@Test
public void should() {

    assertThat(ResourceMethodMeta.combine(null, null)).isEqualTo("/");
    assertThat(ResourceMethodMeta.combine("", null)).isEqualTo("/");
    assertThat(ResourceMethodMeta.combine(null, "")).isEqualTo("/");
    assertThat(ResourceMethodMeta.combine("", "")).isEqualTo("/");
    assertThat(ResourceMethodMeta.combine("/abc", "/xyz")).isEqualTo("/abc/xyz");
    assertThat(ResourceMethodMeta.combine("/abc", "xyz")).isEqualTo("/abc/xyz");
    assertThat(ResourceMethodMeta.combine("abc", "/xyz")).isEqualTo("/abc/xyz");
    assertThat(ResourceMethodMeta.combine("abc", "xyz")).isEqualTo("/abc/xyz");
    assertThat(ResourceMethodMeta.combine("abc", null)).isEqualTo("/abc");
    assertThat(ResourceMethodMeta.combine(null, "xyz")).isEqualTo("/xyz");
    assertThat(ResourceMethodMeta.combine("abc", "")).isEqualTo("/abc");
    assertThat(ResourceMethodMeta.combine("", "xyz")).isEqualTo("/xyz");
    assertThat(ResourceMethodMeta.combine("/abc", "")).isEqualTo("/abc");
    assertThat(ResourceMethodMeta.combine("", "/xyz")).isEqualTo("/xyz");
}