    public function testGetRequestFormat()
    {
        $request = new Request();
        $this->assertEquals('html', $request->getRequestFormat());

        $request = new Request();
        $this->assertNull($request->getRequestFormat(null));

        $request = new Request();
        $this->assertNull($request->setRequestFormat('foo'));
        $this->assertEquals('foo', $request->getRequestFormat(null));

        $request = new Request(array('_format' => 'foo'));
        $this->assertEquals('html', $request->getRequestFormat());
    }
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.