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-rw-r--r--activerecord/test/cases/dup_test.rb14
1 files changed, 14 insertions, 0 deletions
diff --git a/activerecord/test/cases/dup_test.rb b/activerecord/test/cases/dup_test.rb
index 71b2b16608..4e2adff344 100644
--- a/activerecord/test/cases/dup_test.rb
+++ b/activerecord/test/cases/dup_test.rb
@@ -107,5 +107,19 @@ module ActiveRecord
assert Topic.after_initialize_called
end
+ def test_dup_validity_is_independent
+ Topic.validates_presence_of :title
+ topic = Topic.new("title" => "Litterature")
+ topic.valid?
+
+ duped = topic.dup
+ duped.title = nil
+ assert duped.invalid?
+
+ topic.title = nil
+ duped.title = 'Mathematics'
+ assert topic.invalid?
+ assert duped.valid?
+ end
end
end