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-rw-r--r--activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb10
1 files changed, 10 insertions, 0 deletions
diff --git a/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb b/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
index f4d14853d3..839a7852fc 100644
--- a/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
@@ -100,6 +100,16 @@ class HasAndBelongsToManyAssociationsTest < ActiveRecord::TestCase
assert_equal 'c1', record[0]
assert_equal 't1', record[1]
end
+
+ def test_proper_usage_of_primary_keys_and_join_table
+ setup_data_for_habtm_case
+
+ assert_equal 'country_id', Country.primary_key
+ assert_equal 'treaty_id', Treaty.primary_key
+
+ country = Country.first
+ assert_equal 1, country.treaties.count
+ end
def test_has_and_belongs_to_many
david = Developer.find(1)