      json = produce_json(ivar: ivar)
-      json = json.gsub('\\', '\\\\\\\\') # unbelievably, this replaces \ with \\
+      def perform_post(parameters = {})
+        request.instance_variable_set(:@method, 'POST')
+        request.env['REQUEST_METHOD'] = 'POST'
+        process(parameters)
+      end
 
-      filepath = File.join(
-        RailsEdgeTest.configuration.elm_path,
-        'Edge',
-        controller_class.name.gsub('::', '/')
-      )
+      def process(parameters = {})
+        request.assign_parameters(
+          ::Rails.application.routes,
+          controller_class.controller_path,
+          action.name.to_s,
+          parameters.stringify_keys!,
+          '',
+          ''
+        )
+
+        response = ActionDispatch::Response.new.tap do |res|
+          res.request = request
+        end
+
+        @response = controller.dispatch(action.name, request, response)
+      end
 
-      full_module_name =
-        "#{controller_class.name.gsub('::', '.')}.#{module_name}"
+      def produce_elm_file(module_name, ivar: nil)
+        json = produce_json(ivar: ivar)
+        json = json.gsub('\\', '\\\\\\\\') # unbelievably, this replaces \ with \\
 
-      data = <<~ELM
-        module Edge.#{full_module_name} exposing (json)
+        filepath = File.join(
+          RailsEdgeTest.configuration.elm_path,
+          'Edge',
+          controller_class.name.gsub('::', '/')
+        )
 
+        full_module_name =
+          "#{controller_class.name.gsub('::', '.')}.#{module_name}"
 
-        json : String
-        json =
-            """
-        #{json}
-            """
-      ELM
+        data = <<~ELM
+          module Edge.#{full_module_name} exposing (json)
 
-      write_file(filepath, module_name + '.elm', data)
-    end
 
-    private
+          json : String
+          json =
+              """
+          #{json}
+              """
+        ELM
 
-    def produce_json(ivar: nil)
-      unless response
-        raise 'Must perform a request (for example `perform_get`) before attempting to produce a json file.'
+        write_file(filepath, "#{module_name}.elm", data)
       end
 
-      raise 'Request did not result in a successful (2xx) response!' if response.is_a?(Array) && response[0] >= 300
-
-      ActiveSupport::JSON::Encoding.escape_html_entities_in_json = false
-      if ivar
-        value = controller.send(:instance_variable_get, ivar)
-        JSON.pretty_unparse(value.as_json)
-      elsif response[1]['Content-Type']&.starts_with?('application/json')
-        value = JSON.parse(response[2].body)
-        JSON.pretty_unparse(value)
-      else
-        response[2].body
+      private
+
+      def produce_json(ivar: nil)
+        unless response
+          raise 'Must perform a request (for example `perform_get`) before attempting to produce a json file.'
+        end
+
+        raise 'Request did not result in a successful (2xx) response!' if response.is_a?(Array) && response[0] >= 300
+
+        ActiveSupport::JSON::Encoding.escape_html_entities_in_json = false
+        if ivar
+          value = controller.send(:instance_variable_get, ivar)
+          JSON.pretty_unparse(value.as_json)
+        elsif response[1]['Content-Type']&.starts_with?('application/json')
+          value = JSON.parse(response[2].body)
+          JSON.pretty_unparse(value)
+        else
+          response[2].body
+        end
       end
-    end
 
-    def write_file(filepath, filename, data)
-      FileUtils.mkdir_p(filepath)
+      def write_file(filepath, filename, data)
+        FileUtils.mkdir_p(filepath)
 
-      filepath = File.join(filepath, filename)
+        filepath = File.join(filepath, filename)
 
-      File.open(filepath, 'w') do |f|
-        f.write(data)
-        f.flush
+        File.open(filepath, 'w') do |f|
+          f.write(data)
+          f.flush
+        end
       end
-    end
 
