diff options
Diffstat (limited to 'vendor/github.com/garyburd/redigo/redis/conn_test.go')
| -rw-r--r-- | vendor/github.com/garyburd/redigo/redis/conn_test.go | 670 |
1 files changed, 670 insertions, 0 deletions
diff --git a/vendor/github.com/garyburd/redigo/redis/conn_test.go b/vendor/github.com/garyburd/redigo/redis/conn_test.go new file mode 100644 index 000000000..2ead63326 --- /dev/null +++ b/vendor/github.com/garyburd/redigo/redis/conn_test.go @@ -0,0 +1,670 @@ +// 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) + } + } +} |