/** * Render Columns * @param SQL\Columns|null $columns * @return string|null */ public static function render($columns) { return $columns ? Columns::renderItem($columns) : null; }
/** * @dataProvider dataRenderItem * @covers Harp\Query\Compiler\Columns::renderItem */ public function testRenderItem($values, $expected) { $values = new SQL\Columns($values); $this->assertEquals($expected, Compiler\Columns::renderItem($values)); }