mirror of https://github.com/tidwall/tile38.git
69 lines
1.6 KiB
Go
69 lines
1.6 KiB
Go
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// Copyright 2014 Gary Burd
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//
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// Licensed under the Apache License, Version 2.0 (the "License"): you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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// Package redistest contains utilities for writing Redigo tests.
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package redistest
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import (
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"errors"
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"time"
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"github.com/garyburd/redigo/redis"
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)
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type testConn struct {
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redis.Conn
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}
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func (t testConn) Close() error {
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_, err := t.Conn.Do("SELECT", "9")
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if err != nil {
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return nil
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}
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_, err = t.Conn.Do("FLUSHDB")
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if err != nil {
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return err
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}
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return t.Conn.Close()
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}
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// Dial dials the local Redis server and selects database 9. To prevent
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// stomping on real data, DialTestDB fails if database 9 contains data. The
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// returned connection flushes database 9 on close.
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func Dial() (redis.Conn, error) {
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c, err := redis.DialTimeout("tcp", ":6379", 0, 1*time.Second, 1*time.Second)
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if err != nil {
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return nil, err
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}
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_, err = c.Do("SELECT", "9")
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if err != nil {
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c.Close()
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return nil, err
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}
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n, err := redis.Int(c.Do("DBSIZE"))
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if err != nil {
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c.Close()
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return nil, err
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}
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if n != 0 {
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c.Close()
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return nil, errors.New("database #9 is not empty, test can not continue")
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}
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return testConn{c}, nil
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}
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