[Fix rubocop#1799] Fix RSpec/ExampleWording autocorrection to escape quotes

Author: r7kamura

lib/rubocop/cop/rspec/example_wording.rb

@@ -92,7 +92,11 @@ def add_wording_offense(node, message)
           add_offense(docstring, message: message) do |corrector|
             next if node.heredoc?
 
-            corrector.replace(docstring, replacement_text(node))
+            if node.str_type? && needs_escape?(node)
+              corrector.replace(node, replacement_text(node).inspect)
+            else
+              corrector.replace(docstring, replacement_text(node))
+            end
           end
         end
 
@@ -106,6 +110,11 @@ def docstring(node)
           )
         end
 
+        def needs_escape?(node)
+          node.value.include?(node.loc.begin.source) ||
+            node.value.include?(node.loc.end.source)
+        end
+
         def replacement_text(node)
           text = text(node)
 

spec/rubocop/cop/rspec/example_wording_spec.rb

@@ -351,5 +351,31 @@
         end
       RUBY
     end
+
+    it 'keeps single-quote after autocorrection' do
+      expect_offense(<<~'RUBY')
+        it 'should return foo\'s bar' do
+            ^^^^^^^^^^^^^^^^^^^^^^^^ Do not use should when describing your tests.
+        end
+      RUBY
+
+      expect_correction(<<~RUBY)
+        it "returns foo's bar" do
+        end
+      RUBY
+    end
+
+    it 'keeps double-quote after autocorrection' do
+      expect_offense(<<~'RUBY')
+        it "should return \"foo\"" do
+            ^^^^^^^^^^^^^^^^^^^^^ Do not use should when describing your tests.
+        end
+      RUBY
+
+      expect_correction(<<~'RUBY')
+        it "returns \"foo\"" do
+        end
+      RUBY
+    end
   end
 end