Merge pull request #1374 from fatkodima/env_local-handle-negations

Change `Rails/EnvLocal` to handle negated conditions

Author: koic

changelog/change_env_local_to_handle_negated_conditions.md

@@ -0,0 +1 @@
+* [#1374](https://github.com/rubocop/rubocop-rails/pull/1374): Change `Rails/EnvLocal` to handle negated conditions. ([@fatkodima][])

lib/rubocop/cop/rails/env_local.rb

@@ -19,27 +19,50 @@ class EnvLocal < Base
         extend TargetRailsVersion
 
         MSG = 'Use `Rails.env.local?` instead.'
+        MSG_NEGATED = 'Use `!Rails.env.local?` instead.'
         LOCAL_ENVIRONMENTS = %i[development? test?].to_set.freeze
 
         minimum_target_rails_version 7.1
 
-        # @!method rails_env_local_candidate?(node)
-        def_node_matcher :rails_env_local_candidate?, <<~PATTERN
+        # @!method rails_env_local_or?(node)
+        def_node_matcher :rails_env_local_or?, <<~PATTERN
           (or
             (send (send (const {cbase nil? } :Rails) :env) $%LOCAL_ENVIRONMENTS)
             (send (send (const {cbase nil? } :Rails) :env) $%LOCAL_ENVIRONMENTS)
           )
         PATTERN
 
+        # @!method rails_env_local_and?(node)
+        def_node_matcher :rails_env_local_and?, <<~PATTERN
+          (and
+            (send
+              (send (send (const {cbase nil? } :Rails) :env) $%LOCAL_ENVIRONMENTS)
+              :!)
+            (send
+              (send (send (const {cbase nil? } :Rails) :env) $%LOCAL_ENVIRONMENTS)
+              :!)
+          )
+        PATTERN
+
         def on_or(node)
-          rails_env_local_candidate?(node) do |*environments|
+          rails_env_local_or?(node) do |*environments|
             next unless environments.to_set == LOCAL_ENVIRONMENTS
 
             add_offense(node) do |corrector|
               corrector.replace(node, 'Rails.env.local?')
             end
           end
         end
+
+        def on_and(node)
+          rails_env_local_and?(node) do |*environments|
+            next unless environments.to_set == LOCAL_ENVIRONMENTS
+
+            add_offense(node, message: MSG_NEGATED) do |corrector|
+              corrector.replace(node, '!Rails.env.local?')
+            end
+          end
+        end
       end
     end
   end

spec/rubocop/cop/rails/env_local_spec.rb

@@ -10,6 +10,14 @@
       RUBY
     end
 
+    it 'registers no offenses for non-local `!Rails.env._? && !Rails.env._?`' do
+      expect_no_offenses(<<~RUBY)
+        !Rails.env.development? && Rails.env.production?
+        !Rails.env.test? && Rails.env.production?
+        !Rails.env.production? && Rails.env.other?
+      RUBY
+    end
+
     it 'registers no offenses for single `Rails.env._?`' do
       expect_no_offenses(<<~RUBY)
         Rails.env.development?
@@ -35,6 +43,20 @@
       RUBY
     end
 
+    it 'registers an offense for `!Rails.env.development? && !Rails.env.test?`' do
+      expect_offense(<<~RUBY)
+        !Rails.env.development? && !Rails.env.test?
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Use `!Rails.env.local?` instead.
+        !Rails.env.test? && !Rails.env.development?
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Use `!Rails.env.local?` instead.
+      RUBY
+
+      expect_correction(<<~RUBY)
+        !Rails.env.local?
+        !Rails.env.local?
+      RUBY
+    end
+
     it 'registers no offenses for `Rails.env.local?`' do
       expect_no_offenses(<<~RUBY)
         Rails.env.local?
@@ -52,6 +74,13 @@
       RUBY
     end
 
+    it 'registers no offenses for `!Rails.env.development? && !Rails.env.test?`' do
+      expect_no_offenses(<<~RUBY)
+        !Rails.env.development? && !Rails.env.test?
+        !Rails.env.test? && !Rails.env.development?
+      RUBY
+    end
+
     it 'registers no offenses for `Rails.env.local?`' do
       expect_no_offenses(<<~RUBY)
         Rails.env.local?