658 lines
14 KiB
Go
658 lines
14 KiB
Go
// Copyright 2012 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 redis
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import (
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"bytes"
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"io"
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"math"
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"net"
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"os"
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"reflect"
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"strings"
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"testing"
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"time"
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)
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type testConn struct {
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io.Reader
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io.Writer
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}
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func (*testConn) Close() error { return nil }
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func (*testConn) LocalAddr() net.Addr { return nil }
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func (*testConn) RemoteAddr() net.Addr { return nil }
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func (*testConn) SetDeadline(t time.Time) error { return nil }
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func (*testConn) SetReadDeadline(t time.Time) error { return nil }
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func (*testConn) SetWriteDeadline(t time.Time) error { return nil }
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func dialTestConn(r io.Reader, w io.Writer) DialOption {
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return DialNetDial(func(net, addr string) (net.Conn, error) {
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return &testConn{Reader: r, Writer: w}, nil
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})
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}
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var writeTests = []struct {
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args []interface{}
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expected string
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}{
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{
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[]interface{}{"SET", "key", "value"},
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"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$5\r\nvalue\r\n",
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},
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{
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[]interface{}{"SET", "key", "value"},
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"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$5\r\nvalue\r\n",
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},
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{
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[]interface{}{"SET", "key", byte(100)},
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"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$3\r\n100\r\n",
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},
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{
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[]interface{}{"SET", "key", 100},
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"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$3\r\n100\r\n",
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},
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{
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[]interface{}{"SET", "key", int64(math.MinInt64)},
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"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$20\r\n-9223372036854775808\r\n",
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},
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{
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[]interface{}{"SET", "key", float64(1349673917.939762)},
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"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$21\r\n1.349673917939762e+09\r\n",
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},
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{
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[]interface{}{"SET", "key", ""},
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"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$0\r\n\r\n",
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},
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{
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[]interface{}{"SET", "key", nil},
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"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$0\r\n\r\n",
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},
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{
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[]interface{}{"ECHO", true, false},
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"*3\r\n$4\r\nECHO\r\n$1\r\n1\r\n$1\r\n0\r\n",
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},
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}
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func TestWrite(t *testing.T) {
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for _, tt := range writeTests {
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var buf bytes.Buffer
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c, _ := Dial("", "", dialTestConn(nil, &buf))
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err := c.Send(tt.args[0].(string), tt.args[1:]...)
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if err != nil {
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t.Errorf("Send(%v) returned error %v", tt.args, err)
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continue
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}
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c.Flush()
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actual := buf.String()
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if actual != tt.expected {
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t.Errorf("Send(%v) = %q, want %q", tt.args, actual, tt.expected)
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}
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}
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}
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var errorSentinel = &struct{}{}
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var readTests = []struct {
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reply string
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expected interface{}
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}{
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{
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"+OK\r\n",
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"OK",
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},
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{
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"+PONG\r\n",
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"PONG",
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},
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{
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"@OK\r\n",
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errorSentinel,
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},
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{
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"$6\r\nfoobar\r\n",
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[]byte("foobar"),
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},
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{
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"$-1\r\n",
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nil,
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},
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{
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":1\r\n",
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int64(1),
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},
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{
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":-2\r\n",
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int64(-2),
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},
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{
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"*0\r\n",
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[]interface{}{},
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},
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{
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"*-1\r\n",
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nil,
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},
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{
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"*4\r\n$3\r\nfoo\r\n$3\r\nbar\r\n$5\r\nHello\r\n$5\r\nWorld\r\n",
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[]interface{}{[]byte("foo"), []byte("bar"), []byte("Hello"), []byte("World")},
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},
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{
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"*3\r\n$3\r\nfoo\r\n$-1\r\n$3\r\nbar\r\n",
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[]interface{}{[]byte("foo"), nil, []byte("bar")},
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},
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{
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// "x" is not a valid length
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"$x\r\nfoobar\r\n",
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errorSentinel,
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},
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{
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// -2 is not a valid length
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"$-2\r\n",
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errorSentinel,
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},
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{
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// "x" is not a valid integer
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":x\r\n",
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errorSentinel,
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},
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{
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// missing \r\n following value
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"$6\r\nfoobar",
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errorSentinel,
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},
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{
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// short value
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"$6\r\nxx",
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errorSentinel,
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},
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{
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// long value
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"$6\r\nfoobarx\r\n",
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errorSentinel,
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},
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}
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func TestRead(t *testing.T) {
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for _, tt := range readTests {
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c, _ := Dial("", "", dialTestConn(strings.NewReader(tt.reply), nil))
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actual, err := c.Receive()
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if tt.expected == errorSentinel {
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if err == nil {