-    # support calling methods defined in action
-    def method_missing(method_name, ...)
-      if action.respond_to?(method_name)
-        action.public_send(method_name, ...)
-      else
-        super
+      # support calling methods defined in action
+      def method_missing(method_name, ...)
+        if action.respond_to?(method_name)
+          action.public_send(method_name, ...)
+        else
+          super
+        end
       end
-    end
 
-    # always define respond_to_missing? when defining method_missing:
-    # https://thoughtbot.com/blog/always-define-respond-to-missing-when-overriding
-    def respond_to_missing?(method_name, include_private = false)
-      action.respond_to?(method_name) || super
+      # always define respond_to_missing? when defining method_missing:
+      # https://thoughtbot.com/blog/always-define-respond-to-missing-when-overriding
+      def respond_to_missing?(method_name, include_private = false)
+        action.respond_to?(method_name) || super
+      end
     end
   end
 end
diff --git a/lib/rails_edge_test/dsl/let_handler.rb b/lib/rails_edge_test/dsl/let_handler.rb
index 392c443..c318662 100644
--- a/lib/rails_edge_test/dsl/let_handler.rb
+++ b/lib/rails_edge_test/dsl/let_handler.rb
@@ -1,20 +1,24 @@
-module RailsEdgeTest::Dsl
-  class LetHandler
-    attr_reader :let_blocks
+# frozen_string_literal: true
 
-    def initialize
-      @let_blocks = {}
-    end
+module RailsEdgeTest
+  module Dsl
+    class LetHandler
+      attr_reader :let_blocks
 
-    def add_definition(title, &block)
-      @let_blocks[title] = block
-    end
+      def initialize
+        @let_blocks = {}
+      end
+
+      def add_definition(title, &block)
+        @let_blocks[title] = block
+      end
 
-    def execute(title)
-      block = @let_blocks[title]
-      raise NoMethodError, "no method or let block defined with name #{title}" unless block
+      def execute(title)
+        block = @let_blocks[title]
+        raise NoMethodError, "no method or let block defined with name #{title}" unless block
 
-      block.call
+        block.call
+      end
     end
   end
 end
diff --git a/lib/rails_edge_test/printers/boring.rb b/lib/rails_edge_test/printers/boring.rb
index 60d07f8..cf99c78 100644
--- a/lib/rails_edge_test/printers/boring.rb
+++ b/lib/rails_edge_test/printers/boring.rb
@@ -1,35 +1,39 @@
-module RailsEdgeTest::Printers
-  class Boring
-    def initialize
-      @count = 0
-    end
+# frozen_string_literal: true
 
-    def begin_suite
-      puts ''
-    end
+module RailsEdgeTest
+  module Printers
+    class Boring
+      def initialize
+        @count = 0
+      end
 
-    def end_suite
-      puts "\n#{@count} edge specs executed."
-    end
+      def begin_suite
+        puts ''
+      end
 
-    def begin_controller(_controller)
-      print '.'
-    end
+      def end_suite
+        puts "\n#{@count} edge specs executed."
+      end
 
-    def end_controller; end
+      def begin_controller(_controller)
+        print '.'
+      end
 
-    def begin_action(_action)
-      print '.'
-    end
+      def end_controller; end
 
-    def end_action; end
+      def begin_action(_action)
+        print '.'
+      end
 
-    def begin_edge(_edge)
-      print '.'
-    end
+      def end_action; end
+
+      def begin_edge(_edge)
+        print '.'
+      end
 
-    def end_edge
-      @count += 1
+      def end_edge
+        @count += 1
+      end
     end
   end
 end
diff --git a/lib/rails_edge_test/printers/silent.rb b/lib/rails_edge_test/printers/silent.rb
index d0f80db..5ca2e91 100644
--- a/lib/rails_edge_test/printers/silent.rb
+++ b/lib/rails_edge_test/printers/silent.rb
@@ -1,19 +1,23 @@
-module RailsEdgeTest::Printers
-  class Silent
-    def begin_suite; end
+# frozen_string_literal: true
 
-    def end_suite; end
+module RailsEdgeTest
+  module Printers
+    class Silent
+      def begin_suite; end
 
