public function testSql() { $format = Dates::SQL_FORMAT; is(date($format, time()), Dates::sql()); is(date($format, time()), Dates::sql('')); is(date($format, time()), Dates::sql(0)); is(date($format, time()), Dates::sql(null)); is(date($format, time()), Dates::sql(false)); is(date($format, time()), Dates::sql('string')); is('2015-10-30 11:07:39', Dates::sql('1446203259')); is('2015-10-30 11:07:39', Dates::sql(1446203259)); is('2015-10-30 11:07:39', Dates::sql('2015-10-30 11:07:39')); is('2015-10-30 00:00:00', Dates::sql('2015-10-30')); }