Ignore example groups defined inside methods

Author: pirj

lib/rubocop/cop/rspec/empty_example_group.rb

@@ -160,6 +160,8 @@ class EmptyExampleGroup < Base
         PATTERN
 
         def on_block(node)
+          return if node.each_ancestor(:def, :defs).any?
+
           example_group_body(node) do |body|
             add_offense(node.send_node) unless examples?(body)
           end

spec/rubocop/cop/rspec/empty_example_group_spec.rb

@@ -258,4 +258,28 @@
       describe Foo
     RUBY
   end
+
+  it 'ignores example groups defined inside methods' do
+    expect_no_offenses(<<~RUBY)
+      RSpec.describe Foo do
+        def self.with_yaml_loaded(&block)
+          context 'with YAML loaded' do
+            module_exec(&block)
+          end
+        end
+
+        class << self
+          def without_yaml_loaded(&block)
+            context 'without YAML loaded' do
+              module_exec(&block)
+            end
+          end
+        end
+
+        with_yaml_loaded do
+          it_behaves_like 'normal YAML serialization'
+        end
+      end
+    RUBY
+  end
 end