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server to only manage tcp/unix socket
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yowcow
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May 28, 2018
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,155 +1,71 @@ | ||
| package server | ||
|
|
||
| import ( | ||
| "bufio" | ||
| "bytes" | ||
| "fmt" | ||
| "io" | ||
| "log" | ||
| "net" | ||
| "os" | ||
| "path/filepath" | ||
| "testing" | ||
|
|
||
| "github.com/stretchr/testify/assert" | ||
| "github.com/yowcow/goromdb/handler/simplehandler" | ||
| "github.com/yowcow/goromdb/protocol" | ||
| "github.com/yowcow/goromdb/storage" | ||
| "github.com/yowcow/goromdb/testutil" | ||
| ) | ||
|
|
||
| type TestKeywords map[string][][]byte | ||
|
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| type TestProtocol struct { | ||
| keywords TestKeywords | ||
| } | ||
|
|
||
| func createTestProtocol() protocol.Protocol { | ||
| keywords := TestKeywords{ | ||
| "hoge": {[]byte("foo"), []byte("bar")}, | ||
| } | ||
| return &TestProtocol{keywords} | ||
| } | ||
|
|
||
| func (p TestProtocol) Parse(line []byte) ([][]byte, error) { | ||
| if words, ok := p.keywords[string(line)]; ok { | ||
| return words, nil | ||
| } | ||
| return [][]byte{}, fmt.Errorf("invalid command") | ||
| } | ||
|
|
||
| func (p TestProtocol) Reply(w io.Writer, key, value []byte) { | ||
| w.Write(key) | ||
| w.Write([]byte(" ")) | ||
| w.Write(value) | ||
| w.Write([]byte("\r\n")) | ||
| } | ||
|
|
||
| func (p TestProtocol) Finish(w io.Writer) { | ||
| w.Write([]byte("BYE\r\n")) | ||
| } | ||
|
|
||
| type TestData map[string]string | ||
|
|
||
| type TestStorage struct { | ||
| data TestData | ||
| logger *log.Logger | ||
| } | ||
|
|
||
| func createTestStorage(logger *log.Logger) storage.Storage { | ||
| data := TestData{ | ||
| "foo": "foo!", | ||
| "bar": "bar!!", | ||
| } | ||
| return &TestStorage{data, logger} | ||
| } | ||
|
|
||
| func (s TestStorage) Load(file string) error { | ||
| return nil | ||
| } | ||
|
|
||
| func (s TestStorage) Get(key []byte) ([]byte, error) { | ||
| if v, ok := s.data[string(key)]; ok { | ||
| return []byte(v), nil | ||
| } | ||
| return nil, storage.KeyNotFoundError(key) | ||
| } | ||
|
|
||
| func TestHandleConn(t *testing.T) { | ||
| dir := testutil.CreateTmpDir() | ||
| defer os.RemoveAll(dir) | ||
|
|
||
| logbuf := new(bytes.Buffer) | ||
| logger := log.New(logbuf, "", 0) | ||
| p := createTestProtocol() | ||
| stg := createTestStorage(logger) | ||
| h := simplehandler.New(stg, logger) | ||
|
|
||
| sock := filepath.Join(dir, "test.sock") | ||
| svr := New("unix", sock, p, h, logger) | ||
|
|
||
| done := make(chan bool) | ||
| ln, err := net.Listen("unix", sock) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| go func() { | ||
| defer close(done) | ||
| for { | ||
| conn, err := ln.Accept() | ||
| if err != nil { | ||
| break | ||
| } | ||
| svr.HandleConn(conn) | ||
| } | ||
| }() | ||
| svr := New("unix", sock, logger) | ||
|
|
||
| type Case struct { | ||
| input string | ||
| expected []string | ||
| subtest string | ||
| subtest string | ||
| input []byte | ||
| expectedLine []byte | ||
| } | ||
| cases := []Case{ | ||
| { | ||
| "hoge\r\n", | ||
| []string{ | ||
| "foo foo!", | ||
| "bar bar!!", | ||
| "BYE", | ||
| }, | ||
| "hoge returns 3 lines of message", | ||
| }, | ||
| { | ||
| "fuga\r\n", | ||
| []string{ | ||
| "BYE", | ||
| }, | ||
| "fuga returns 1 line of message", | ||
| "a line that end with \\r\\n", | ||
| []byte("hello world\r\n"), | ||
| []byte("hello world"), | ||
| }, | ||
| } | ||
|
|
||
| for _, c := range cases { | ||
| t.Run(c.subtest, func(t *testing.T) { | ||
| conn, err := net.Dial("unix", sock) | ||
| if err != nil { | ||
| panic(err) | ||
| done := make(chan bool) | ||
|
|
||
| ln, err := net.Listen("unix", sock) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| go func() { | ||
| defer close(done) | ||
| for { | ||
| conn, err := ln.Accept() | ||
| if err != nil { | ||
| return | ||
| } | ||
| svr.HandleConn(conn, OnReadCallbackFunc(func(conn net.Conn, line []byte, logger *log.Logger) { | ||
| assert.Equal(t, c.expectedLine, line) | ||
| })) | ||
| } | ||
| defer conn.Close() | ||
| }() | ||
|
|
||
| r := bufio.NewReader(conn) | ||
| _, err = conn.Write([]byte(c.input)) | ||
| conn, err := net.Dial("unix", sock) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| assert.Nil(t, err) | ||
| _, err = conn.Write(c.input) | ||
|
|
||
| for _, row := range c.expected { | ||
| actual, _, err := r.ReadLine() | ||
| conn.Close() | ||
| ln.Close() | ||
| <-done | ||
|
|
||
| assert.Nil(t, err) | ||
| assert.Equal(t, row, string(actual)) | ||
| } | ||
| }) | ||
| assert.Nil(t, err) | ||
| } | ||
|
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||
| ln.Close() | ||
| <-done | ||
| } |