Fix rubocop issues

Author: nourmat

lib/rspec/active_model/mocks/mocks.rb

@@ -106,6 +106,7 @@ def mock_model(string_or_model_class, stubs={})
           model_class = Object.const_set(string_or_model_class, Class.new do
             # rubocop:disable  Style/SingleLineMethods
             extend ::ActiveModel::Naming
+
             def self.primary_key; :id; end
 
             # For detection of being a valid association in 7+
@@ -149,6 +150,7 @@ def self.param_delimiter; "-"; end
         msingleton = class << m; self; end
         msingleton.class_eval do
           include ActiveModelInstanceMethods
+
           include ActiveRecordInstanceMethods if defined?(ActiveRecord)
           include ActiveModel::Conversion
           include ActiveModel::Validations

spec/rspec/active_model/mocks/mock_model_spec.rb

@@ -557,6 +557,7 @@ def self.===(_other)
             ERR
           end
           include Test::Unit::Assertions
+
           if defined?((Test::Unit::AutoRunner.need_auto_run = ()))
             Test::Unit::AutoRunner.need_auto_run = false
           elsif defined?((Test::Unit.run = ()))
@@ -570,6 +571,7 @@ def self.===(_other)
       else
         require 'test/unit/assertions'
         include Test::Unit::Assertions
+
         if defined?((Test::Unit::AutoRunner.need_auto_run = ()))
           Test::Unit::AutoRunner.need_auto_run = false
         elsif defined?((Test::Unit.run = ()))

spec/support/ar_classes.rb

@@ -41,6 +41,7 @@ class NonActiveRecordModel
 
 class MockableModel < ActiveRecord::Base
   extend Connections
+
   has_one :associated_model
 end
 
@@ -54,12 +55,14 @@ class SubMockableModel < MockableModel
 
 class AssociatedModel < ActiveRecord::Base
   extend Connections
+
   belongs_to :mockable_model
   belongs_to :nonexistent_model, :class_name => "Other"
 end
 
 class AlternatePrimaryKeyModel < ActiveRecord::Base
   self.primary_key = :my_id
   extend Connections
+
   attr_accessor :my_id
 end