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|
package eventstream
import (
"bytes"
"encoding/hex"
"io/ioutil"
"os"
"reflect"
"testing"
)
func TestWriteEncodedFromDecoded(t *testing.T) {
cases, err := readPositiveTests("testdata")
if err != nil {
t.Fatalf("failed to load positive tests, %v", err)
}
for _, c := range cases {
f, err := ioutil.TempFile(os.TempDir(), "encoded_positive_"+c.Name)
if err != nil {
t.Fatalf("failed to open %q, %v", c.Name, err)
}
encoder := NewEncoder()
msg := c.Decoded.Message()
if err := encoder.Encode(f, msg); err != nil {
t.Errorf("failed to encode %q, %v", c.Name, err)
}
if err = f.Close(); err != nil {
t.Errorf("expected %v, got %v", "no error", err)
}
if err = os.Remove(f.Name()); err != nil {
t.Errorf("expected %v, got %v", "no error", err)
}
}
}
func TestDecoder_Decode(t *testing.T) {
cases, err := readPositiveTests("testdata")
if err != nil {
t.Fatalf("failed to load positive tests, %v", err)
}
for _, c := range cases {
decoder := NewDecoder()
msg, err := decoder.Decode(bytes.NewBuffer(c.Encoded), nil)
if err != nil {
t.Fatalf("%s, expect no decode error, got %v", c.Name, err)
}
raw, err := msg.rawMessage() // rawMessage will fail if payload read CRC fails
if err != nil {
t.Fatalf("%s, failed to get raw decoded message %v", c.Name, err)
}
if e, a := c.Decoded.Length, raw.Length; e != a {
t.Errorf("%s, expect %v length, got %v", c.Name, e, a)
}
if e, a := c.Decoded.HeadersLen, raw.HeadersLen; e != a {
t.Errorf("%s, expect %v HeadersLen, got %v", c.Name, e, a)
}
if e, a := c.Decoded.PreludeCRC, raw.PreludeCRC; e != a {
t.Errorf("%s, expect %v PreludeCRC, got %v", c.Name, e, a)
}
if e, a := Headers(c.Decoded.Headers), msg.Headers; !reflect.DeepEqual(e, a) {
t.Errorf("%s, expect %v headers, got %v", c.Name, e, a)
}
if e, a := c.Decoded.Payload, raw.Payload; !bytes.Equal(e, a) {
t.Errorf("%s, expect %v payload, got %v", c.Name, e, a)
}
if e, a := c.Decoded.CRC, raw.CRC; e != a {
t.Errorf("%s, expect %v CRC, got %v", c.Name, e, a)
}
}
}
func TestDecoder_Decode_Negative(t *testing.T) {
cases, err := readNegativeTests("testdata")
if err != nil {
t.Fatalf("failed to load negative tests, %v", err)
}
for _, c := range cases {
decoder := NewDecoder()
msg, err := decoder.Decode(bytes.NewBuffer(c.Encoded), nil)
if err == nil {
rawMsg, rawMsgErr := msg.rawMessage()
t.Fatalf("%s, expect error, got none, %s,\n%s\n%#v, %v\n", c.Name,
c.Err, hex.Dump(c.Encoded), rawMsg, rawMsgErr)
}
}
}
var testEncodedMsg = []byte{0, 0, 0, 61, 0, 0, 0, 32, 7, 253, 131, 150, 12, 99, 111, 110, 116, 101, 110, 116, 45, 116, 121, 112, 101, 7, 0, 16, 97, 112, 112, 108, 105, 99, 97, 116, 105, 111, 110, 47, 106, 115, 111, 110, 123, 39, 102, 111, 111, 39, 58, 39, 98, 97, 114, 39, 125, 141, 156, 8, 177}
func TestDecoder_DecodeMultipleMessages(t *testing.T) {
const (
expectMsgCount = 10
expectPayloadLen = 13
)
r := bytes.NewBuffer(nil)
for i := 0; i < expectMsgCount; i++ {
r.Write(testEncodedMsg)
}
decoder := NewDecoder()
var err error
var msg Message
var count int
for {
msg, err = decoder.Decode(r, nil)
if err != nil {
break
}
count++
if e, a := expectPayloadLen, len(msg.Payload); e != a {
t.Errorf("expect %v payload len, got %v", e, a)
}
if e, a := []byte(`{'foo':'bar'}`), msg.Payload; !bytes.Equal(e, a) {
t.Errorf("expect %v payload, got %v", e, a)
}
}
type causer interface {
Cause() error
}
if err != nil && count != expectMsgCount {
t.Fatalf("expect, no error, got %v", err)
}
if e, a := expectMsgCount, count; e != a {
t.Errorf("expect %v messages read, got %v", e, a)
}
}
func BenchmarkDecode(b *testing.B) {
r := bytes.NewReader(testEncodedMsg)
decoder := NewDecoder()
payloadBuf := make([]byte, 0, 5*1024)
b.ResetTimer()
for i := 0; i < b.N; i++ {
msg, err := decoder.Decode(r, payloadBuf)
if err != nil {
b.Fatal(err)
}
// Release the payload buffer
payloadBuf = msg.Payload[0:0]
r.Seek(0, 0)
}
}
func BenchmarkDecode_NoPayloadBuf(b *testing.B) {
r := bytes.NewReader(testEncodedMsg)
decoder := NewDecoder()
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, err := decoder.Decode(r, nil)
if err != nil {
b.Fatal(err)
}
r.Seek(0, 0)
}
}
|
