@Test
void url() {

    assertThat(manager.url("/image/image2.png")).isEqualTo("//cdn/image/image2.png");
    assertThat(manager.url("/image/image3.png")).isEqualTo("//cdn/image/image3.png");
    assertThat(manager.url("/image/image3.png?param=value")).isEqualTo("//cdn/image/image3.png?param=value");
}