public function testHasBody()
{
$msg = $this->getMockForAbstractClass('Amp\\Artax\\Message');
$this->assertFalse($msg->hasBody());
$msg->setBody('test');
$this->assertTrue($msg->hasBody());
$msg->setBody('0');
$this->assertTrue($msg->hasBody());
$msg->setBody('');
$this->assertFalse($msg->hasBody());
}