Fix godeps

Signed-off-by: Olivier Gambier <olivier@docker.com>
This commit is contained in:
Olivier Gambier 2016-03-21 12:08:47 -07:00
parent 77e69b9cf3
commit 53e3c1d7b2
806 changed files with 431 additions and 1075412 deletions

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@ -1,65 +0,0 @@
// Copyright 2014 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 redistest contains utilities for writing Redigo tests.
package redistest
import (
"errors"
"time"
"github.com/garyburd/redigo/redis"
)
type testConn struct {
redis.Conn
}
func (t testConn) Close() error {
_, err := t.Conn.Do("SELECT", "9")
if err != nil {
return nil
}
_, err = t.Conn.Do("FLUSHDB")
if err != nil {
return err
}
return t.Conn.Close()
}
// Dial dials the local Redis server and selects database 9. To prevent
// stomping on real data, DialTestDB fails if database 9 contains data. The
// returned connection flushes database 9 on close.
func Dial() (redis.Conn, error) {
c, err := redis.DialTimeout("tcp", ":6379", 0, 1*time.Second, 1*time.Second)
if err != nil {
return nil, err
}
_, err = c.Do("SELECT", "9")
if err != nil {
return nil, err
}
n, err := redis.Int(c.Do("DBSIZE"))
if err != nil {
return nil, err
}
if n != 0 {
return nil, errors.New("database #9 is not empty, test can not continue")
}
return testConn{c}, nil
}

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// 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_test
import (
"bufio"
"bytes"
"math"
"net"
"reflect"
"strings"
"testing"
"time"
"github.com/garyburd/redigo/internal/redistest"
"github.com/garyburd/redigo/redis"
)
var writeTests = []struct {
args []interface{}
expected string
}{
{
[]interface{}{"SET", "key", "value"},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$5\r\nvalue\r\n",
},
{
[]interface{}{"SET", "key", "value"},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$5\r\nvalue\r\n",
},
{
[]interface{}{"SET", "key", byte(100)},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$3\r\n100\r\n",
},
{
[]interface{}{"SET", "key", 100},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$3\r\n100\r\n",
},
{
[]interface{}{"SET", "key", int64(math.MinInt64)},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$20\r\n-9223372036854775808\r\n",
},
{
[]interface{}{"SET", "key", float64(1349673917.939762)},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$21\r\n1.349673917939762e+09\r\n",
},
{
[]interface{}{"SET", "key", ""},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$0\r\n\r\n",
},
{
[]interface{}{"SET", "key", nil},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$0\r\n\r\n",
},
{
[]interface{}{"ECHO", true, false},
"*3\r\n$4\r\nECHO\r\n$1\r\n1\r\n$1\r\n0\r\n",
},
}
func TestWrite(t *testing.T) {
for _, tt := range writeTests {
var buf bytes.Buffer
rw := bufio.ReadWriter{Writer: bufio.NewWriter(&buf)}
c := redis.NewConnBufio(rw)
err := c.Send(tt.args[0].(string), tt.args[1:]...)
if err != nil {
t.Errorf("Send(%v) returned error %v", tt.args, err)
continue
}
rw.Flush()
actual := buf.String()
if actual != tt.expected {
t.Errorf("Send(%v) = %q, want %q", tt.args, actual, tt.expected)
}
}
}
var errorSentinel = &struct{}{}
var readTests = []struct {
reply string
expected interface{}
}{
{
"+OK\r\n",
"OK",
},
{
"+PONG\r\n",
"PONG",
},
{
"@OK\r\n",
errorSentinel,
},
{
"$6\r\nfoobar\r\n",
[]byte("foobar"),
},
{
"$-1\r\n",
nil,
},
{
":1\r\n",
int64(1),
},
{
":-2\r\n",
int64(-2),
},
{
"*0\r\n",
[]interface{}{},
},
{
"*-1\r\n",
nil,
},
{
"*4\r\n$3\r\nfoo\r\n$3\r\nbar\r\n$5\r\nHello\r\n$5\r\nWorld\r\n",
[]interface{}{[]byte("foo"), []byte("bar"), []byte("Hello"), []byte("World")},
},
{
"*3\r\n$3\r\nfoo\r\n$-1\r\n$3\r\nbar\r\n",
[]interface{}{[]byte("foo"), nil, []byte("bar")},
},
{
// "x" is not a valid length
"$x\r\nfoobar\r\n",
errorSentinel,
},
{
// -2 is not a valid length
"$-2\r\n",
errorSentinel,
},
{
// "x" is not a valid integer
":x\r\n",
errorSentinel,
},
{
// missing \r\n following value
"$6\r\nfoobar",
errorSentinel,
},
{
// short value
"$6\r\nxx",
errorSentinel,
},
{
// long value
"$6\r\nfoobarx\r\n",
errorSentinel,
},
}
func TestRead(t *testing.T) {
for _, tt := range readTests {
rw := bufio.ReadWriter{
Reader: bufio.NewReader(strings.NewReader(tt.reply)),
Writer: bufio.NewWriter(nil), // writer need to support Flush
}
c := redis.NewConnBufio(rw)
actual, err := c.Receive()
if tt.expected == errorSentinel {
if err == nil {
t.Errorf("Receive(%q) did not return expected error", tt.reply)
}
} else {
if err != nil {
t.Errorf("Receive(%q) returned error %v", tt.reply, err)
continue
}
if !reflect.DeepEqual(actual, tt.expected) {
t.Errorf("Receive(%q) = %v, want %v", tt.reply, actual, tt.expected)
}
}
}
}
var testCommands = []struct {
args []interface{}
expected interface{}
}{
{
[]interface{}{"PING"},
"PONG",
},
{
[]interface{}{"SET", "foo", "bar"},
"OK",
},
{
[]interface{}{"GET", "foo"},
[]byte("bar"),
},
{
[]interface{}{"GET", "nokey"},
nil,
},
{
[]interface{}{"MGET", "nokey", "foo"},
[]interface{}{nil, []byte("bar")},
},
{
[]interface{}{"INCR", "mycounter"},
int64(1),
},
{
[]interface{}{"LPUSH", "mylist", "foo"},
int64(1),
},
{
[]interface{}{"LPUSH", "mylist", "bar"},
int64(2),
},
{
[]interface{}{"LRANGE", "mylist", 0, -1},
[]interface{}{[]byte("bar"), []byte("foo")},
},
{
[]interface{}{"MULTI"},
"OK",
},
{
[]interface{}{"LRANGE", "mylist", 0, -1},
"QUEUED",
},
{
[]interface{}{"PING"},
"QUEUED",
},
{
[]interface{}{"EXEC"},
[]interface{}{
[]interface{}{[]byte("bar"), []byte("foo")},
"PONG",
},
},
}
func TestDoCommands(t *testing.T) {
c, err := redistest.Dial()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer c.Close()
for _, cmd := range testCommands {
actual, err := c.Do(cmd.args[0].(string), cmd.args[1:]...)
