@Test
void delete() {

    cacheStore.put("key1", new TestCache(), Duration.ofMinutes(1), null);
    cacheStore.put("key2", new TestCache(), Duration.ofMinutes(1), null);
    assertThat(cacheStore.delete("key1", "key2")).isTrue();
    assertThat(cacheStore.caches).isEmpty();
    assertThat(cacheStore.delete("key1", "key2")).isFalse();
}