Delete records that were created as part of test before adding index back

Author: Aidan Haran

test/cases/coerced_tests.rb

@@ -1521,6 +1521,7 @@ def test_statement_cache_values_differ_coerced
 
       original_test_statement_cache_values_differ
     ensure
+      Book.where(author_id: nil, name: nil).delete_all
       Book.connection.add_index(:books, [:author_id, :name], unique: true)
     end
   end
@@ -1748,6 +1749,7 @@ class EnumTest < ActiveRecord::TestCase
 
     send(:'original_enums are distinct per class')
   ensure
+    Book.where(author_id: nil, name: nil).delete_all
     Book.connection.add_index(:books, [:author_id, :name], unique: true)
   end
 
@@ -1758,6 +1760,7 @@ class EnumTest < ActiveRecord::TestCase
 
     send(:'original_creating new objects with enum scopes')
   ensure
+    Book.where(author_id: nil, name: nil).delete_all
     Book.connection.add_index(:books, [:author_id, :name], unique: true)
   end
 
@@ -1768,6 +1771,7 @@ class EnumTest < ActiveRecord::TestCase
 
     send(:'original_enums are inheritable')
   ensure
+    Book.where(author_id: nil, name: nil).delete_all
     Book.connection.add_index(:books, [:author_id, :name], unique: true)
   end
 
@@ -1778,6 +1782,7 @@ class EnumTest < ActiveRecord::TestCase
 
     send(:'original_declare multiple enums at a time')
   ensure
+    Book.where(author_id: nil, name: nil).delete_all
     Book.connection.add_index(:books, [:author_id, :name], unique: true)
   end
 end