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# encoding: utf-8
require "cases/helper"
require 'active_record/base'
require 'active_record/connection_adapters/postgresql_adapter'
class PostgresqlUUIDTest < ActiveRecord::TestCase
class UUID < ActiveRecord::Base
self.table_name = 'pg_uuids'
end
def setup
@connection = ActiveRecord::Base.connection
unless @connection.supports_extensions?
return skip "do not test on PG without uuid-ossp"
end
unless @connection.extension_enabled?('uuid-ossp')
@connection.enable_extension 'uuid-ossp'
@connection.commit_db_transaction
end
@connection.reconnect!
@connection.transaction do
@connection.create_table('pg_uuids', id: :uuid) do |t|
t.string 'name'
t.uuid 'other_uuid', default: 'uuid_generate_v4()'
end
end
end
def teardown
@connection.execute 'drop table if exists pg_uuids'
end
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\b/, schema.string)
end
end
class PostgresqlUUIDTestNilDefault < ActiveRecord::TestCase
class UUID < ActiveRecord::Base
self.table_name = 'pg_uuids'
end
def setup
@connection = ActiveRecord::Base.connection
@connection.reconnect!
@connection.transaction do
@connection.create_table('pg_uuids', id: false) do |t|
t.primary_key :id, :uuid, default: nil
t.string 'name'
end
end
end
def teardown
@connection.execute 'drop table if exists pg_uuids'
end
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
class PostgresqlUUIDTestInverseOf < ActiveRecord::TestCase
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
def setup
@connection = ActiveRecord::Base.connection
@connection.reconnect!
@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
def teardown
@connection.transaction do
@connection.execute 'drop table if exists pg_uuid_comments'
@connection.execute 'drop table if exists pg_uuid_posts'
end
end
def test_collection_association_with_uuid
post = UuidPost.create!
comment = post.uuid_comments.create!
assert post.uuid_comments.find(comment.id)
end
end
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