    public function testResolvesUris($base, $rel, $expected)
    {
        $uri = new Uri($base);
        $actual = Uri::resolve($uri, $rel);
        $this->assertSame($expected, (string) $actual);
    }
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.