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# encoding: utf-8
require "cases/helper"
require 'active_record/base'
require 'active_record/connection_adapters/postgresql_adapter'
module PostgresqlUUIDHelper
def connection
@connection ||= ActiveRecord::Base.connection
end
def enable_uuid_ossp
unless connection.extension_enabled?('uuid-ossp')
connection.enable_extension 'uuid-ossp'
connection.commit_db_transaction
end
connection.reconnect!
end
def drop_table(name)
connection.execute "drop table if exists #{name}"
end
end
class PostgresqlUUIDTest < ActiveRecord::TestCase
include PostgresqlUUIDHelper
class UUIDType < ActiveRecord::Base
self.table_name = "uuid_data_type"
end
setup do
connection.create_table "uuid_data_type" do |t|
t.uuid 'guid'
end
end
teardown do
drop_table "uuid_data_type"
end
def test_change_column_default
@connection.add_column :uuid_data_type, :thingy, :uuid, null: false, default: "uuid_generate_v1()"
UUIDType.reset_column_information
column = UUIDType.columns_hash['thingy']
assert_equal "uuid_generate_v1()", column.default_function
@connection.change_column :uuid_data_type, :thingy, :uuid, null: false, default: "uuid_generate_v4()"
UUIDType.reset_column_information
column = UUIDType.columns_hash['thingy']
assert_equal "uuid_generate_v4()", column.default_function
ensure
UUIDType.reset_column_information
end
def test_data_type_of_uuid_types
column = UUIDType.columns_hash["guid"]
assert_equal :uuid, column.type
assert_equal "uuid", column.sql_type
assert_not column.number?
assert_not column.text?
assert_not column.binary?
assert_not column.array
end
def test_treat_blank_uuid_as_nil
UUIDType.create! guid: ''
assert_equal(nil, UUIDType.last.guid)
end
def test_uuid_formats
["A0EEBC99-9C0B-4EF8-BB6D-6BB9BD380A11",
"{a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11}",
"a0eebc999c0b4ef8bb6d6bb9bd380a11",
"a0ee-bc99-9c0b-4ef8-bb6d-6bb9-bd38-0a11",
"{a0eebc99-9c0b4ef8-bb6d6bb9-bd380a11}"].each do |valid_uuid|
UUIDType.create(guid: valid_uuid)
uuid = UUIDType.last
assert_equal "a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11", uuid.guid
end
end
end
class PostgresqlUUIDGenerationTest < ActiveRecord::TestCase
include PostgresqlUUIDHelper
class UUID < ActiveRecord::Base
self.table_name = 'pg_uuids'
end
setup do
enable_uuid_ossp
connection.create_table('pg_uuids', id: :uuid, default: 'uuid_generate_v1()') do |t|
t.string 'name'
t.uuid 'other_uuid', default: 'uuid_generate_v4()'
end
end
teardown do
drop_table "pg_uuids"
end
if ActiveRecord::Base.connection.supports_extensions?
def test_id_is_uuid
assert_equal :uuid, UUID.columns_hash['id'].type
assert UUID.primary_key
end
def test_id_has_a_default
u = UUID.create
assert_not_nil u.id
end
def test_auto_create_uuid
u = UUID.create
u.reload
assert_not_nil u.other_uuid
end
def test_pk_and_sequence_for_uuid_primary_key
pk, seq = connection.pk_and_sequence_for('pg_uuids')
assert_equal 'id', pk
assert_equal nil, seq
end
def test_schema_dumper_for_uuid_primary_key
schema = StringIO.new
ActiveRecord::SchemaDumper.dump(connection, schema)
assert_match(/\bcreate_table "pg_uuids", id: :uuid, default: "uuid_generate_v1\(\)"/, schema.string)
assert_match(/t\.uuid "other_uuid", default: "uuid_generate_v4\(\)"/, schema.string)
end
end
end
class PostgresqlUUIDTestNilDefault < ActiveRecord::TestCase
include PostgresqlUUIDHelper
setup do
enable_uuid_ossp
connection.create_table('pg_uuids', id: false) do |t|
t.primary_key :id, :uuid, default: nil
t.string 'name'
end
end
teardown do
drop_table "pg_uuids"
end
if ActiveRecord::Base.connection.supports_extensions?
def test_id_allows_default_override_via_nil
col_desc = connection.execute("SELECT pg_get_expr(d.adbin, d.adrelid) as default
FROM pg_attribute a
LEFT JOIN pg_attrdef d ON a.attrelid = d.adrelid AND a.attnum = d.adnum
WHERE a.attname='id' AND a.attrelid = 'pg_uuids'::regclass").first
assert_nil col_desc["default"]
end
end
end
class PostgresqlUUIDTestInverseOf < ActiveRecord::TestCase
include PostgresqlUUIDHelper
class UuidPost < ActiveRecord::Base
self.table_name = 'pg_uuid_posts'
has_many :uuid_comments, inverse_of: :uuid_post
end
class UuidComment < ActiveRecord::Base
self.table_name = 'pg_uuid_comments'
belongs_to :uuid_post
end
setup do
enable_uuid_ossp
connection.transaction do
connection.create_table('pg_uuid_posts', id: :uuid) do |t|
t.string 'title'
end
connection.create_table('pg_uuid_comments', id: :uuid) do |t|
t.uuid :uuid_post_id, default: 'uuid_generate_v4()'
t.string 'content'
end
end
end
teardown do
connection.transaction do
drop_table "pg_uuid_comments"
drop_table "pg_uuid_posts"
end
end
if ActiveRecord::Base.connection.supports_extensions?
def test_collection_association_with_uuid
post = UuidPost.create!
comment = post.uuid_comments.create!
assert post.uuid_comments.find(comment.id)
end
end
end
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