    public function testSchemeIsNormalizedToLowercase()
    {
        $uri = new Uri('HTTP://example.com');

        $this->assertSame('http', $uri->getScheme());
        $this->assertSame('http://example.com', (string) $uri);

        $uri = (new Uri('//example.com'))->withScheme('HTTP');

        $this->assertSame('http', $uri->getScheme());
        $this->assertSame('http://example.com', (string) $uri);
    }
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.