-    def begin_controller(_controller); end
+      def end_suite; end
 
-    def end_controller; end
+      def begin_controller(_controller); end
 
-    def begin_action(_action); end
+      def end_controller; end
 
-    def end_action; end
+      def begin_action(_action); end
 
-    def begin_edge(_edge); end
+      def end_action; end
 
-    def end_edge; end
+      def begin_edge(_edge); end
+
+      def end_edge; end
+    end
   end
 end
diff --git a/lib/rails_edge_test/printers/tree.rb b/lib/rails_edge_test/printers/tree.rb
index 7f0585c..ecdbb41 100644
--- a/lib/rails_edge_test/printers/tree.rb
+++ b/lib/rails_edge_test/printers/tree.rb
@@ -1,41 +1,45 @@
-module RailsEdgeTest::Printers
-  class Tree
-    def initialize
-      @count = 0
-    end
-
-    def begin_suite
-      puts ''
-      puts 'Generating Edges...'
-      puts '-------------------'
-      puts ''
-    end
-
-    def end_suite
-      puts "\n#{@count} edge specs executed."
-    end
-
-    def begin_controller(controller)
-      puts controller.controller_class.name
-    end
-
-    def end_controller
-      puts ''
-    end
-
-    def begin_action(action)
-      puts "  #{action.name}"
-    end
-
-    def end_action; end
-
-    def begin_edge(edge)
-      print "    #{edge.description}"
-    end
-
-    def end_edge
-      puts ' ... done'
-      @count += 1
+# frozen_string_literal: true
+
+module RailsEdgeTest
+  module Printers
+    class Tree
+      def initialize
+        @count = 0
+      end
+
+      def begin_suite
+        puts ''
+        puts 'Generating Edges...'
+        puts '-------------------'
+        puts ''
+      end
+
+      def end_suite
+        puts "\n#{@count} edge specs executed."
+      end
+
+      def begin_controller(controller)
+        puts controller.controller_class.name
+      end
+
+      def end_controller
+        puts ''
+      end
+
+      def begin_action(action)
+        puts "  #{action.name}"
+      end
+
+      def end_action; end
+
+      def begin_edge(edge)
+        print "    #{edge.description}"
+      end
+
+      def end_edge
+        puts ' ... done'
+        @count += 1
+      end
     end
   end
 end
diff --git a/lib/rails_edge_test/runner.rb b/lib/rails_edge_test/runner.rb
index bfc5775..b037623 100644
--- a/lib/rails_edge_test/runner.rb
+++ b/lib/rails_edge_test/runner.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module RailsEdgeTest
   module Runner
     module_function
diff --git a/lib/rails_edge_test/version.rb b/lib/rails_edge_test/version.rb
index 6752a3b..6659771 100644
--- a/lib/rails_edge_test/version.rb
+++ b/lib/rails_edge_test/version.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module RailsEdgeTest
   VERSION = '2.0.0'
 end
diff --git a/rails_edge_test.gemspec b/rails_edge_test.gemspec
index c0d37a5..ef03b22 100644
--- a/rails_edge_test.gemspec
+++ b/rails_edge_test.gemspec
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'rails_edge_test/version'
diff --git a/spec/rails_edge_test/configuration_spec.rb b/spec/rails_edge_test/configuration_spec.rb
index bd59b82..e99514c 100644
--- a/spec/rails_edge_test/configuration_spec.rb
+++ b/spec/rails_edge_test/configuration_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rails_helper'
 
 module Namespace
diff --git a/spec/rails_edge_test/dsl/edge_spec.rb b/spec/rails_edge_test/dsl/edge_spec.rb
index ef12c0b..1277f35 100644
--- a/spec/rails_edge_test/dsl/edge_spec.rb
+++ b/spec/rails_edge_test/dsl/edge_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rails_helper'
 
 module Namespace
@@ -65,7 +67,7 @@ class EdgeController2 < EdgeController
       File.join(
         elm_path,
         'Edge/Namespace/EdgeController/',
-        module_name + '.elm'
+        "#{module_name}.elm"
       )
     end
     let(:module_name) { 'MyResponse' }
@@ -253,7 +255,7 @@ def christina
         controller Namespace::EdgeController do
           action :simple do
             def christina(what, &block)
-              block.call(what) if block
+              block&.call(what)
               "#{what} in a bottle"
             end
 
