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redis_test.go
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redis_test.go
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// Copyright 2023 Tryvium Travels LTD
//
// Licensed 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.
package rediscacheadapters_test
import (
"encoding/json"
"errors"
"log"
"github.com/alicebob/miniredis/v2"
"github.com/gomodule/redigo/redis"
testutil "github.com/tryvium-travels/golang-cache-adapters/test"
)
var (
localRedisServer *miniredis.Miniredis // The local in-memory redis instance
testRedisPool *redis.Pool // The pool used in all the tests, except for the "InvalidPool" ones.
invalidRedisPool *redis.Pool // The pool used when in need to test invalid connection behaviours.
)
// startLocalRedisServer starts a local, in-memory redis instance for the tests.
func startLocalRedisServer() {
var err error
invalidRedisPool = &redis.Pool{
Dial: func() (redis.Conn, error) {
return nil, errors.New("TESTING INVALID DIAL FROM POOL")
},
}
localRedisServer, err = miniredis.Run()
if err != nil {
log.Fatalf("Cannot start local redis server: %s", err)
}
localRedisServer.Select(0)
testValueContent, err := json.Marshal(testutil.TestValue)
if err != nil {
log.Fatalf("Cannot set initial testKeyForGet on local redis: %s", err)
}
// set initial value for testKeyForGet
err = localRedisServer.Set(testutil.TestKeyForGet, string(testValueContent))
if err != nil {
log.Fatalf("Cannot set initial testKeyForGet on local redis: %s", err)
}
testRedisPool = &redis.Pool{
Dial: func() (redis.Conn, error) {
c, err := redis.Dial("tcp", localRedisServer.Addr())
if err != nil {
return nil, err
}
return c, nil
},
}
}
// stopLocalRedisServer stops the previously started,
// local, in-memory Redis instance.
func stopLocalRedisServer() {
localRedisServer.Close()
}