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minio/vendor/gopkg.in/mgo.v2/suite_test.go

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// mgo - MongoDB driver for Go
//
// Copyright (c) 2010-2012 - Gustavo Niemeyer <gustavo@niemeyer.net>
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package mgo_test
import (
"errors"
"flag"
"fmt"
"net"
"os/exec"
"runtime"
"strconv"
"testing"
"time"
. "gopkg.in/check.v1"
"gopkg.in/mgo.v2"
"gopkg.in/mgo.v2/bson"
)
var fast = flag.Bool("fast", false, "Skip slow tests")
type M bson.M
type cLogger C
func (c *cLogger) Output(calldepth int, s string) error {
ns := time.Now().UnixNano()
t := float64(ns%100e9) / 1e9
((*C)(c)).Logf("[LOG] %.05f %s", t, s)
return nil
}
func TestAll(t *testing.T) {
TestingT(t)
}
type S struct {
session *mgo.Session
stopped bool
build mgo.BuildInfo
frozen []string
}
func (s *S) versionAtLeast(v ...int) (result bool) {
for i := range v {
if i == len(s.build.VersionArray) {
return false
}
if s.build.VersionArray[i] != v[i] {
return s.build.VersionArray[i] >= v[i]
}
}
return true
}
var _ = Suite(&S{})
func (s *S) SetUpSuite(c *C) {
mgo.SetDebug(true)
mgo.SetStats(true)
s.StartAll()
session, err := mgo.Dial("localhost:40001")
c.Assert(err, IsNil)
s.build, err = session.BuildInfo()
c.Check(err, IsNil)
session.Close()
}
func (s *S) SetUpTest(c *C) {
err := run("mongo --nodb testdb/dropall.js")
if err != nil {
panic(err.Error())
}
mgo.SetLogger((*cLogger)(c))
mgo.ResetStats()
}
func (s *S) TearDownTest(c *C) {
if s.stopped {
s.Stop(":40201")
s.Stop(":40202")
s.Stop(":40203")
s.StartAll()
}
for _, host := range s.frozen {
if host != "" {
s.Thaw(host)
}
}
var stats mgo.Stats
for i := 0; ; i++ {
stats = mgo.GetStats()
if stats.SocketsInUse == 0 && stats.SocketsAlive == 0 {
break
}
if i == 20 {
c.Fatal("Test left sockets in a dirty state")
}
c.Logf("Waiting for sockets to die: %d in use, %d alive", stats.SocketsInUse, stats.SocketsAlive)
time.Sleep(500 * time.Millisecond)
}
for i := 0; ; i++ {
stats = mgo.GetStats()
if stats.Clusters == 0 {
break
}
if i == 60 {
c.Fatal("Test left clusters alive")
}
c.Logf("Waiting for clusters to die: %d alive", stats.Clusters)
time.Sleep(1 * time.Second)
}
}
func (s *S) Stop(host string) {
// Give a moment for slaves to sync and avoid getting rollback issues.
panicOnWindows()
time.Sleep(2 * time.Second)
err := run("cd _testdb && supervisorctl stop " + supvName(host))
if err != nil {
panic(err)
}
s.stopped = true
}
func (s *S) pid(host string) int {
output, err := exec.Command("lsof", "-iTCP:"+hostPort(host), "-sTCP:LISTEN", "-Fp").CombinedOutput()
if err != nil {
panic(err)
}
pidstr := string(output[1 : len(output)-1])
pid, err := strconv.Atoi(pidstr)
if err != nil {
panic("cannot convert pid to int: " + pidstr)
}
return pid
}
func (s *S) Freeze(host string) {
err := stop(s.pid(host))
if err != nil {
panic(err)
}
s.frozen = append(s.frozen, host)
}
func (s *S) Thaw(host string) {
err := cont(s.pid(host))
if err != nil {
panic(err)
}
for i, frozen := range s.frozen {
if frozen == host {
s.frozen[i] = ""
}
}
}
func (s *S) StartAll() {
if s.stopped {
// Restart any stopped nodes.
run("cd _testdb && supervisorctl start all")
err := run("cd testdb && mongo --nodb wait.js")
if err != nil {
panic(err)
}
s.stopped = false
}
}
func run(command string) error {
var output []byte
var err error
if runtime.GOOS == "windows" {
output, err = exec.Command("cmd", "/C", command).CombinedOutput()
} else {
output, err = exec.Command("/bin/sh", "-c", command).CombinedOutput()
}
if err != nil {
msg := fmt.Sprintf("Failed to execute: %s: %s\n%s", command, err.Error(), string(output))
return errors.New(msg)
}
return nil
}
var supvNames = map[string]string{
"40001": "db1",
"40002": "db2",
"40011": "rs1a",
"40012": "rs1b",
"40013": "rs1c",
"40021": "rs2a",
"40022": "rs2b",
"40023": "rs2c",
"40031": "rs3a",
"40032": "rs3b",
"40033": "rs3c",
"40041": "rs4a",
"40101": "cfg1",
"40102": "cfg2",
"40103": "cfg3",
"40201": "s1",
"40202": "s2",
"40203": "s3",
}
// supvName returns the supervisord name for the given host address.
func supvName(host string) string {
host, port, err := net.SplitHostPort(host)
if err != nil {
panic(err)
}
name, ok := supvNames[port]
if !ok {
panic("Unknown host: " + host)
}
return name
}
func hostPort(host string) string {
_, port, err := net.SplitHostPort(host)
if err != nil {
panic(err)
}
return port
}
func panicOnWindows() {
if runtime.GOOS == "windows" {
panic("the test suite is not yet fully supported on Windows")
}
}