diff options
Diffstat (limited to 'vendor/github.com/garyburd/redigo/redis/test_test.go')
-rw-r--r-- | vendor/github.com/garyburd/redigo/redis/test_test.go | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/vendor/github.com/garyburd/redigo/redis/test_test.go b/vendor/github.com/garyburd/redigo/redis/test_test.go new file mode 100644 index 000000000..7240fa1f3 --- /dev/null +++ b/vendor/github.com/garyburd/redigo/redis/test_test.go @@ -0,0 +1,177 @@ +// Copyright 2012 Gary Burd +// +// 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 redis + +import ( + "bufio" + "errors" + "flag" + "fmt" + "io" + "io/ioutil" + "os" + "os/exec" + "strconv" + "strings" + "sync" + "testing" + "time" +) + +func SetNowFunc(f func() time.Time) { + nowFunc = f +} + +var ( + ErrNegativeInt = errNegativeInt + + serverPath = flag.String("redis-server", "redis-server", "Path to redis server binary") + serverBasePort = flag.Int("redis-port", 16379, "Beginning of port range for test servers") + serverLogName = flag.String("redis-log", "", "Write Redis server logs to `filename`") + serverLog = ioutil.Discard + + defaultServerMu sync.Mutex + defaultServer *Server + defaultServerErr error +) + +type Server struct { + name string + cmd *exec.Cmd + done chan struct{} +} + +func NewServer(name string, args ...string) (*Server, error) { + s := &Server{ + name: name, + cmd: exec.Command(*serverPath, args...), + done: make(chan struct{}), + } + + r, err := s.cmd.StdoutPipe() + if err != nil { + return nil, err + } + + err = s.cmd.Start() + if err != nil { + return nil, err + } + + ready := make(chan error, 1) + go s.watch(r, ready) + + select { + case err = <-ready: + case <-time.After(time.Second * 10): + err = errors.New("timeout waiting for server to start") + } + + if err != nil { + s.Stop() + return nil, err + } + + return s, nil +} + +func (s *Server) watch(r io.Reader, ready chan error) { + fmt.Fprintf(serverLog, "%d START %s \n", s.cmd.Process.Pid, s.name) + var listening bool + var text string + scn := bufio.NewScanner(r) + for scn.Scan() { + text = scn.Text() + fmt.Fprintf(serverLog, "%s\n", text) + if !listening { + if strings.Contains(text, "The server is now ready to accept connections on port") { + listening = true + ready <- nil + } + } + } + if !listening { + ready <- fmt.Errorf("server exited: %s", text) + } + s.cmd.Wait() + fmt.Fprintf(serverLog, "%d STOP %s \n", s.cmd.Process.Pid, s.name) + close(s.done) +} + +func (s *Server) Stop() { + s.cmd.Process.Signal(os.Interrupt) + <-s.done +} + +// stopDefaultServer stops the server created by DialDefaultServer. +func stopDefaultServer() { + defaultServerMu.Lock() + defer defaultServerMu.Unlock() + if defaultServer != nil { + defaultServer.Stop() + defaultServer = nil + } +} + +// startDefaultServer starts the default server if not already running. +func startDefaultServer() error { + defaultServerMu.Lock() + defer defaultServerMu.Unlock() + if defaultServer != nil || defaultServerErr != nil { + return defaultServerErr + } + defaultServer, defaultServerErr = NewServer( + "default", + "--port", strconv.Itoa(*serverBasePort), + "--save", "", + "--appendonly", "no") + return defaultServerErr +} + +// DialDefaultServer starts the test server if not already started and dials a +// connection to the server. +func DialDefaultServer() (Conn, error) { + if err := startDefaultServer(); err != nil { + return nil, err + } + c, err := Dial("tcp", fmt.Sprintf(":%d", *serverBasePort), DialReadTimeout(1*time.Second), DialWriteTimeout(1*time.Second)) + if err != nil { + return nil, err + } + c.Do("FLUSHDB") + return c, nil +} + +func TestMain(m *testing.M) { + os.Exit(func() int { + flag.Parse() + + var f *os.File + if *serverLogName != "" { + var err error + f, err = os.OpenFile(*serverLogName, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0600) + if err != nil { + fmt.Fprintf(os.Stderr, "Error opening redis-log: %v\n", err) + return 1 + } + defer f.Close() + serverLog = f + } + + defer stopDefaultServer() + + return m.Run() + }()) +} |