forked from alecthomas/binary
/
binary_test.go
392 lines (329 loc) · 6.5 KB
/
binary_test.go
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package binary
import (
"bytes"
"errors"
"fmt"
"io"
"reflect"
"testing"
"time"
"github.com/stretchrcom/testify/assert"
)
type s0 struct {
A string
B string
C int16
}
var (
s0v = &s0{"A", "B", 1}
s0b = []byte{0x1, 0x41, 0x1, 0x42, 0x1, 0x0}
)
func TestBinaryEncodeStruct(t *testing.T) {
b, err := Marshal(s0v)
assert.NoError(t, err)
assert.Equal(t, s0b, b)
}
func TestBinaryDecodeStruct(t *testing.T) {
s := &s0{}
err := Unmarshal(s0b, s)
assert.NoError(t, err)
assert.Equal(t, s0v, s)
}
func TestBinaryDecodeToValueErrors(t *testing.T) {
b := []byte{1, 0, 0, 0}
var v uint32
err := Unmarshal(b, v)
assert.Error(t, err)
err = Unmarshal(b, &v)
assert.NoError(t, err)
assert.Equal(t, uint32(1), v)
}
type s1 struct {
Name string
BirthDay time.Time
Phone string
Siblings int
Spouse bool
Money float64
Tags map[string]string
Aliases []string
}
var (
s1v = &s1{
Name: "Bob Smith",
BirthDay: time.Date(2013, 1, 2, 3, 4, 5, 6, time.UTC),
Phone: "5551234567",
Siblings: 2,
Spouse: false,
Money: 100.0,
Tags: map[string]string{"key": "value"},
Aliases: []string{"Bobby", "Robert"},
}
svb = []byte{0x9, 0x42, 0x6f, 0x62, 0x20, 0x53, 0x6d, 0x69, 0x74, 0x68, 0xf,
0x1, 0x0, 0x0, 0x0, 0xe, 0xc8, 0x75, 0x9a, 0xa5, 0x0, 0x0, 0x0, 0x6, 0xff,
0xff, 0xa, 0x35, 0x35, 0x35, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x2,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x59,
0x40, 0x1, 0x3, 0x6b, 0x65, 0x79, 0x5, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x2, 0x5,
0x42, 0x6f, 0x62, 0x62, 0x79, 0x6, 0x52, 0x6f, 0x62, 0x65, 0x72, 0x74}
)
func TestBinaryEncodeComplex(t *testing.T) {
b, err := Marshal(s1v)
assert.NoError(t, err)
assert.Equal(t, svb, b)
s := &s1{}
err = Unmarshal(svb, s)
assert.NoError(t, err)
assert.Equal(t, s1v, s)
}
type s2 struct {
b []byte
}
func (s *s2) UnmarshalBinary(data []byte) error {
if len(data) != 1 {
return errors.New("expected data to be length 1")
}
s.b = data
return nil
}
func (s *s2) MarshalBinary() (data []byte, err error) {
return s.b, nil
}
func TestBinaryMarshalUnMarshaler(t *testing.T) {
s2v := &s2{[]byte{0x13}}
b, err := Marshal(s2v)
assert.NoError(t, err)
assert.Equal(t, []byte{0x1, 0x13}, b)
}
func TestMarshalUnMarshalTypeAliases(t *testing.T) {
type Foo int64
f := Foo(32)
b, err := Marshal(f)
assert.NoError(t, err)
assert.Equal(t, []byte{0x20, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, b)
}
func TestStructWithStruct(t *testing.T) {
type T1 struct {
ID uint64
Name string
Slice []int
}
type T2 uint64
type Struct struct {
V1 T1
V2 T2
V3 T1
}
s := Struct{V1: T1{1, "1", []int{1}}, V2: 2, V3: T1{3, "3", []int{3}}}
buf := new(bytes.Buffer)
enc := NewEncoder(buf)
err := enc.Encode(&s)
if err != nil {
t.Fatalf("error: %v\n", err)
}
v := Struct{}
dec := NewDecoder(buf)
err = dec.Decode(&v)
if err != nil {
t.Fatalf("error: %v\n", err)
}
if !reflect.DeepEqual(s, v) {
t.Fatalf("got= %#v\nwant=%#v\n", v, s)
}
}
func TestStructWithEmbeddedStruct(t *testing.T) {
type T1 struct {
ID uint64
Name string
Slice []int
}
type T2 uint64
type Struct struct {
T1
V2 T2
