/**
* @return null
*/
public function testIsUnsignedEnableUnsigned()
{
$this->assertFalse($this->type->isUnsigned());
$this->assertSame($this->type, $this->type->enableUnsigned());
$this->assertTrue($this->type->isUnsigned());
/* you disable unsigned by enabling signed
* no check for signed because when isUnsigned is false it means
* signed is enabled
*/
$this->assertSame($this->type, $this->type->enableSigned());
$this->assertFalse($this->type->isUnsigned());
}