if err != nil {
t.Errorf("Do(%v) returned error %v", cmd.args, err)
continue
}
if !reflect.DeepEqual(actual, cmd.expected) {
t.Errorf("Do(%v) = %v, want %v", cmd.args, actual, cmd.expected)
}
}
}
func TestPipelineCommands(t *testing.T) {
c, err := redistest.Dial()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer c.Close()
for _, cmd := range testCommands {
if err := c.Send(cmd.args[0].(string), cmd.args[1:]...); err != nil {
t.Fatalf("Send(%v) returned error %v", cmd.args, err)
}
}
if err := c.Flush(); err != nil {
t.Errorf("Flush() returned error %v", err)
}
for _, cmd := range testCommands {
actual, err := c.Receive()
if err != nil {
t.Fatalf("Receive(%v) returned error %v", cmd.args, err)
}
if !reflect.DeepEqual(actual, cmd.expected) {
t.Errorf("Receive(%v) = %v, want %v", cmd.args, actual, cmd.expected)
}
}
}
func TestBlankCommmand(t *testing.T) {
c, err := redistest.Dial()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer c.Close()
for _, cmd := range testCommands {
if err := c.Send(cmd.args[0].(string), cmd.args[1:]...); err != nil {
t.Fatalf("Send(%v) returned error %v", cmd.args, err)
}
}
reply, err := redis.Values(c.Do(""))
if err != nil {
t.Fatalf("Do() returned error %v", err)
}
if len(reply) != len(testCommands) {
t.Fatalf("len(reply)=%d, want %d", len(reply), len(testCommands))
}
for i, cmd := range testCommands {
actual := reply[i]
if !reflect.DeepEqual(actual, cmd.expected) {
t.Errorf("Receive(%v) = %v, want %v", cmd.args, actual, cmd.expected)
}
}
}
func TestRecvBeforeSend(t *testing.T) {
c, err := redistest.Dial()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer c.Close()
done := make(chan struct{})
go func() {
c.Receive()
close(done)
}()
time.Sleep(time.Millisecond)
c.Send("PING")
c.Flush()
<-done
_, err = c.Do("")
if err != nil {
t.Fatalf("error=%v", err)
}
}
func TestError(t *testing.T) {
c, err := redistest.Dial()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer c.Close()
c.Do("SET", "key", "val")
_, err = c.Do("HSET", "key", "fld", "val")
if err == nil {
t.Errorf("Expected err for HSET on string key.")
}
if c.Err() != nil {
t.Errorf("Conn has Err()=%v, expect nil", c.Err())
}
_, err = c.Do("SET", "key", "val")
if err != nil {
t.Errorf("Do(SET, key, val) returned error %v, expected nil.", err)
}
}
func TestReadDeadline(t *testing.T) {
l, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatalf("net.Listen returned %v", err)
}
defer l.Close()
go func() {
for {
c, err := l.Accept()
if err != nil {
return
}
go func() {
time.Sleep(time.Second)
c.Write([]byte("+OK\r\n"))
c.Close()
}()
}
}()
c1, err := redis.DialTimeout(l.Addr().Network(), l.Addr().String(), 0, time.Millisecond, 0)
if err != nil {
t.Fatalf("redis.Dial returned %v", err)
}
defer c1.Close()
_, err = c1.Do("PING")
if err == nil {
t.Fatalf("c1.Do() returned nil, expect error")
}
if c1.Err() == nil {
t.Fatalf("c1.Err() = nil, expect error")
}
c2, err := redis.DialTimeout(l.Addr().Network(), l.Addr().String(), 0, time.Millisecond, 0)
if err != nil {
t.Fatalf("redis.Dial returned %v", err)
}
defer c2.Close()
c2.Send("PING")
c2.Flush()
_, err = c2.Receive()
if err == nil {
t.Fatalf("c2.Receive() returned nil, expect error")
}
if c2.Err() == nil {
t.Fatalf("c2.Err() = nil, expect error")
}
}
// Connect to local instance of Redis running on the default port.
func ExampleDial(x int) {
c, err := redis.Dial("tcp", ":6379")
if err != nil {
// handle error
}
defer c.Close()
}
// TextExecError tests handling of errors in a transaction. See
// http://redis.io/topics/transactions for information on how Redis handles
// errors in a transaction.
func TestExecError(t *testing.T) {
c, err := redistest.Dial()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer c.Close()
// Execute commands that fail before EXEC is called.
c.Do("ZADD", "k0", 0, 0)
c.Send("MULTI")
c.Send("NOTACOMMAND", "k0", 0, 0)
c.Send("ZINCRBY", "k0", 0, 0)
v, err := c.Do("EXEC")
if err == nil {
t.Fatalf("EXEC returned values %v, expected error", v)
}
// Execute commands that fail after EXEC is called. The first command
// returns an error.
c.Do("ZADD", "k1", 0, 0)
c.Send("MULTI")
c.Send("HSET", "k1", 0, 0)
c.Send("ZINCRBY", "k1", 0, 0)
v, err = c.Do("EXEC")
if err != nil {
t.Fatalf("EXEC returned error %v", err)
}
vs, err := redis.Values(v, nil)
if err != nil {
t.Fatalf("Values(v) returned error %v", err)
}
if len(vs) != 2 {
t.Fatalf("len(vs) == %d, want 2", len(vs))
}
if _, ok := vs[0].(error); !ok {
t.Fatalf("first result is type %T, expected error", vs[0])
}
if _, ok := vs[1].([]byte); !ok {
t.Fatalf("second result is type %T, expected []byte", vs[2])
}
// Execute commands that fail after EXEC is called. The second command
// returns an error.