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t.Errorf("Receive(%q) did not return expected error", tt.reply)
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}
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} else {
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if err != nil {
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t.Errorf("Receive(%q) returned error %v", tt.reply, err)
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continue
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}
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if !reflect.DeepEqual(actual, tt.expected) {
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t.Errorf("Receive(%q) = %v, want %v", tt.reply, actual, tt.expected)
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}
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}
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}
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}
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var testCommands = []struct {
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args []interface{}
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expected interface{}
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}{
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{
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[]interface{}{"PING"},
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"PONG",
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},
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{
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[]interface{}{"SET", "foo", "bar"},
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"OK",
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},
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{
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[]interface{}{"GET", "foo"},
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[]byte("bar"),
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},
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{
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[]interface{}{"GET", "nokey"},
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nil,
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},
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{
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[]interface{}{"MGET", "nokey", "foo"},
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[]interface{}{nil, []byte("bar")},
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},
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{
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[]interface{}{"INCR", "mycounter"},
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int64(1),
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},
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{
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[]interface{}{"LPUSH", "mylist", "foo"},
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int64(1),
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},
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{
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[]interface{}{"LPUSH", "mylist", "bar"},
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int64(2),
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},
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{
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[]interface{}{"LRANGE", "mylist", 0, -1},
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[]interface{}{[]byte("bar"), []byte("foo")},
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},
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{
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[]interface{}{"MULTI"},
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"OK",
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},
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{
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[]interface{}{"LRANGE", "mylist", 0, -1},
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"QUEUED",
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},
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{
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[]interface{}{"PING"},
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"QUEUED",
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},
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{
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[]interface{}{"EXEC"},
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[]interface{}{
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[]interface{}{[]byte("bar"), []byte("foo")},
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"PONG",
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},
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},
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}
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func TestDoCommands(t *testing.T) {
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c, err := DialDefaultServer()
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if err != nil {
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t.Fatalf("error connection to database, %v", err)
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}
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defer c.Close()
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for _, cmd := range testCommands {
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actual, err := c.Do(cmd.args[0].(string), cmd.args[1:]...)
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if err != nil {
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t.Errorf("Do(%v) returned error %v", cmd.args, err)
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continue
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}
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if !reflect.DeepEqual(actual, cmd.expected) {
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t.Errorf("Do(%v) = %v, want %v", cmd.args, actual, cmd.expected)
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}
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}
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}
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func TestPipelineCommands(t *testing.T) {
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c, err := DialDefaultServer()
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if err != nil {
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t.Fatalf("error connection to database, %v", err)
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}
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defer c.Close()
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for _, cmd := range testCommands {
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if err := c.Send(cmd.args[0].(string), cmd.args[1:]...); err != nil {
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t.Fatalf("Send(%v) returned error %v", cmd.args, err)
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}
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}
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if err := c.Flush(); err != nil {
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t.Errorf("Flush() returned error %v", err)
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}
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for _, cmd := range testCommands {
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actual, err := c.Receive()
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if err != nil {
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t.Fatalf("Receive(%v) returned error %v", cmd.args, err)
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}
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if !reflect.DeepEqual(actual, cmd.expected) {
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t.Errorf("Receive(%v) = %v, want %v", cmd.args, actual, cmd.expected)
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}
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}
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}
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func TestBlankCommmand(t *testing.T) {
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c, err := DialDefaultServer()
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if err != nil {
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t.Fatalf("error connection to database, %v", err)
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}
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defer c.Close()
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for _, cmd := range testCommands {
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if err = c.Send(cmd.args[0].(string), cmd.args[1:]...); err != nil {
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t.Fatalf("Send(%v) returned error %v", cmd.args, err)
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}
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}
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reply, err := Values(c.Do(""))
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if err != nil {
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t.Fatalf("Do() returned error %v", err)
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}
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if len(reply) != len(testCommands) {
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t.Fatalf("len(reply)=%d, want %d", len(reply), len(testCommands))
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}
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for i, cmd := range testCommands {
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actual := reply[i]
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if !reflect.DeepEqual(actual, cmd.expected) {
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t.Errorf("Receive(%v) = %v, want %v", cmd.args, actual, cmd.expected)
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}
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}
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}
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func TestRecvBeforeSend(t *testing.T) {
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c, err := DialDefaultServer()
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if err != nil {
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t.Fatalf("error connection to database, %v", err)
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}
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defer c.Close()
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done := make(chan struct{})
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go func() {
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c.Receive()
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close(done)
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}()
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time.Sleep(time.Millisecond)
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c.Send("PING")
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c.Flush()
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<-done
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_, err = c.Do("")
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if err != nil {
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t.Fatalf("error=%v", err)
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}
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}
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func TestError(t *testing.T) {
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c, err := DialDefaultServer()
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if err != nil {
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t.Fatalf("error connection to database, %v", err)
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}
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defer c.Close()
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c.Do("SET", "key", "val")
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_, err = c.Do("HSET", "key", "fld", "val")
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if err == nil {
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t.Errorf("Expected err for HSET on string key.")
