Fix `CustomCops/AssertNot` to allow it to have failure message

Follow up of #32605.

1 files changed, 3 insertions, 3 deletions

diff --git a/activerecord/test/cases/modules_test.rb b/activerecord/test/cases/modules_test.rb
index 060d555607..87455e4fcb 100644
--- a/activerecord/test/cases/modules_test.rb
+++ b/activerecord/test/cases/modules_test.rb
@@ -32,7 +32,7 @@ class ModulesTest < ActiveRecord::TestCase
 
   def test_module_spanning_associations
     firm = MyApplication::Business::Firm.first
-    assert !firm.clients.empty?, "Firm should have clients"
+    assert_not firm.clients.empty?, "Firm should have clients"
     assert_nil firm.class.table_name.match("::"), "Firm shouldn't have the module appear in its table name"
   end
 
@@ -155,7 +155,7 @@ class ModulesTest < ActiveRecord::TestCase
     ActiveRecord::Base.store_full_sti_class = true
 
     collection = Shop::Collection.first
-    assert !collection.products.empty?, "Collection should have products"
+    assert_not collection.products.empty?, "Collection should have products"
     assert_nothing_raised { collection.destroy }
   ensure
     ActiveRecord::Base.store_full_sti_class = old
@@ -166,7 +166,7 @@ class ModulesTest < ActiveRecord::TestCase
     ActiveRecord::Base.store_full_sti_class = true
 
     product = Shop::Product.first
-    assert !product.variants.empty?, "Product should have variants"
+    assert_not product.variants.empty?, "Product should have variants"
     assert_nothing_raised { product.destroy }
   ensure
     ActiveRecord::Base.store_full_sti_class = old