c.Do("ZADD", "k2", 0, 0)
c.Send("MULTI")
c.Send("ZINCRBY", "k2", 0, 0)
c.Send("HSET", "k2", 0, 0)
v, err = c.Do("EXEC")
if err != nil {
t.Fatalf("EXEC returned error %v", err)
}
vs, err = redis.Values(v, nil)
if err != nil {
t.Fatalf("Values(v) returned error %v", err)
}
if len(vs) != 2 {
t.Fatalf("len(vs) == %d, want 2", len(vs))
}
if _, ok := vs[0].([]byte); !ok {
t.Fatalf("first result is type %T, expected []byte", vs[0])
}
if _, ok := vs[1].(error); !ok {
t.Fatalf("second result is type %T, expected error", vs[2])
}
}
func BenchmarkDoEmpty(b *testing.B) {
b.StopTimer()
c, err := redistest.Dial()
if err != nil {
b.Fatal(err)
}
defer c.Close()
b.StartTimer()
for i := 0; i < b.N; i++ {
if _, err := c.Do(""); err != nil {
b.Fatal(err)
}
}
}
func BenchmarkDoPing(b *testing.B) {
b.StopTimer()
c, err := redistest.Dial()
if err != nil {
b.Fatal(err)
}
defer c.Close()
b.StartTimer()
for i := 0; i < b.N; i++ {
if _, err := c.Do("PING"); err != nil {
b.Fatal(err)
}
}
}

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// Copyright 2011 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_test
import (
"errors"
"io"
"reflect"
"sync"
"testing"
"time"
"github.com/garyburd/redigo/internal/redistest"
"github.com/garyburd/redigo/redis"
)
type poolTestConn struct {
d *poolDialer
err error
redis.Conn
}
func (c *poolTestConn) Close() error { c.d.open -= 1; return nil }
func (c *poolTestConn) Err() error { return c.err }
func (c *poolTestConn) Do(commandName string, args ...interface{}) (reply interface{}, err error) {
if commandName == "ERR" {
c.err = args[0].(error)
commandName = "PING"
}
if commandName != "" {
c.d.commands = append(c.d.commands, commandName)
}
return c.Conn.Do(commandName, args...)
}
func (c *poolTestConn) Send(commandName string, args ...interface{}) error {
c.d.commands = append(c.d.commands, commandName)
return c.Conn.Send(commandName, args...)
}
type poolDialer struct {
t *testing.T
dialed int
open int
commands []string
dialErr error
}
func (d *poolDialer) dial() (redis.Conn, error) {
d.dialed += 1
if d.dialErr != nil {
return nil, d.dialErr
}
c, err := redistest.Dial()
if err != nil {
return nil, err
}
d.open += 1
return &poolTestConn{d: d, Conn: c}, nil
}
func (d *poolDialer) check(message string, p *redis.Pool, dialed, open int) {
if d.dialed != dialed {
d.t.Errorf("%s: dialed=%d, want %d", message, d.dialed, dialed)
}
if d.open != open {
d.t.Errorf("%s: open=%d, want %d", message, d.open, open)
}
if active := p.ActiveCount(); active != open {
d.t.Errorf("%s: active=%d, want %d", message, active, open)
}
}
func TestPoolReuse(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
Dial: d.dial,
}
for i := 0; i < 10; i++ {
c1 := p.Get()
c1.Do("PING")
c2 := p.Get()
c2.Do("PING")
c1.Close()
c2.Close()
}
d.check("before close", p, 2, 2)
p.Close()
d.check("after close", p, 2, 0)
}
func TestPoolMaxIdle(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
Dial: d.dial,
}
for i := 0; i < 10; i++ {
c1 := p.Get()
c1.Do("PING")
c2 := p.Get()
c2.Do("PING")
c3 := p.Get()
c3.Do("PING")
c1.Close()
c2.Close()
c3.Close()
}
d.check("before close", p, 12, 2)
p.Close()
d.check("after close", p, 12, 0)
}
func TestPoolError(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
Dial: d.dial,
}
c := p.Get()
c.Do("ERR", io.EOF)
if c.Err() == nil {
t.Errorf("expected c.Err() != nil")
}
c.Close()
c = p.Get()
c.Do("ERR", io.EOF)
c.Close()
d.check(".", p, 2, 0)
}
func TestPoolClose(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
Dial: d.dial,
}
c1 := p.Get()
c1.Do("PING")
c2 := p.Get()
c2.Do("PING")
c3 := p.Get()
c3.Do("PING")
c1.Close()
if _, err := c1.Do("PING"); err == nil {
t.Errorf("expected error after connection closed")
}
c2.Close()
c2.Close()
p.Close()
d.check("after pool close", p, 3, 1)
if _, err := c1.Do("PING"); err == nil {
t.Errorf("expected error after connection and pool closed")
}
c3.Close()
d.check("after conn close", p, 3, 0)
c1 = p.Get()
if _, err := c1.Do("PING"); err == nil {
t.Errorf("expected error after pool closed")
}
}
func TestPoolTimeout(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
IdleTimeout: 300 * time.Second,
Dial: d.dial,
}
now := time.Now()
redis.SetNowFunc(func() time.Time { return now })
defer redis.SetNowFunc(time.Now)
c := p.Get()
c.Do("PING")
c.Close()
d.check("1", p, 1, 1)
now = now.Add(p.IdleTimeout)
c = p.Get()
c.Do("PING")
c.Close()
d.check("2", p, 2, 1)
p.Close()
}
func TestPoolConcurrenSendReceive(t *testing.T) {
p := &redis.Pool{
Dial: redistest.Dial,
}
c := p.Get()
done := make(chan error, 1)
go func() {
_, err := c.Receive()
done <- err
}()
c.Send("PING")
c.Flush()
err := <-done
if err != nil {
t.Fatalf("Receive() returned error %v", err)
}
_, err = c.Do("")
if err != nil {
t.Fatalf("Do() returned error %v", err)
}
c.Close()
p.Close()
}
func TestPoolBorrowCheck(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
Dial: d.dial,
TestOnBorrow: func(redis.Conn, time.Time) error { return redis.Error("BLAH") },
}
for i := 0; i < 10; i++ {
c := p.Get()
c.Do("PING")
c.Close()
}
d.check("1", p, 10, 1)
p.Close()
}
func TestPoolMaxActive(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
MaxActive: 2,
Dial: d.dial,
}
c1 := p.Get()
c1.Do("PING")
c2 := p.Get()
c2.Do("PING")
d.check("1", p, 2, 2)
c3 := p.Get()
if _, err := c3.Do("PING"); err != redis.ErrPoolExhausted {
t.Errorf("expected pool exhausted")
}
c3.Close()
d.check("2", p, 2, 2)
c2.Close()
d.check("3", p, 2, 2)
c3 = p.Get()
if _, err := c3.Do("PING"); err != nil {
