Add test

Author: ianton-ru

tests/queries/0_stateless/03643_system_drop_filesystem_cache_on_cluster.reference

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+# Tags: no-fasttest, no-parallel, no-object-storage, no-random-settings
+
+# set -x
+
+CUR_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+# shellcheck source=../shell_config.sh
+. "$CUR_DIR"/../shell_config.sh
+
+
+disk_name="${CLICKHOUSE_TEST_UNIQUE_NAME}"
+$CLICKHOUSE_CLIENT -m --query """
+DROP TABLE IF EXISTS test;
+CREATE TABLE test (a Int32, b String)
+ENGINE = MergeTree() ORDER BY tuple()
+SETTINGS disk = disk(name = '$disk_name', type = cache, max_size = '100Ki', path = ${CLICKHOUSE_TEST_UNIQUE_NAME}, disk = s3_disk);
+
+INSERT INTO test SELECT 1, 'test';
+"""
+
+$CLICKHOUSE_CLIENT --query """
+SYSTEM SYNC FILESYSTEM CACHE '$disk_name' ON CLUSTER 'test_shard_localhost';
+"""
+
+$CLICKHOUSE_CLIENT --query """
+SYSTEM DROP FILESYSTEM CACHE '$disk_name' ON CLUSTER 'test_shard_localhost';
+"""
+
+$CLICKHOUSE_CLIENT --query """
+DROP TABLE IF EXISTS test;
+"""