    public function testDefaultConstructor()
    {
        $r = new Response();
        $this->assertSame(200, $r->getStatusCode());
        $this->assertSame('1.1', $r->getProtocolVersion());
        $this->assertSame('OK', $r->getReasonPhrase());
        $this->assertSame([], $r->getHeaders());
        $this->assertInstanceOf('Psr\Http\Message\StreamInterface', $r->getBody());
        $this->assertSame('', (string) $r->getBody());
    }
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.