t.Errorf("expected good channel, err=%v", err)
}
c3.Close()
d.check("4", p, 2, 2)
p.Close()
}
func TestPoolMonitorCleanup(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
MaxActive: 2,
Dial: d.dial,
}
c := p.Get()
c.Send("MONITOR")
c.Close()
d.check("", p, 1, 0)
p.Close()
}
func TestPoolPubSubCleanup(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
MaxActive: 2,
Dial: d.dial,
}
c := p.Get()
c.Send("SUBSCRIBE", "x")
c.Close()
want := []string{"SUBSCRIBE", "UNSUBSCRIBE", "PUNSUBSCRIBE", "ECHO"}
if !reflect.DeepEqual(d.commands, want) {
t.Errorf("got commands %v, want %v", d.commands, want)
}
d.commands = nil
c = p.Get()
c.Send("PSUBSCRIBE", "x*")
c.Close()
want = []string{"PSUBSCRIBE", "UNSUBSCRIBE", "PUNSUBSCRIBE", "ECHO"}
if !reflect.DeepEqual(d.commands, want) {
t.Errorf("got commands %v, want %v", d.commands, want)
}
d.commands = nil
p.Close()
}
func TestPoolTransactionCleanup(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
MaxActive: 2,
Dial: d.dial,
}
c := p.Get()
c.Do("WATCH", "key")
c.Do("PING")
c.Close()
want := []string{"WATCH", "PING", "UNWATCH"}
if !reflect.DeepEqual(d.commands, want) {
t.Errorf("got commands %v, want %v", d.commands, want)
}
d.commands = nil
c = p.Get()
c.Do("WATCH", "key")
c.Do("UNWATCH")
c.Do("PING")
c.Close()
want = []string{"WATCH", "UNWATCH", "PING"}
if !reflect.DeepEqual(d.commands, want) {
t.Errorf("got commands %v, want %v", d.commands, want)
}
d.commands = nil
c = p.Get()
c.Do("WATCH", "key")
c.Do("MULTI")
c.Do("PING")
c.Close()
want = []string{"WATCH", "MULTI", "PING", "DISCARD"}
if !reflect.DeepEqual(d.commands, want) {
t.Errorf("got commands %v, want %v", d.commands, want)
}
d.commands = nil
c = p.Get()
c.Do("WATCH", "key")
c.Do("MULTI")
c.Do("DISCARD")
c.Do("PING")
c.Close()
want = []string{"WATCH", "MULTI", "DISCARD", "PING"}
if !reflect.DeepEqual(d.commands, want) {
t.Errorf("got commands %v, want %v", d.commands, want)
}
d.commands = nil
c = p.Get()
c.Do("WATCH", "key")
c.Do("MULTI")
c.Do("EXEC")
c.Do("PING")
c.Close()
want = []string{"WATCH", "MULTI", "EXEC", "PING"}
if !reflect.DeepEqual(d.commands, want) {
t.Errorf("got commands %v, want %v", d.commands, want)
}
d.commands = nil
p.Close()
}
func startGoroutines(p *redis.Pool, cmd string, args ...interface{}) chan error {
errs := make(chan error, 10)
for i := 0; i < cap(errs); i++ {
go func() {
c := p.Get()
_, err := c.Do(cmd, args...)
errs <- err
c.Close()
}()
}
// Wait for goroutines to block.
time.Sleep(time.Second / 4)
return errs
}
func TestWaitPool(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 1,
MaxActive: 1,
Dial: d.dial,
Wait: true,
}
defer p.Close()
c := p.Get()
errs := startGoroutines(p, "PING")
d.check("before close", p, 1, 1)
c.Close()
timeout := time.After(2 * time.Second)
for i := 0; i < cap(errs); i++ {
select {
case err := <-errs:
if err != nil {
t.Fatal(err)
}
case <-timeout:
t.Fatalf("timeout waiting for blocked goroutine %d", i)
}
}
d.check("done", p, 1, 1)
}
func TestWaitPoolClose(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 1,
MaxActive: 1,
Dial: d.dial,
Wait: true,
}
c := p.Get()
if _, err := c.Do("PING"); err != nil {
t.Fatal(err)
}
errs := startGoroutines(p, "PING")
d.check("before close", p, 1, 1)
p.Close()
timeout := time.After(2 * time.Second)
for i := 0; i < cap(errs); i++ {
select {
case err := <-errs:
switch err {
case nil:
t.Fatal("blocked goroutine did not get error")
case redis.ErrPoolExhausted:
t.Fatal("blocked goroutine got pool exhausted error")
}
case <-timeout:
t.Fatal("timeout waiting for blocked goroutine")
}
}
c.Close()
d.check("done", p, 1, 0)
}
func TestWaitPoolCommandError(t *testing.T) {
testErr := errors.New("test")
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 1,
MaxActive: 1,
Dial: d.dial,
Wait: true,
}
defer p.Close()
c := p.Get()
errs := startGoroutines(p, "ERR", testErr)
d.check("before close", p, 1, 1)
c.Close()
timeout := time.After(2 * time.Second)
for i := 0; i < cap(errs); i++ {
select {
case err := <-errs:
if err != nil {
t.Fatal(err)
}
case <-timeout:
t.Fatalf("timeout waiting for blocked goroutine %d", i)
}
}
d.check("done", p, cap(errs), 0)
}
func TestWaitPoolDialError(t *testing.T) {
testErr := errors.New("test")
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 1,
MaxActive: 1,
Dial: d.dial,
Wait: true,
}
defer p.Close()
c := p.Get()
errs := startGoroutines(p, "ERR", testErr)
d.check("before close", p, 1, 1)
d.dialErr = errors.New("dial")
c.Close()
nilCount := 0
errCount := 0
timeout := time.After(2 * time.Second)
for i := 0; i < cap(errs); i++ {
select {
case err := <-errs:
switch err {
case nil:
nilCount++
case d.dialErr:
errCount++
default:
t.Fatalf("expected dial error or nil, got %v", err)
}
case <-timeout:
t.Fatalf("timeout waiting for blocked goroutine %d", i)
}
}
if nilCount != 1 {
t.Errorf("expected one nil error, got %d", nilCount)
}
if errCount != cap(errs)-1 {
t.Errorf("expected %d dial erors, got %d", cap(errs)-1, errCount)
}
d.check("done", p, cap(errs), 0)
}
// Borrowing requires us to iterate over the idle connections, unlock the pool,
// and perform a blocking operation to check the connection still works. If
// TestOnBorrow fails, we must reacquire the lock and continue iteration. This
// test ensures that iteration will work correctly if multiple threads are
// iterating simultaneously.
func TestLocking_TestOnBorrowFails_PoolDoesntCrash(t *testing.T) {
count := 100
// First we'll Create a pool where the pilfering of idle connections fails.