@@ -426,7 +428,7 @@ def christina
           end
 
           action :first do
-            let(:christie) { christina + ' and a lamp' }
+            let(:christie) { "#{christina} and a lamp" }
 
             edge 'call method' do
               test_value = christie
diff --git a/spec/rails_edge_test/dsl/let_handler_spec.rb b/spec/rails_edge_test/dsl/let_handler_spec.rb
index d2e31f7..c0cac2b 100644
--- a/spec/rails_edge_test/dsl/let_handler_spec.rb
+++ b/spec/rails_edge_test/dsl/let_handler_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rails_helper'
 
 class LetHandlerController < ActionController::Base
@@ -195,7 +197,7 @@ def simple
         controller LetHandlerController do
           let(:christina) { 'genie in a bottle' }
           action :first do
-            let(:christie) { christina + ' and a lamp' }
+            let(:christie) { "#{christina} and a lamp" }
             edge 'call let' do
               test_value = christie
             end
diff --git a/spec/rails_edge_test/dsl_spec.rb b/spec/rails_edge_test/dsl_spec.rb
index 53db772..9eeaa1c 100644
--- a/spec/rails_edge_test/dsl_spec.rb
+++ b/spec/rails_edge_test/dsl_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rails_helper'
 
 class MyController < ActionController::Base
diff --git a/spec/rails_edge_test/runner_spec.rb b/spec/rails_edge_test/runner_spec.rb
index 4f5b812..1ef6bdd 100644
--- a/spec/rails_edge_test/runner_spec.rb
+++ b/spec/rails_edge_test/runner_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'rails_helper'
 
 RSpec.describe RailsEdgeTest::Runner do
diff --git a/spec/rails_edge_test_spec.rb b/spec/rails_edge_test_spec.rb
index c7eeca6..9a6af73 100644
--- a/spec/rails_edge_test_spec.rb
+++ b/spec/rails_edge_test_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 RSpec.describe RailsEdgeTest do
diff --git a/spec/rails_helper.rb b/spec/rails_helper.rb
index e73bbf5..1b8ac86 100644
--- a/spec/rails_helper.rb
+++ b/spec/rails_helper.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # This file (and the related Rails app) constructed with the help of
 # https://stackoverflow.com/a/33929321
 
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 31c606e..57db00d 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'bundler/setup'
 require 'rails_edge_test'
 
diff --git a/spec/support/test_app/Gemfile b/spec/support/test_app/Gemfile
index b5e36ed..11143f2 100644
--- a/spec/support/test_app/Gemfile
+++ b/spec/support/test_app/Gemfile
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
diff --git a/spec/support/test_app/Rakefile b/spec/support/test_app/Rakefile
index f7a26dd..e51cf0e 100644
--- a/spec/support/test_app/Rakefile
+++ b/spec/support/test_app/Rakefile
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Add your own tasks in files placed in lib/tasks ending in .rake,
 # for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
 
