assertSame($postgresql, $expected); } public function test_it_adds_group_by() { $sql = 'SELECT COUNT(id), username FROM users'; $expected = 'SELECT COUNT(id) AS count0, username FROM users GROUP BY username'; $postgresql = pg4wp_rewrite($sql); $this->assertSame($postgresql, $expected); } protected function setUp(): void { global $wpdb; $wpdb = new class () { public $categories = "wp_categories"; public $comments = "wp_comments"; public $prefix = "wp_"; public $options = "wp_options"; }; } }