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: count,
MaxActive: count,
Dial: d.dial,
TestOnBorrow: func(c redis.Conn, t time.Time) error {
return errors.New("No way back into the real world.")
},
}
defer p.Close()
// Fill the pool with idle connections.
b1 := sync.WaitGroup{}
b1.Add(count)
b2 := sync.WaitGroup{}
b2.Add(count)
for i := 0; i < count; i++ {
go func() {
c := p.Get()
if c.Err() != nil {
t.Errorf("pool get failed: %v", c.Err())
}
b1.Done()
b1.Wait()
c.Close()
b2.Done()
}()
}
b2.Wait()
if d.dialed != count {
t.Errorf("Expected %d dials, got %d", count, d.dialed)
}
// Spawn a bunch of goroutines to thrash the pool.
b2.Add(count)
for i := 0; i < count; i++ {
go func() {
c := p.Get()
if c.Err() != nil {
t.Errorf("pool get failed: %v", c.Err())
}
c.Close()
b2.Done()
}()
}
b2.Wait()
if d.dialed != count*2 {
t.Errorf("Expected %d dials, got %d", count*2, d.dialed)
}
}
func BenchmarkPoolGet(b *testing.B) {
b.StopTimer()
p := redis.Pool{Dial: redistest.Dial, MaxIdle: 2}
c := p.Get()
if err := c.Err(); err != nil {
b.Fatal(err)
}
c.Close()
defer p.Close()
b.StartTimer()
for i := 0; i < b.N; i++ {
c = p.Get()
c.Close()
}
}
func BenchmarkPoolGetErr(b *testing.B) {
b.StopTimer()
p := redis.Pool{Dial: redistest.Dial, MaxIdle: 2}
c := p.Get()
if err := c.Err(); err != nil {
b.Fatal(err)
}
c.Close()
defer p.Close()
b.StartTimer()
for i := 0; i < b.N; i++ {
c = p.Get()
if err := c.Err(); err != nil {
b.Fatal(err)
}
c.Close()
}
}
func BenchmarkPoolGetPing(b *testing.B) {
b.StopTimer()
p := redis.Pool{Dial: redistest.Dial, MaxIdle: 2}
c := p.Get()
if err := c.Err(); err != nil {
b.Fatal(err)
}
c.Close()
defer p.Close()
b.StartTimer()
for i := 0; i < b.N; i++ {
c = p.Get()
if _, err := c.Do("PING"); err != nil {
b.Fatal(err)
}
c.Close()
}
}

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@ -1,143 +0,0 @@
// 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_test
import (
"fmt"
"net"
"reflect"
"sync"
"testing"
"time"
"github.com/garyburd/redigo/internal/redistest"
"github.com/garyburd/redigo/redis"
)
func publish(channel, value interface{}) {
c, err := dial()
if err != nil {
panic(err)
}
defer c.Close()
c.Do("PUBLISH", channel, value)
}
// Applications can receive pushed messages from one goroutine and manage subscriptions from another goroutine.
func ExamplePubSubConn() {
c, err := dial()
if err != nil {
panic(err)
}
defer c.Close()
var wg sync.WaitGroup
wg.Add(2)
psc := redis.PubSubConn{Conn: c}
// This goroutine receives and prints pushed notifications from the server.
// The goroutine exits when the connection is unsubscribed from all
// channels or there is an error.
go func() {
defer wg.Done()
for {
switch n := psc.Receive().(type) {
case redis.Message:
fmt.Printf("Message: %s %s\n", n.Channel, n.Data)
case redis.PMessage:
fmt.Printf("PMessage: %s %s %s\n", n.Pattern, n.Channel, n.Data)
case redis.Subscription:
fmt.Printf("Subscription: %s %s %d\n", n.Kind, n.Channel, n.Count)
if n.Count == 0 {
return
}
case error:
fmt.Printf("error: %v\n", n)
return
}
}
}()
// This goroutine manages subscriptions for the connection.
go func() {
defer wg.Done()
psc.Subscribe("example")
psc.PSubscribe("p*")
// The following function calls publish a message using another
// connection to the Redis server.
publish("example", "hello")
publish("example", "world")
publish("pexample", "foo")
publish("pexample", "bar")
// Unsubscribe from all connections. This will cause the receiving
// goroutine to exit.
psc.Unsubscribe()
psc.PUnsubscribe()
}()
wg.Wait()
// Output:
// Subscription: subscribe example 1
// Subscription: psubscribe p* 2
// Message: example hello
// Message: example world
// PMessage: p* pexample foo
// PMessage: p* pexample bar
// Subscription: unsubscribe example 1
// Subscription: punsubscribe p* 0
}
func expectPushed(t *testing.T, c redis.PubSubConn, message string, expected interface{}) {
actual := c.Receive()
if !reflect.DeepEqual(actual, expected) {
t.Errorf("%s = %v, want %v", message, actual, expected)
}
}
func TestPushed(t *testing.T) {
pc, err := redistest.Dial()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer pc.Close()
nc, err := net.Dial("tcp", ":6379")
if err != nil {
t.Fatal(err)
}
defer nc.Close()
nc.SetReadDeadline(time.Now().Add(4 * time.Second))
c := redis.PubSubConn{Conn: redis.NewConn(nc, 0, 0)}
c.Subscribe("c1")
expectPushed(t, c, "Subscribe(c1)", redis.Subscription{Kind: "subscribe", Channel: "c1", Count: 1})
c.Subscribe("c2")
expectPushed(t, c, "Subscribe(c2)", redis.Subscription{Kind: "subscribe", Channel: "c2", Count: 2})
c.PSubscribe("p1")
expectPushed(t, c, "PSubscribe(p1)", redis.Subscription{Kind: "psubscribe", Channel: "p1", Count: 3})
c.PSubscribe("p2")
expectPushed(t, c, "PSubscribe(p2)", redis.Subscription{Kind: "psubscribe", Channel: "p2", Count: 4})
c.PUnsubscribe()
expectPushed(t, c, "Punsubscribe(p1)", redis.Subscription{Kind: "punsubscribe", Channel: "p1", Count: 3})
expectPushed(t, c, "Punsubscribe()", redis.Subscription{Kind: "punsubscribe", Channel: "p2", Count: 2})
pc.Do("PUBLISH", "c1", "hello")
expectPushed(t, c, "PUBLISH c1 hello", redis.Message{Channel: "c1", Data: []byte("hello")})
}

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@ -1,166 +0,0 @@
// 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_test
import (
"fmt"
"reflect"
"testing"
"github.com/garyburd/redigo/internal/redistest"
"github.com/garyburd/redigo/redis"
)