diff --git a/spec/support/test_app/app/controllers/application_controller.rb b/spec/support/test_app/app/controllers/application_controller.rb
index 88558ae..a16321e 100644
--- a/spec/support/test_app/app/controllers/application_controller.rb
+++ b/spec/support/test_app/app/controllers/application_controller.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ApplicationController < ActionController::Base
   # Prevent CSRF attacks by raising an exception.
   # For APIs, you may want to use :null_session instead.
diff --git a/spec/support/test_app/bin/bundle b/spec/support/test_app/bin/bundle
index f19acf5..2dbb717 100755
--- a/spec/support/test_app/bin/bundle
+++ b/spec/support/test_app/bin/bundle
@@ -1,3 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __dir__)
 load Gem.bin_path('bundler', 'bundle')
diff --git a/spec/support/test_app/bin/rails b/spec/support/test_app/bin/rails
index 7a8ff81..3504c3f 100755
--- a/spec/support/test_app/bin/rails
+++ b/spec/support/test_app/bin/rails
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 begin
   load File.expand_path('spring', __dir__)
 rescue LoadError => e
diff --git a/spec/support/test_app/bin/rake b/spec/support/test_app/bin/rake
index 0ba8c48..1fe6cf0 100755
--- a/spec/support/test_app/bin/rake
+++ b/spec/support/test_app/bin/rake
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 begin
   load File.expand_path('spring', __dir__)
 rescue LoadError => e
diff --git a/spec/support/test_app/bin/setup b/spec/support/test_app/bin/setup
index 6942b15..0a3b26f 100755
--- a/spec/support/test_app/bin/setup
+++ b/spec/support/test_app/bin/setup
@@ -1,4 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 require 'pathname'
 
 # path to your application root.
diff --git a/spec/support/test_app/bin/spring b/spec/support/test_app/bin/spring
index 991bd4e..9bd27ec 100755
--- a/spec/support/test_app/bin/spring
+++ b/spec/support/test_app/bin/spring
@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 # This file loads spring without using Bundler, in order to be fast.
 # It gets overwritten when you run the `spring binstub` command.
diff --git a/spec/support/test_app/config.ru b/spec/support/test_app/config.ru
index 81559b8..afd13e2 100644
--- a/spec/support/test_app/config.ru
+++ b/spec/support/test_app/config.ru
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # This file is used by Rack-based servers to start the application.
 
 require File.expand_path('config/environment', __dir__)
diff --git a/spec/support/test_app/config/application.rb b/spec/support/test_app/config/application.rb
index 2dab606..4b42719 100644
--- a/spec/support/test_app/config/application.rb
+++ b/spec/support/test_app/config/application.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require File.expand_path('boot', __dir__)
 
 require 'rails/all'
diff --git a/spec/support/test_app/config/boot.rb b/spec/support/test_app/config/boot.rb
index 30f5120..30e594e 100644
--- a/spec/support/test_app/config/boot.rb
+++ b/spec/support/test_app/config/boot.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __dir__)
 
 require 'bundler/setup' # Set up gems listed in the Gemfile.
diff --git a/spec/support/test_app/config/environment.rb b/spec/support/test_app/config/environment.rb
index 0b8bdd8..32d57aa 100644
--- a/spec/support/test_app/config/environment.rb
+++ b/spec/support/test_app/config/environment.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Load the Rails application.
 require File.expand_path('application', __dir__)
 
