transfer.sh/vendor/github.com/garyburd/redigo/redis/conn_test.go
Remco cb6e5cb0c7 Major rewrite
* use dep for vendoring
* lets encrypt
* moved web to transfer.sh-web repo
* single command install
* added first tests
2017-03-22 18:09:21 +01:00

670 lines
14 KiB
Go

// 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 (
"bytes"
"io"
"math"
"net"
"os"
"reflect"
"strings"
"testing"
"time"
"github.com/garyburd/redigo/redis"
)
type testConn struct {
io.Reader
io.Writer
}
func (*testConn) Close() error { return nil }
func (*testConn) LocalAddr() net.Addr { return nil }
func (*testConn) RemoteAddr() net.Addr { return nil }
func (*testConn) SetDeadline(t time.Time) error { return nil }
func (*testConn) SetReadDeadline(t time.Time) error { return nil }
func (*testConn) SetWriteDeadline(t time.Time) error { return nil }
func dialTestConn(r io.Reader, w io.Writer) redis.DialOption {
return redis.DialNetDial(func(net, addr string) (net.Conn, error) {
return &testConn{Reader: r, Writer: w}, nil
})
}
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
c, _ := redis.Dial("", "", dialTestConn(nil, &buf))
err := c.Send(tt.args[0].(string), tt.args[1:]...)
if err != nil {
t.Errorf("Send(%v) returned error %v", tt.args, err)
continue
}
c.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 {
c, _ := redis.Dial("", "", dialTestConn(strings.NewReader(tt.reply), nil))
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 := redis.DialDefaultServer()
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 := redis.DialDefaultServer()
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 := redis.DialDefaultServer()
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 := redis.DialDefaultServer()
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 := redis.DialDefaultServer()
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 TestReadTimeout(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()
}()
}
}()
// Do
c1, err := redis.Dial(l.Addr().Network(), l.Addr().String(), redis.DialReadTimeout(time.Millisecond))
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")
}
// Send/Flush/Receive
c2, err := redis.Dial(l.Addr().Network(), l.Addr().String(), redis.DialReadTimeout(time.Millisecond))
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")
}
}
var dialErrors = []struct {
rawurl string
expectedError string
}{
{
"localhost",
"invalid redis URL scheme",
},
// The error message for invalid hosts is diffferent in different
// versions of Go, so just check that there is an error message.
{
"redis://weird url",
"",
},
{
"redis://foo:bar:baz",
"",
},
{
"http://www.google.com",
"invalid redis URL scheme: http",
},
{
"redis://localhost:6379/abc123",
"invalid database: abc123",
},
}
func TestDialURLErrors(t *testing.T) {
for _, d := range dialErrors {
_, err := redis.DialURL(d.rawurl)
if err == nil || !strings.Contains(err.Error(), d.expectedError) {
t.Errorf("DialURL did not return expected error (expected %v to contain %s)", err, d.expectedError)
}
}
}
func TestDialURLPort(t *testing.T) {
checkPort := func(network, address string) (net.Conn, error) {
if address != "localhost:6379" {
t.Errorf("DialURL did not set port to 6379 by default (got %v)", address)
}
return nil, nil
}
_, err := redis.DialURL("redis://localhost", redis.DialNetDial(checkPort))
if err != nil {
t.Error("dial error:", err)
}
}
func TestDialURLHost(t *testing.T) {
checkHost := func(network, address string) (net.Conn, error) {
if address != "localhost:6379" {
t.Errorf("DialURL did not set host to localhost by default (got %v)", address)
}
return nil, nil
}
_, err := redis.DialURL("redis://:6379", redis.DialNetDial(checkHost))
if err != nil {
t.Error("dial error:", err)
}
}
func TestDialURLPassword(t *testing.T) {
var buf bytes.Buffer
_, err := redis.DialURL("redis://x:abc123@localhost", dialTestConn(strings.NewReader("+OK\r\n"), &buf))
if err != nil {
t.Error("dial error:", err)
}
expected := "*2\r\n$4\r\nAUTH\r\n$6\r\nabc123\r\n"
actual := buf.String()
if actual != expected {
t.Errorf("commands = %q, want %q", actual, expected)
}
}
func TestDialURLDatabase(t *testing.T) {
var buf3 bytes.Buffer
_, err3 := redis.DialURL("redis://localhost/3", dialTestConn(strings.NewReader("+OK\r\n"), &buf3))
if err3 != nil {
t.Error("dial error:", err3)
}
expected3 := "*2\r\n$6\r\nSELECT\r\n$1\r\n3\r\n"
actual3 := buf3.String()
if actual3 != expected3 {
t.Errorf("commands = %q, want %q", actual3, expected3)
}
// empty DB means 0
var buf0 bytes.Buffer
_, err0 := redis.DialURL("redis://localhost/", dialTestConn(strings.NewReader("+OK\r\n"), &buf0))
if err0 != nil {
t.Error("dial error:", err0)
}
expected0 := ""
actual0 := buf0.String()
if actual0 != expected0 {
t.Errorf("commands = %q, want %q", actual0, expected0)
}
}
// Connect to local instance of Redis running on the default port.
func ExampleDial() {
c, err := redis.Dial("tcp", ":6379")
if err != nil {
// handle error
}
defer c.Close()
}
// Connect to remote instance of Redis using a URL.
func ExampleDialURL() {
c, err := redis.DialURL(os.Getenv("REDIS_URL"))
if err != nil {
// handle connection 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 := redis.DialDefaultServer()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer c.Close()
// Execute commands that fail before EXEC is called.
c.Do("DEL", "k0")
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("DEL", "k1")
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[1])
}
// 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 := redis.DialDefaultServer()
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 := redis.DialDefaultServer()
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)
}
}
}