type valueError struct {
v interface{}
err error
}
func ve(v interface{}, err error) valueError {
return valueError{v, err}
}
var replyTests = []struct {
name interface{}
actual valueError
expected valueError
}{
{
"ints([v1, v2])",
ve(redis.Ints([]interface{}{[]byte("4"), []byte("5")}, nil)),
ve([]int{4, 5}, nil),
},
{
"ints(nil)",
ve(redis.Ints(nil, nil)),
ve([]int(nil), redis.ErrNil),
},
{
"strings([v1, v2])",
ve(redis.Strings([]interface{}{[]byte("v1"), []byte("v2")}, nil)),
ve([]string{"v1", "v2"}, nil),
},
{
"strings(nil)",
ve(redis.Strings(nil, nil)),
ve([]string(nil), redis.ErrNil),
},
{
"values([v1, v2])",
ve(redis.Values([]interface{}{[]byte("v1"), []byte("v2")}, nil)),
ve([]interface{}{[]byte("v1"), []byte("v2")}, nil),
},
{
"values(nil)",
ve(redis.Values(nil, nil)),
ve([]interface{}(nil), redis.ErrNil),
},
{
"float64(1.0)",
ve(redis.Float64([]byte("1.0"), nil)),
ve(float64(1.0), nil),
},
{
"float64(nil)",
ve(redis.Float64(nil, nil)),
ve(float64(0.0), redis.ErrNil),
},
{
"uint64(1)",
ve(redis.Uint64(int64(1), nil)),
ve(uint64(1), nil),
},
{
"uint64(-1)",
ve(redis.Uint64(int64(-1), nil)),
ve(uint64(0), redis.ErrNegativeInt),
},
}
func TestReply(t *testing.T) {
for _, rt := range replyTests {
if rt.actual.err != rt.expected.err {
t.Errorf("%s returned err %v, want %v", rt.name, rt.actual.err, rt.expected.err)
continue
}
if !reflect.DeepEqual(rt.actual.v, rt.expected.v) {
t.Errorf("%s=%+v, want %+v", rt.name, rt.actual.v, rt.expected.v)
}
}
}
// dial wraps DialTestDB() with a more suitable function name for examples.
func dial() (redis.Conn, error) {
return redistest.Dial()
}
func ExampleBool() {
c, err := dial()
if err != nil {
panic(err)
}
defer c.Close()
c.Do("SET", "foo", 1)
exists, _ := redis.Bool(c.Do("EXISTS", "foo"))
fmt.Printf("%#v\n", exists)
// Output:
// true
}
func ExampleInt() {
c, err := dial()
if err != nil {
panic(err)
}
defer c.Close()
c.Do("SET", "k1", 1)
n, _ := redis.Int(c.Do("GET", "k1"))
fmt.Printf("%#v\n", n)
n, _ = redis.Int(c.Do("INCR", "k1"))
fmt.Printf("%#v\n", n)
// Output:
// 1
// 2
}
func ExampleInts() {
c, err := dial()
if err != nil {
panic(err)
}
defer c.Close()
c.Do("SADD", "set_with_integers", 4, 5, 6)
ints, _ := redis.Ints(c.Do("SMEMBERS", "set_with_integers"))
fmt.Printf("%#v\n", ints)
// Output:
// []int{4, 5, 6}
}
func ExampleString() {
c, err := dial()
if err != nil {
panic(err)
}
defer c.Close()
c.Do("SET", "hello", "world")
s, err := redis.String(c.Do("GET", "hello"))
fmt.Printf("%#v\n", s)
// Output:
// "world"
}

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@ -1,412 +0,0 @@
// 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_test
import (
"fmt"
"github.com/garyburd/redigo/redis"
"math"
"reflect"
"testing"
)
var scanConversionTests = []struct {
src interface{}
dest interface{}
}{
{[]byte("-inf"), math.Inf(-1)},
{[]byte("+inf"), math.Inf(1)},
{[]byte("0"), float64(0)},
{[]byte("3.14159"), float64(3.14159)},
{[]byte("3.14"), float32(3.14)},
{[]byte("-100"), int(-100)},
{[]byte("101"), int(101)},
{int64(102), int(102)},
{[]byte("103"), uint(103)},
{int64(104), uint(104)},
{[]byte("105"), int8(105)},
{int64(106), int8(106)},
{[]byte("107"), uint8(107)},
{int64(108), uint8(108)},
{[]byte("0"), false},
{int64(0), false},
{[]byte("f"), false},
{[]byte("1"), true},
{int64(1), true},
{[]byte("t"), true},
{[]byte("hello"), "hello"},
{[]byte("world"), []byte("world")},
{[]interface{}{[]byte("foo")}, []interface{}{[]byte("foo")}},
{[]interface{}{[]byte("foo")}, []string{"foo"}},
{[]interface{}{[]byte("hello"), []byte("world")}, []string{"hello", "world"}},
{[]interface{}{[]byte("bar")}, [][]byte{[]byte("bar")}},
{[]interface{}{[]byte("1")}, []int{1}},
{[]interface{}{[]byte("1"), []byte("2")}, []int{1, 2}},
{[]interface{}{[]byte("1"), []byte("2")}, []float64{1, 2}},
{[]interface{}{[]byte("1")}, []byte{1}},
{[]interface{}{[]byte("1")}, []bool{true}},
}
func TestScanConversion(t *testing.T) {
for _, tt := range scanConversionTests {
values := []interface{}{tt.src}
dest := reflect.New(reflect.TypeOf(tt.dest))
values, err := redis.Scan(values, dest.Interface())
if err != nil {
t.Errorf("Scan(%v) returned error %v", tt, err)
continue
}
if !reflect.DeepEqual(tt.dest, dest.Elem().Interface()) {
t.Errorf("Scan(%v) returned %v, want %v", tt, dest.Elem().Interface(), tt.dest)
}
}
}
var scanConversionErrorTests = []struct {
src interface{}
dest interface{}
}{
{[]byte("1234"), byte(0)},
{int64(1234), byte(0)},
{[]byte("-1"), byte(0)},
{int64(-1), byte(0)},
{[]byte("junk"), false},
{redis.Error("blah"), false},
}
func TestScanConversionError(t *testing.T) {
for _, tt := range scanConversionErrorTests {
values := []interface{}{tt.src}
dest := reflect.New(reflect.TypeOf(tt.dest))
values, err := redis.Scan(values, dest.Interface())
if err == nil {
t.Errorf("Scan(%v) did not return error", tt)
}
}
}
func ExampleScan() {
c, err := dial()
if err != nil {
panic(err)
}
defer c.Close()
c.Send("HMSET", "album:1", "title", "Red", "rating", 5)
c.Send("HMSET", "album:2", "title", "Earthbound", "rating", 1)
c.Send("HMSET", "album:3", "title", "Beat")
c.Send("LPUSH", "albums", "1")
c.Send("LPUSH", "albums", "2")
c.Send("LPUSH", "albums", "3")
values, err := redis.Values(c.Do("SORT", "albums",
"BY", "album:*->rating",
"GET", "album:*->title",
"GET", "album:*->rating"))
if err != nil {
panic(err)
}
for len(values) > 0 {
var title string
rating := -1 // initialize to illegal value to detect nil.
