rewrite inheritance tests with a custom inheritance_column

previously the tests with and without a custom `inheritance_column`
used the same models. Since the model then has both fields this can lead
to false positives.

1 files changed, 10 insertions, 0 deletions

diff --git a/activerecord/test/models/vegetables.rb b/activerecord/test/models/vegetables.rb
index 59cedfd9f5..1f41cde3a5 100644
--- a/activerecord/test/models/vegetables.rb
+++ b/activerecord/test/models/vegetables.rb
@@ -12,3 +12,13 @@ end
 
 class Cabbage < Vegetable
 end
+
+class GreenCabbage < Cabbage
+end
+
+class KingCole < GreenCabbage
+end
+
+class RedCabbage < Cabbage
+  belongs_to :seller, :class_name => 'Company'
+end