Add test case for interpolation with passing of data along with record attribute in error message, where a proc is passed.

1 files changed, 8 insertions, 0 deletions

diff --git a/activemodel/test/cases/validations_test.rb b/activemodel/test/cases/validations_test.rb
index 18b8d9e4af..2a4e9f842f 100644
--- a/activemodel/test/cases/validations_test.rb
+++ b/activemodel/test/cases/validations_test.rb
@@ -452,4 +452,12 @@ class ValidationsTest < ActiveModel::TestCase
     assert t.invalid?
     assert_equal ["You have failed me for the last time, Admiral."], t.errors[:title]
   end
+
+  def test_validation_with_message_as_proc_that_takes_record_and_data_as_a_parameters
+    Topic.validates_presence_of(:title, message: proc { |record, data| "#{data[:attribute]} is missing. You have failed me for the last time, #{record.author_name}." })
+
+    t = Topic.new(author_name: 'Admiral')
+    assert t.invalid?
+    assert_equal ["Title is missing. You have failed me for the last time, Admiral."], t.errors[:title]
+  end
 end