values, err = redis.Scan(values, &title, &rating)
if err != nil {
panic(err)
}
if rating == -1 {
fmt.Println(title, "not-rated")
} else {
fmt.Println(title, rating)
}
}
// Output:
// Beat not-rated
// Earthbound 1
// Red 5
}
type s0 struct {
X int
Y int `redis:"y"`
Bt bool
}
type s1 struct {
X int `redis:"-"`
I int `redis:"i"`
U uint `redis:"u"`
S string `redis:"s"`
P []byte `redis:"p"`
B bool `redis:"b"`
Bt bool
Bf bool
s0
}
var scanStructTests = []struct {
title string
reply []string
value interface{}
}{
{"basic",
[]string{"i", "-1234", "u", "5678", "s", "hello", "p", "world", "b", "t", "Bt", "1", "Bf", "0", "X", "123", "y", "456"},
&s1{I: -1234, U: 5678, S: "hello", P: []byte("world"), B: true, Bt: true, Bf: false, s0: s0{X: 123, Y: 456}},
},
}
func TestScanStruct(t *testing.T) {
for _, tt := range scanStructTests {
var reply []interface{}
for _, v := range tt.reply {
reply = append(reply, []byte(v))
}
value := reflect.New(reflect.ValueOf(tt.value).Type().Elem())
if err := redis.ScanStruct(reply, value.Interface()); err != nil {
t.Fatalf("ScanStruct(%s) returned error %v", tt.title, err)
}
if !reflect.DeepEqual(value.Interface(), tt.value) {
t.Fatalf("ScanStruct(%s) returned %v, want %v", tt.title, value.Interface(), tt.value)
}
}
}
func TestBadScanStructArgs(t *testing.T) {
x := []interface{}{"A", "b"}
test := func(v interface{}) {
if err := redis.ScanStruct(x, v); err == nil {
t.Errorf("Expect error for ScanStruct(%T, %T)", x, v)
}
}
test(nil)
var v0 *struct{}
test(v0)
var v1 int
test(&v1)
x = x[:1]
v2 := struct{ A string }{}
test(&v2)
}
var scanSliceTests = []struct {
src []interface{}
fieldNames []string
ok bool
dest interface{}
}{
{
[]interface{}{[]byte("1"), nil, []byte("-1")},
nil,
true,
[]int{1, 0, -1},
},
{
[]interface{}{[]byte("1"), nil, []byte("2")},
nil,
true,
[]uint{1, 0, 2},
},
{
[]interface{}{[]byte("-1")},
nil,
false,
[]uint{1},
},
{
[]interface{}{[]byte("hello"), nil, []byte("world")},
nil,
true,
[][]byte{[]byte("hello"), nil, []byte("world")},
},
{
[]interface{}{[]byte("hello"), nil, []byte("world")},
nil,
true,
[]string{"hello", "", "world"},
},
{
[]interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")},
nil,
true,
[]struct{ A, B string }{{"a1", "b1"}, {"a2", "b2"}},
},
{
[]interface{}{[]byte("a1"), []byte("b1")},
nil,
false,
[]struct{ A, B, C string }{{"a1", "b1", ""}},
},
{
[]interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")},
nil,
true,
[]*struct{ A, B string }{{"a1", "b1"}, {"a2", "b2"}},
},
{
[]interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")},
[]string{"A", "B"},
true,
[]struct{ A, C, B string }{{"a1", "", "b1"}, {"a2", "", "b2"}},
},
{
[]interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")},
nil,
false,
[]struct{}{},
},
}
func TestScanSlice(t *testing.T) {
for _, tt := range scanSliceTests {
typ := reflect.ValueOf(tt.dest).Type()
dest := reflect.New(typ)
err := redis.ScanSlice(tt.src, dest.Interface(), tt.fieldNames...)
