Neos\Flow\Tests\Unit\Http\HeadersTest::headerFieldsCanBeReplaced PHP Method

    public function headerFieldsCanBeReplaced()
    {
        $headers = new Headers();
        $headers->set('Host', 'myhost.com');
        $headers->set('Host', 'yourhost.com');
        $this->assertSame('yourhost.com', $headers->get('Host'));
    }