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}
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if c.Err() != nil {
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t.Errorf("Conn has Err()=%v, expect nil", c.Err())
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}
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_, err = c.Do("SET", "key", "val")
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if err != nil {
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t.Errorf("Do(SET, key, val) returned error %v, expected nil.", err)
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}
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}
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func TestReadTimeout(t *testing.T) {
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l, err := net.Listen("tcp", "127.0.0.1:0")
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if err != nil {
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t.Fatalf("net.Listen returned %v", err)
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}
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defer l.Close()
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go func() {
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for {
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c, err1 := l.Accept()
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if err1 != nil {
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return
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}
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go func() {
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time.Sleep(time.Second)
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c.Write([]byte("+OK\r\n"))
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c.Close()
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}()
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}
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}()
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// Do
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c1, err := Dial(l.Addr().Network(), l.Addr().String(), DialReadTimeout(time.Millisecond))
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if err != nil {
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t.Fatalf("Dial returned %v", err)
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}
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defer c1.Close()
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_, err = c1.Do("PING")
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if err == nil {
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t.Fatalf("c1.Do() returned nil, expect error")
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}
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if c1.Err() == nil {
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t.Fatalf("c1.Err() = nil, expect error")
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}
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// Send/Flush/Receive
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c2, err := Dial(l.Addr().Network(), l.Addr().String(), DialReadTimeout(time.Millisecond))
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if err != nil {
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t.Fatalf("Dial returned %v", err)
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}
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defer c2.Close()
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c2.Send("PING")
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c2.Flush()
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_, err = c2.Receive()
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if err == nil {
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t.Fatalf("c2.Receive() returned nil, expect error")
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}
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if c2.Err() == nil {
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t.Fatalf("c2.Err() = nil, expect error")
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}
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}
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var dialErrors = []struct {
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rawurl string
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expectedError string
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}{
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{
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"localhost",
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"invalid redis URL scheme",
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},
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// The error message for invalid hosts is diffferent in different
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// versions of Go, so just check that there is an error message.
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{
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"redis://weird url",
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"",
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},
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{
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"redis://foo:bar:baz",
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"",
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},
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{
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"http://www.google.com",
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"invalid redis URL scheme: http",
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},
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{
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"redis://localhost:6379/abc123",
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"invalid database: abc123",
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},
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}
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func TestDialURLErrors(t *testing.T) {
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for _, d := range dialErrors {
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_, err := DialURL(d.rawurl)
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if err == nil || !strings.Contains(err.Error(), d.expectedError) {
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t.Errorf("DialURL did not return expected error (expected %v to contain %s)", err, d.expectedError)
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}
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}
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}
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func TestDialURLPort(t *testing.T) {
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checkPort := func(network, address string) (net.Conn, error) {
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if address != "localhost:6379" {
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t.Errorf("DialURL did not set port to 6379 by default (got %v)", address)
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}
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return nil, nil
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}
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_, err := DialURL("redis://localhost", DialNetDial(checkPort))
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if err != nil {
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t.Error("dial error:", err)
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}
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}
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func TestDialURLHost(t *testing.T) {
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checkHost := func(network, address string) (net.Conn, error) {
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if address != "localhost:6379" {
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t.Errorf("DialURL did not set host to localhost by default (got %v)", address)
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}
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return nil, nil
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}
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_, err := DialURL("redis://:6379", DialNetDial(checkHost))
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if err != nil {
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t.Error("dial error:", err)
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}
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}
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func TestDialURLPassword(t *testing.T) {
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var buf bytes.Buffer
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_, err := DialURL("redis://x:abc123@localhost", dialTestConn(strings.NewReader("+OK\r\n"), &buf))
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if err != nil {
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t.Error("dial error:", err)
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}
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expected := "*2\r\n$4\r\nAUTH\r\n$6\r\nabc123\r\n"
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actual := buf.String()
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if actual != expected {
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t.Errorf("commands = %q, want %q", actual, expected)
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}
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}
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func TestDialURLDatabase(t *testing.T) {
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var buf bytes.Buffer
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_, err := DialURL("redis://localhost/3", dialTestConn(strings.NewReader("+OK\r\n"), &buf))
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if err != nil {
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t.Error("dial error:", err)
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}
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expected := "*2\r\n$6\r\nSELECT\r\n$1\r\n3\r\n"
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actual := buf.String()
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if actual != expected {
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t.Errorf("commands = %q, want %q", actual, expected)
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}
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}
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// Connect to local instance of Redis running on the default port.
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func ExampleDial() {
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c, err := Dial("tcp", ":6379")
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if err != nil {
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// handle error
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}
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defer c.Close()
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}
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// Connect to remote instance of Redis using a URL.
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func ExampleDialURL() {
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c, err := DialURL(os.Getenv("REDIS_URL"))
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if err != nil {
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// handle connection error
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|
}
|
|
defer c.Close()
|
|
}
|
|
|
|
// TextExecError tests handling of errors in a transaction. See
|
|
// http://io/topics/transactions for information on how Redis handles
|
|
// errors in a transaction.
|
|
func TestExecError(t *testing.T) {
|
|
c, err := 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 := 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 = 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 := 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 := 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)
|
|
}
|
|
}
|
|
}
|