    public function testRemoveNonExistingQueryValue()
    {
        $uri = new Uri();
        $uri = Uri::withQueryValue($uri, 'a', 'b');
        $uri = Uri::withoutQueryValue($uri, 'c');
        $this->assertSame('a=b', $uri->getQuery());
    }
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.