@Test
    @Order(3)
    public void removeByKeyTest() {
        final UpstreamCacheManager upstreamCacheManager = UpstreamCacheManager.getInstance();
        upstreamCacheManager.removeByKey(SELECTOR_ID);
    }
The type UpstreamCacheManager check task test.
shenyu-loadbalancer/src/test/java/org/apache/shenyu/loadbalancer/cache/UpstreamCacheManagerTest.java