diff options
Diffstat (limited to 'activerecord/test/cases/adapters/mysql2/mysql2_adapter_test.rb')
-rw-r--r-- | activerecord/test/cases/adapters/mysql2/mysql2_adapter_test.rb | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/activerecord/test/cases/adapters/mysql2/mysql2_adapter_test.rb b/activerecord/test/cases/adapters/mysql2/mysql2_adapter_test.rb new file mode 100644 index 0000000000..d18fb97e05 --- /dev/null +++ b/activerecord/test/cases/adapters/mysql2/mysql2_adapter_test.rb @@ -0,0 +1,77 @@ +# frozen_string_literal: true + +require "cases/helper" +require "support/ddl_helper" + +class Mysql2AdapterTest < ActiveRecord::Mysql2TestCase + include DdlHelper + + def setup + @conn = ActiveRecord::Base.connection + end + + def test_exec_query_nothing_raises_with_no_result_queries + assert_nothing_raised do + with_example_table do + @conn.exec_query("INSERT INTO ex (number) VALUES (1)") + @conn.exec_query("DELETE FROM ex WHERE number = 1") + end + end + end + + def test_columns_for_distinct_zero_orders + assert_equal "posts.id", + @conn.columns_for_distinct("posts.id", []) + end + + def test_columns_for_distinct_one_order + assert_equal "posts.id, posts.created_at AS alias_0", + @conn.columns_for_distinct("posts.id", ["posts.created_at desc"]) + end + + def test_columns_for_distinct_few_orders + assert_equal "posts.id, posts.created_at AS alias_0, posts.position AS alias_1", + @conn.columns_for_distinct("posts.id", ["posts.created_at desc", "posts.position asc"]) + end + + def test_columns_for_distinct_with_case + assert_equal( + "posts.id, CASE WHEN author.is_active THEN UPPER(author.name) ELSE UPPER(author.email) END AS alias_0", + @conn.columns_for_distinct("posts.id", + ["CASE WHEN author.is_active THEN UPPER(author.name) ELSE UPPER(author.email) END"]) + ) + end + + def test_columns_for_distinct_blank_not_nil_orders + assert_equal "posts.id, posts.created_at AS alias_0", + @conn.columns_for_distinct("posts.id", ["posts.created_at desc", "", " "]) + end + + def test_columns_for_distinct_with_arel_order + order = Object.new + def order.to_sql + "posts.created_at desc" + end + assert_equal "posts.id, posts.created_at AS alias_0", + @conn.columns_for_distinct("posts.id", [order]) + end + + def test_errors_for_bigint_fks_on_integer_pk_table + # table old_cars has primary key of integer + + error = assert_raises(ActiveRecord::MismatchedForeignKey) do + @conn.add_reference :engines, :old_car + @conn.add_foreign_key :engines, :old_cars + end + + assert_match "Column `old_car_id` on table `engines` has a type of `bigint(20)`", error.message + assert_not_nil error.cause + @conn.exec_query("ALTER TABLE engines DROP COLUMN old_car_id") + end + + private + + def with_example_table(definition = "id int auto_increment primary key, number int, data varchar(255)", &block) + super(@conn, "ex", definition, &block) + end +end |