# # Licensed to the Apache Software Foundation (ASF) under one or more # contributor license agreements. See the NOTICE file distributed with # this work for additional information regarding copyright ownership. # The ASF licenses this file to You under the Apache License, Version 2.0 # (the "License"); you may not use this file except in compliance with # the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # use t::APISIX 'no_plan'; repeat_each(1); no_long_string(); no_root_location(); log_level("info"); run_tests; __DATA__ === TEST 1: sanity --- config location /t { content_by_lua_block { local core = require("apisix.core") local idx = 0 local function create_obj() idx = idx + 1 return {idx = idx} end local obj = core.lrucache.global("key", nil, create_obj) ngx.say("obj: ", require("toolkit.json").encode(obj)) obj = core.lrucache.global("key", nil, create_obj) ngx.say("obj: ", require("toolkit.json").encode(obj)) obj = core.lrucache.global("key", "1", create_obj) ngx.say("obj: ", require("toolkit.json").encode(obj)) } } --- request GET /t --- response_body obj: {"idx":1} obj: {"idx":1} obj: {"idx":2} --- no_error_log [error] === TEST 2: new --- config location /t { content_by_lua_block { local core = require("apisix.core") local idx = 0 local function create_obj() idx = idx + 1 return {idx = idx} end local lru_get = core.lrucache.new() local obj = lru_get("key", nil, create_obj) ngx.say("obj: ", require("toolkit.json").encode(obj)) obj = lru_get("key", nil, create_obj) ngx.say("obj: ", require("toolkit.json").encode(obj)) obj = lru_get("key", "1", create_obj) ngx.say("obj: ", require("toolkit.json").encode(obj)) obj = lru_get("key", "1", create_obj) ngx.say("obj: ", require("toolkit.json").encode(obj)) obj = lru_get("key-different", "1", create_obj) ngx.say("obj: ", require("toolkit.json").encode(obj)) } } --- request GET /t --- response_body obj: {"idx":1} obj: {"idx":1} obj: {"idx":2} obj: {"idx":2} obj: {"idx":3} --- no_error_log [error] === TEST 3: cache the non-table object, eg: number or string --- config location /t { content_by_lua_block { local core = require("apisix.core") local idx = 0 local function create_num() idx = idx + 1 return idx end local obj = core.lrucache.global("key", nil, create_num) ngx.say("obj: ", require("toolkit.json").encode(obj)) obj = core.lrucache.global("key", nil, create_num) ngx.say("obj: ", require("toolkit.json").encode(obj)) obj = core.lrucache.global("key", "1", create_num) ngx.say("obj: ", require("toolkit.json").encode(obj)) } } --- request GET /t --- response_body obj: 1 obj: 1 obj: 2 --- no_error_log [error] === TEST 4: sanity --- config location /t { content_by_lua_block { local core = require("apisix.core") local function server_release(self) ngx.say("release: ", require("toolkit.json").encode(self)) end local lrucache_server_picker = core.lrucache.new({ ttl = 300, count = 256, release = server_release, }) local t1 = lrucache_server_picker("nnn", "t1", function () return {name = "aaa"} end) ngx.say("obj: ", require("toolkit.json").encode(t1)) local t2 = lrucache_server_picker("nnn", "t2", function () return {name = "bbb"} end) ngx.say("obj: ", require("toolkit.json").encode(t2)) } } --- request GET /t --- response_body obj: {"name":"aaa"} release: {"name":"aaa"} obj: {"name":"bbb"} --- no_error_log [error] === TEST 5: invalid_stale = true --- config location /t { content_by_lua_block { local core = require("apisix.core") local idx = 0 local function create_obj() idx = idx + 1 return {idx = idx} end local lru_get = core.lrucache.new({ ttl = 0.1, count = 256, invalid_stale = true, }) local obj = lru_get("key", "ver", create_obj) ngx.say("obj: ", require("toolkit.json").encode(obj)) local obj = lru_get("key", "ver", create_obj) ngx.say("obj: ", require("toolkit.json").encode(obj)) ngx.sleep(0.15) local obj = lru_get("key", "ver", create_obj) ngx.say("obj: ", require("toolkit.json").encode(obj)) } } --- request GET /t --- response_body obj: {"idx":1} obj: {"idx":1} obj: {"idx":2} --- no_error_log [error] === TEST 6: when creating cached objects, use resty-lock to avoid repeated creation. --- config location /t { content_by_lua_block { local core = require("apisix.core") local idx = 0 local function create_obj() idx = idx + 1 ngx.sleep(0.1) return {idx = idx} end local lru_get = core.lrucache.new({ ttl = 1, count = 256, invalid_stale = true, serial_creating = true, }) local function f() local obj = lru_get("key", "ver", create_obj) ngx.say("obj: ", require("toolkit.json").encode(obj)) end ngx.thread.spawn(f) ngx.thread.spawn(f) ngx.sleep(0.3) } } --- request GET /t --- response_body obj: {"idx":1} obj: {"idx":1} --- no_error_log [error] === TEST 7: different `key` and `ver`, cached same one table --- config location /t { content_by_lua_block { local core = require("apisix.core") local item = {} local idx = 0 local function create_obj() idx = idx + 1 ngx.say("create obj ", idx, " time") return item end local lru_get = core.lrucache.new({ ttl = 10, count = 256 }) local obj = lru_get("key", "ver", create_obj) ngx.say("fetch obj: ", obj == item) obj = lru_get("key2", "ver2", create_obj) ngx.say("fetch obj: ", obj == item) obj = lru_get("key", "ver", create_obj) ngx.say("fetch obj: ", obj == item) } } --- request GET /t --- response_body create obj 1 time fetch obj: true create obj 2 time fetch obj: true fetch obj: true --- no_error_log [error]