diff --git a/spec/support/test_app/config/environments/development.rb b/spec/support/test_app/config/environments/development.rb
index b55e214..b67a201 100644
--- a/spec/support/test_app/config/environments/development.rb
+++ b/spec/support/test_app/config/environments/development.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
diff --git a/spec/support/test_app/config/environments/production.rb b/spec/support/test_app/config/environments/production.rb
index 9ae9dd2..254b7c2 100644
--- a/spec/support/test_app/config/environments/production.rb
+++ b/spec/support/test_app/config/environments/production.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
diff --git a/spec/support/test_app/config/environments/test.rb b/spec/support/test_app/config/environments/test.rb
index 1c19f08..2e26201 100644
--- a/spec/support/test_app/config/environments/test.rb
+++ b/spec/support/test_app/config/environments/test.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
diff --git a/spec/support/test_app/config/initializers/backtrace_silencers.rb b/spec/support/test_app/config/initializers/backtrace_silencers.rb
index 59385cd..4b63f28 100644
--- a/spec/support/test_app/config/initializers/backtrace_silencers.rb
+++ b/spec/support/test_app/config/initializers/backtrace_silencers.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # You can add backtrace silencers for libraries that you're using but don't wish to see in your backtraces.
diff --git a/spec/support/test_app/config/initializers/cookies_serializer.rb b/spec/support/test_app/config/initializers/cookies_serializer.rb
index 7f70458..0a23b25 100644
--- a/spec/support/test_app/config/initializers/cookies_serializer.rb
+++ b/spec/support/test_app/config/initializers/cookies_serializer.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 Rails.application.config.action_dispatch.cookies_serializer = :json
diff --git a/spec/support/test_app/config/initializers/filter_parameter_logging.rb b/spec/support/test_app/config/initializers/filter_parameter_logging.rb
index 4a994e1..7a4f47b 100644
--- a/spec/support/test_app/config/initializers/filter_parameter_logging.rb
+++ b/spec/support/test_app/config/initializers/filter_parameter_logging.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Configure sensitive parameters which will be filtered from the log file.
diff --git a/spec/support/test_app/config/initializers/inflections.rb b/spec/support/test_app/config/initializers/inflections.rb
index ac033bf..dc84742 100644
--- a/spec/support/test_app/config/initializers/inflections.rb
+++ b/spec/support/test_app/config/initializers/inflections.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Add new inflection rules using the following format. Inflections
diff --git a/spec/support/test_app/config/initializers/mime_types.rb b/spec/support/test_app/config/initializers/mime_types.rb
index dc18996..be6fedc 100644
--- a/spec/support/test_app/config/initializers/mime_types.rb
+++ b/spec/support/test_app/config/initializers/mime_types.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Add new mime types for use in respond_to blocks:
diff --git a/spec/support/test_app/config/initializers/session_store.rb b/spec/support/test_app/config/initializers/session_store.rb
index 438994f..751554c 100644
--- a/spec/support/test_app/config/initializers/session_store.rb
+++ b/spec/support/test_app/config/initializers/session_store.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 Rails.application.config.session_store :cookie_store, key: '_test_app_session'
diff --git a/spec/support/test_app/config/initializers/to_time_preserves_timezone.rb b/spec/support/test_app/config/initializers/to_time_preserves_timezone.rb
index 8674be3..e1e6c75 100644
--- a/spec/support/test_app/config/initializers/to_time_preserves_timezone.rb
+++ b/spec/support/test_app/config/initializers/to_time_preserves_timezone.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Preserve the timezone of the receiver when calling to `to_time`.
diff --git a/spec/support/test_app/config/initializers/wrap_parameters.rb b/spec/support/test_app/config/initializers/wrap_parameters.rb
index 33725e9..246168a 100644
--- a/spec/support/test_app/config/initializers/wrap_parameters.rb
+++ b/spec/support/test_app/config/initializers/wrap_parameters.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # This file contains settings for ActionController::ParamsWrapper which
diff --git a/spec/support/test_app/config/routes.rb b/spec/support/test_app/config/routes.rb
index ac139c0..9f11b47 100644
--- a/spec/support/test_app/config/routes.rb
+++ b/spec/support/test_app/config/routes.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 Rails.application.routes.draw do
   root to: 'application#home'
 end
diff --git a/spec/support/test_app/db/seeds.rb b/spec/support/test_app/db/seeds.rb
index 4edb1e8..1e7cc80 100644
--- a/spec/support/test_app/db/seeds.rb
+++ b/spec/support/test_app/db/seeds.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # This file should contain all the record creation needed to seed the database with its default values.
 # The data can then be loaded with the rake db:seed (or created alongside the db with db:setup).
 #
diff --git a/spec/support/test_app/edge/another_edge.rb b/spec/support/test_app/edge/another_edge.rb
index 5b69897..a256168 100644
--- a/spec/support/test_app/edge/another_edge.rb
+++ b/spec/support/test_app/edge/another_edge.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 include RailsEdgeTest::Dsl
 
 controller ApplicationController do
diff --git a/spec/support/test_app/edge/example_edge.rb b/spec/support/test_app/edge/example_edge.rb
index db3fc50..4c6b0b3 100644
--- a/spec/support/test_app/edge/example_edge.rb
+++ b/spec/support/test_app/edge/example_edge.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 include RailsEdgeTest::Dsl
 
 controller ApplicationController do