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require "cases/helper"
class PostgresqlHstoreTest < ActiveRecord::TestCase
class Hstore < ActiveRecord::Base
self.table_name = 'hstores'
end
def setup
@connection = ActiveRecord::Base.connection
begin
@connection.transaction do
@connection.create_table('hstores') do |t|
t.hstore 'tags'
end
end
rescue ActiveRecord::StatementInvalid
return skip "do not test on PG without hstore"
end
end
def teardown
@connection.execute 'drop table if exists hstores'
end
def test_column
column = Hstore.columns.find { |c| c.name == 'tags' }
assert column
assert_equal :hstore, column.type
end
def test_type_cast_hstore
column = Hstore.columns.find { |c| c.name == 'tags' }
assert column
data = "\"1\"=>\"2\""
hash = column.class.cast_hstore data
assert_equal({'1' => '2'}, hash)
assert_equal({'1' => '2'}, column.type_cast(data))
end
def test_select
@connection.execute "insert into hstores (tags) VALUES ('1=>2')"
x = Hstore.find :first
assert_equal({'1' => '2'}, x.tags)
end
def test_select_multikey
@connection.execute "insert into hstores (tags) VALUES ('1=>2,2=>3')"
x = Hstore.find :first
assert_equal({'1' => '2', '2' => '3'}, x.tags)
end
def test_create
assert_cycle('a' => 'b', '1' => '2')
end
def test_quotes
assert_cycle('a' => 'b"ar', '1"foo' => '2')
end
def test_whitespace
assert_cycle('a b' => 'b ar', '1"foo' => '2')
end
def test_backslash
assert_cycle('a\\b' => 'b\\ar', '1"foo' => '2')
end
def test_comma
assert_cycle('a, b' => 'bar', '1"foo' => '2')
end
def test_arrow
assert_cycle('a=>b' => 'bar', '1"foo' => '2')
end
private
def assert_cycle hash
x = Hstore.create!(:tags => hash)
x.reload
assert_equal(hash, x.tags)
# make sure updates work
x.tags = hash
x.save!
x.reload
assert_equal(hash, x.tags)
end
end
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