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-rw-r--r--activerecord/test/cases/adapters/mysql/mysql_adapter_test.rb6
1 files changed, 6 insertions, 0 deletions
diff --git a/activerecord/test/cases/adapters/mysql/mysql_adapter_test.rb b/activerecord/test/cases/adapters/mysql/mysql_adapter_test.rb
index 28106d3772..85db8f4614 100644
--- a/activerecord/test/cases/adapters/mysql/mysql_adapter_test.rb
+++ b/activerecord/test/cases/adapters/mysql/mysql_adapter_test.rb
@@ -99,6 +99,12 @@ module ActiveRecord
end
end
+ def test_composite_primary_key
+ with_example_table '`id` INT(11), `number` INT(11), foo INT(11), PRIMARY KEY (`id`, `number`)' do
+ assert_nil @conn.primary_key('ex')
+ end
+ end
+
def test_tinyint_integer_typecasting
with_example_table '`status` TINYINT(4)' do
insert(@conn, { 'status' => 2 }, 'ex')