V3 T1
}
s := Struct{T1: T1{1, "1", []int{1}}, V2: 2, V3: T1{3, "3", []int{3}}}
buf := new(bytes.Buffer)
enc := NewEncoder(buf)
err := enc.Encode(&s)
if err != nil {
t.Fatalf("error: %v\n", err)
}
v := Struct{}
dec := NewDecoder(buf)
err = dec.Decode(&v)
if err != nil {
t.Fatalf("error: %v\n", err)
}
if !reflect.DeepEqual(s, v) {
t.Fatalf("got= %#v\nwant=%#v\n", v, s)
}
}
func TestArrayOfStructWithStruct(t *testing.T) {
type T1 struct {
ID uint64
Name string
Slice []int
}
type T2 uint64
type Struct struct {
V1 T1
V2 T2
V3 T1
}
s := [1]Struct{
{V1: T1{1, "1", []int{1}}, V2: 2, V3: T1{3, "3", []int{3}}},
}
buf := new(bytes.Buffer)
enc := NewEncoder(buf)
err := enc.Encode(&s)
if err != nil {
t.Fatalf("error: %v\n", err)
}
v := [1]Struct{}
dec := NewDecoder(buf)
err = dec.Decode(&v)
if err != nil {
t.Fatalf("error: %v\n", err)
}
if !reflect.DeepEqual(s, v) {
t.Fatalf("got= %#v\nwant=%#v\n", v, s)
}
}
func TestSliceOfStructWithStruct(t *testing.T) {
type T1 struct {
ID uint64
Name string
Slice []int
}
type T2 uint64
type Struct struct {
V1 T1
V2 T2
V3 T1
}
s := []Struct{
{V1: T1{1, "1", []int{1}}, V2: 2, V3: T1{3, "3", []int{3}}},
}
buf := new(bytes.Buffer)
enc := NewEncoder(buf)
err := enc.Encode(&s)
if err != nil {
t.Fatalf("error: %v\n", err)
}
v := []Struct{}
dec := NewDecoder(buf)
err = dec.Decode(&v)
if err != nil {
t.Fatalf("error: %v\n", err)
}
if !reflect.DeepEqual(s, v) {
t.Fatalf("got= %#v\nwant=%#v\n", v, s)
}
}
func BenchmarkEncodeStructI1(b *testing.B) {
type Struct struct {
S struct {
I int64
}
}
var s Struct
s.S.I = 1024
buf := new(bytes.Buffer)
b.ResetTimer()
for i := 0; i < b.N; i++ {
enc := NewEncoder(buf)
_ = enc.Encode(&s)
}
}
func BenchmarkEncodeStructI2(b *testing.B) {
type Struct struct {
S struct {
I int64
}
}
var s Struct
s.S.I = 1024
buf := new(bytes.Buffer)
enc := NewEncoder(buf)
b.ResetTimer()
for i := 0; i < b.N; i++ {
_ = enc.Encode(&s)
}
}
func BenchmarkEncodeStructI3(b *testing.B) {
type Struct struct {
S struct {
I int64
}
}
var s Struct
s.S.I = 1024
buf := new(bytes.Buffer)
enc := NewEncoder(buf)
b.ResetTimer()
for i := 0; i < b.N; i++ {
err := enc.Encode(&s)
if err != nil {
b.Fatalf("error: %v\n", err)
}
}
}
type bufferT struct {
buf []byte
}
func (buf *bufferT) Read(data []byte) (int, error) {
n := copy(data, buf.buf)
if n != len(data) {
panic(fmt.Errorf("read too few bytes. got=%d want=%d", n, len(data)))
}
return n, nil
}
func getTestBuffer(b *testing.B) io.Reader {
return &bufferT{
buf: []byte{0, 4, 0, 0, 0, 0, 0, 0},
}
}
func BenchmarkDecodeStructI1(b *testing.B) {
type Struct struct {
I int64
}
var s Struct
buf := getTestBuffer(b)
b.ResetTimer()
for i := 0; i < b.N; i++ {
dec := NewDecoder(buf)
_ = dec.Decode(&s)
}
}
func BenchmarkDecodeStructI2(b *testing.B) {
type Struct struct {
S struct {
I int64
}
}
var s Struct
buf := getTestBuffer(b)
dec := NewDecoder(buf)
b.ResetTimer()
for i := 0; i < b.N; i++ {
_ = dec.Decode(&s)
}
}
func BenchmarkDecodeStructI3(b *testing.B) {
type Struct struct {
S struct {
I int64
}
}
var s Struct
buf := getTestBuffer(b)
dec := NewDecoder(buf)
b.ResetTimer()
for i := 0; i < b.N; i++ {
err := dec.Decode(&s)
if err != nil {
b.Fatalf("error: %v\n", err)
}
}
}