if tt.ok != (err == nil) {
t.Errorf("ScanSlice(%v, []%s, %v) returned error %v", tt.src, typ, tt.fieldNames, err)
continue
}
if tt.ok && !reflect.DeepEqual(dest.Elem().Interface(), tt.dest) {
t.Errorf("ScanSlice(src, []%s) returned %#v, want %#v", typ, dest.Elem().Interface(), tt.dest)
}
}
}
func ExampleScanSlice() {
c, err := dial()
if err != nil {
panic(err)
}
defer c.Close()
c.Send("HMSET", "album:1", "title", "Red", "rating", 5)
c.Send("HMSET", "album:2", "title", "Earthbound", "rating", 1)
c.Send("HMSET", "album:3", "title", "Beat", "rating", 4)
c.Send("LPUSH", "albums", "1")
c.Send("LPUSH", "albums", "2")
c.Send("LPUSH", "albums", "3")
values, err := redis.Values(c.Do("SORT", "albums",
"BY", "album:*->rating",
"GET", "album:*->title",
"GET", "album:*->rating"))
if err != nil {
panic(err)
}
var albums []struct {
Title string
Rating int
}
if err := redis.ScanSlice(values, &albums); err != nil {
panic(err)
}
fmt.Printf("%v\n", albums)
// Output:
// [{Earthbound 1} {Beat 4} {Red 5}]
}
var argsTests = []struct {
title string
actual redis.Args
expected redis.Args
}{
{"struct ptr",
redis.Args{}.AddFlat(&struct {
I int `redis:"i"`
U uint `redis:"u"`
S string `redis:"s"`
P []byte `redis:"p"`
Bt bool
Bf bool
}{
-1234, 5678, "hello", []byte("world"), true, false,
}),
redis.Args{"i", int(-1234), "u", uint(5678), "s", "hello", "p", []byte("world"), "Bt", true, "Bf", false},
},
{"struct",
redis.Args{}.AddFlat(struct{ I int }{123}),
redis.Args{"I", 123},
},
{"slice",
redis.Args{}.Add(1).AddFlat([]string{"a", "b", "c"}).Add(2),
redis.Args{1, "a", "b", "c", 2},
},
}
func TestArgs(t *testing.T) {
for _, tt := range argsTests {
if !reflect.DeepEqual(tt.actual, tt.expected) {
t.Fatalf("%s is %v, want %v", tt.title, tt.actual, tt.expected)
}
}
}
func ExampleArgs() {
c, err := dial()
if err != nil {
panic(err)
}
defer c.Close()
var p1, p2 struct {
Title string `redis:"title"`
Author string `redis:"author"`
Body string `redis:"body"`
}
p1.Title = "Example"
p1.Author = "Gary"
p1.Body = "Hello"
if _, err := c.Do("HMSET", redis.Args{}.Add("id1").AddFlat(&p1)...); err != nil {
panic(err)
}
m := map[string]string{
"title": "Example2",
"author": "Steve",
"body": "Map",
}
if _, err := c.Do("HMSET", redis.Args{}.Add("id2").AddFlat(m)...); err != nil {
panic(err)
}
for _, id := range []string{"id1", "id2"} {
v, err := redis.Values(c.Do("HGETALL", id))
if err != nil {
panic(err)
}
if err := redis.ScanStruct(v, &p2); err != nil {
panic(err)
}
fmt.Printf("%+v\n", p2)
}
// Output:
// {Title:Example Author:Gary Body:Hello}
// {Title:Example2 Author:Steve Body:Map}
}

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@ -1,93 +0,0 @@
// 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_test
import (
"fmt"
"reflect"
"testing"
"time"
"github.com/garyburd/redigo/internal/redistest"
"github.com/garyburd/redigo/redis"
)
func ExampleScript(c redis.Conn, reply interface{}, err error) {
// Initialize a package-level variable with a script.
var getScript = redis.NewScript(1, `return redis.call('get', KEYS[1])`)
// In a function, use the script Do method to evaluate the script. The Do
// method optimistically uses the EVALSHA command. If the script is not
// loaded, then the Do method falls back to the EVAL command.
reply, err = getScript.Do(c, "foo")
}
func TestScript(t *testing.T) {
c, err := redistest.Dial()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer c.Close()
// To test fall back in Do, we make script unique by adding comment with current time.
script := fmt.Sprintf("--%d\nreturn {KEYS[1],KEYS[2],ARGV[1],ARGV[2]}", time.Now().UnixNano())
s := redis.NewScript(2, script)
reply := []interface{}{[]byte("key1"), []byte("key2"), []byte("arg1"), []byte("arg2")}
v, err := s.Do(c, "key1", "key2", "arg1", "arg2")
if err != nil {
t.Errorf("s.Do(c, ...) returned %v", err)
}
if !reflect.DeepEqual(v, reply) {
t.Errorf("s.Do(c, ..); = %v, want %v", v, reply)
}
err = s.Load(c)
if err != nil {
t.Errorf("s.Load(c) returned %v", err)
}
err = s.SendHash(c, "key1", "key2", "arg1", "arg2")
if err != nil {
t.Errorf("s.SendHash(c, ...) returned %v", err)
}
err = c.Flush()
if err != nil {
t.Errorf("c.Flush() returned %v", err)
}
v, err = c.Receive()
if !reflect.DeepEqual(v, reply) {
t.Errorf("s.SendHash(c, ..); c.Receive() = %v, want %v", v, reply)
}
err = s.Send(c, "key1", "key2", "arg1", "arg2")
if err != nil {
t.Errorf("s.Send(c, ...) returned %v", err)
}
err = c.Flush()
if err != nil {
t.Errorf("c.Flush() returned %v", err)
}
v, err = c.Receive()
if !reflect.DeepEqual(v, reply) {
t.Errorf("s.Send(c, ..); c.Receive() = %v, want %v", v, reply)
}
}

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@ -1,38 +0,0 @@
// 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"
"net"
"time"
)
func SetNowFunc(f func() time.Time) {
nowFunc = f
}
type nopCloser struct{ net.Conn }
func (nopCloser) Close() error { return nil }
// NewConnBufio is a hook for tests.
func NewConnBufio(rw bufio.ReadWriter) Conn {
return &conn{br: rw.Reader, bw: rw.Writer, conn: nopCloser{}}
}
var (
ErrNegativeInt = errNegativeInt
)

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@ -1,113 +0,0 @@
// Copyright 2013 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_test
import (
"fmt"
"github.com/garyburd/redigo/redis"
)
// zpop pops a value from the ZSET key using WATCH/MULTI/EXEC commands.
func zpop(c redis.Conn, key string) (result string, err error) {
defer func() {
// Return connection to normal state on error.
if err != nil {
c.Do("DISCARD")
}
}()
// Loop until transaction is successful.
for {
if _, err := c.Do("WATCH", key); err != nil {
return "", err
}
members, err := redis.Strings(c.Do("ZRANGE", key, 0, 0))
if err != nil {
return "", err
}
if len(members) != 1 {
return "", redis.ErrNil
}
c.Send("MULTI")
c.Send("ZREM", key, members[0])
queued, err := c.Do("EXEC")
if err != nil {
return "", err
}
if queued != nil {
result = members[0]
break
}
}
return result, nil
}
// zpopScript pops a value from a ZSET.
var zpopScript = redis.NewScript(1, `
local r = redis.call('ZRANGE', KEYS[1], 0, 0)
if r ~= nil then
r = r[1]
redis.call('ZREM', KEYS[1], r)
end
return r
`)
// This example implements ZPOP as described at
// http://redis.io/topics/transactions using WATCH/MULTI/EXEC and scripting.
func Example_zpop() {
c, err := dial()
if err != nil {
fmt.Println(err)
return
}
defer c.Close()
// Add test data using a pipeline.
for i, member := range []string{"red", "blue", "green"} {
c.Send("ZADD", "zset", i, member)
}
if _, err := c.Do(""); err != nil {
fmt.Println(err)
return
}
// Pop using WATCH/MULTI/EXEC
v, err := zpop(c, "zset")
if err != nil {
fmt.Println(err)
return
}
fmt.Println(v)
// Pop using a script.
v, err = redis.String(zpopScript.Do(c, "zset"))
if err != nil {
fmt.Println(err)
return
}
fmt.Println(v)
// Output:
// red
// blue
}