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naza/pkg/bele/bele_test.go

333 lines
8.2 KiB
Go

// Copyright 2019, Chef. All rights reserved.
// https://github.com/q191201771/naza
//
// Use of this source code is governed by a MIT-style license
// that can be found in the License file.
//
// Author: Chef (191201771@qq.com)
package bele
import (
"bytes"
"encoding/binary"
"testing"
"github.com/q191201771/naza/pkg/assert"
)
func TestBeUint16(t *testing.T) {
vector := []struct {
input []byte
output uint16
}{
{input: []byte{0, 0}, output: 0},
{input: []byte{0, 1}, output: 1},
{input: []byte{0, 255}, output: 255},
{input: []byte{1, 0}, output: 256},
{input: []byte{255, 0}, output: 255 * 256},
{input: []byte{12, 34}, output: 12*256 + 34},
}
for i := 0; i < len(vector); i++ {
assert.Equal(t, vector[i].output, BeUint16(vector[i].input))
}
}
func TestBeUint24(t *testing.T) {
vector := []struct {
input []byte
output uint32
}{
{input: []byte{0, 0, 0}, output: 0},
{input: []byte{0, 0, 1}, output: 1},
{input: []byte{0, 1, 0}, output: 256},
{input: []byte{1, 0, 0}, output: 1 * 256 * 256},
{input: []byte{12, 34, 56}, output: 12*256*256 + 34*256 + 56},
}
for i := 0; i < len(vector); i++ {
assert.Equal(t, vector[i].output, BeUint24(vector[i].input))
}
}
func TestBeUint32(t *testing.T) {
vector := []struct {
input []byte
output uint32
}{
{input: []byte{0, 0, 0, 0}, output: 0},
{input: []byte{0, 0, 1, 0}, output: 1 * 256},
{input: []byte{0, 1, 0, 0}, output: 1 * 256 * 256},
{input: []byte{1, 0, 0, 0}, output: 1 * 256 * 256 * 256},
{input: []byte{12, 34, 56, 78}, output: 12*256*256*256 + 34*256*256 + 56*256 + 78},
}
for i := 0; i < len(vector); i++ {
assert.Equal(t, vector[i].output, BeUint32(vector[i].input))
}
}
func TestBeUint64(t *testing.T) {
vector := []struct {
input []byte
output uint64
}{
{input: []byte{0, 0, 0, 0, 0, 0, 0, 0}, output: 0},
{input: []byte{0, 0, 0, 0, 1, 0, 0, 0}, output: 1 * 256 * 256 * 256},
{input: []byte{0, 0, 0, 0, 12, 34, 56, 78}, output: 12*256*256*256 + 34*256*256 + 56*256 + 78},
{input: []byte{0, 12, 34, 56, 78, 0, 0, 0}, output: 12*256*256*256*256*256*256 + 34*256*256*256*256*256 + 56*256*256*256*256 + 78*256*256*256},
}
for i := 0; i < len(vector); i++ {
assert.Equal(t, vector[i].output, BeUint64(vector[i].input))
}
}
func TestBeFloat64(t *testing.T) {
vector := []int{
1,
0xFF,
0xFFFF,
0xFFFFFF,
}
for i := 0; i < len(vector); i++ {
b := &bytes.Buffer{}
err := binary.Write(b, binary.BigEndian, float64(vector[i]))
assert.Equal(t, nil, err)
assert.Equal(t, vector[i], int(BeFloat64(b.Bytes())))
}
}
func TestLeUint32(t *testing.T) {
vector := []struct {
input []byte
output uint32
}{
{input: []byte{0, 0, 0, 0}, output: 0},
{input: []byte{0, 0, 1, 0}, output: 1 * 256 * 256},
{input: []byte{0, 1, 0, 0}, output: 1 * 256},
{input: []byte{1, 0, 0, 0}, output: 1},
{input: []byte{12, 34, 56, 78}, output: 12 + 34*256 + 56*256*256 + 78*256*256*256},
}
for i := 0; i < len(vector); i++ {
assert.Equal(t, vector[i].output, LeUint32(vector[i].input))
}
}
func TestBePutUint16(t *testing.T) {
b := make([]byte, 2)
BePutUint16(b, 1)
assert.Equal(t, []byte{0, 1}, b)
}
func TestBePutUint64(t *testing.T) {
b := make([]byte, 8)
BePutUint64(b, 1)
assert.Equal(t, []byte{0, 0, 0, 0, 0, 0, 0, 1}, b)
}
func TestBePutUint24(t *testing.T) {
vector := []struct {
input uint32
output []byte
}{
{input: 0, output: []byte{0, 0, 0}},
{input: 1, output: []byte{0, 0, 1}},
{input: 256, output: []byte{0, 1, 0}},
{input: 1 * 256 * 256, output: []byte{1, 0, 0}},
{input: 12*256*256 + 34*256 + 56, output: []byte{12, 34, 56}},
}
out := make([]byte, 3)
for i := 0; i < len(vector); i++ {
BePutUint24(out, vector[i].input)
assert.Equal(t, vector[i].output, out)
}
}
func TestBePutUint32(t *testing.T) {
vector := []struct {
input uint32
output []byte
}{
{input: 0, output: []byte{0, 0, 0, 0}},
{input: 1 * 256, output: []byte{0, 0, 1, 0}},
{input: 1 * 256 * 256, output: []byte{0, 1, 0, 0}},
{input: 1 * 256 * 256 * 256, output: []byte{1, 0, 0, 0}},
{input: 12*256*256*256 + 34*256*256 + 56*256 + 78, output: []byte{12, 34, 56, 78}},
}
out := make([]byte, 4)
for i := 0; i < len(vector); i++ {
BePutUint32(out, vector[i].input)
assert.Equal(t, vector[i].output, out)
}
}
func TestLePutUint32(t *testing.T) {
vector := []struct {
input uint32
output []byte
}{
{input: 0, output: []byte{0, 0, 0, 0}},
{input: 1 * 256 * 256, output: []byte{0, 0, 1, 0}},
{input: 1 * 256, output: []byte{0, 1, 0, 0}},
{input: 1, output: []byte{1, 0, 0, 0}},
{input: 78*256*256*256 + 56*256*256 + 34*256 + 12, output: []byte{12, 34, 56, 78}},
}
out := make([]byte, 4)
for i := 0; i < len(vector); i++ {
LePutUint32(out, vector[i].input)
assert.Equal(t, vector[i].output, out)
}
}
func TestWriteBeUint24(t *testing.T) {
vector := []struct {
input uint32
output []byte
}{
{input: 0, output: []byte{0, 0, 0}},
{input: 1, output: []byte{0, 0, 1}},
{input: 256, output: []byte{0, 1, 0}},
{input: 1 * 256 * 256, output: []byte{1, 0, 0}},
{input: 12*256*256 + 34*256 + 56, output: []byte{12, 34, 56}},
}
for i := 0; i < len(vector); i++ {
out := &bytes.Buffer{}
err := WriteBeUint24(out, vector[i].input)
assert.Equal(t, nil, err)
assert.Equal(t, vector[i].output, out.Bytes())
}
}
func TestWriteBe(t *testing.T) {
vector := []struct {
input interface{}
output []byte
}{
{input: uint32(1), output: []byte{0, 0, 0, 1}},
{input: uint64(1), output: []byte{0, 0, 0, 0, 0, 0, 0, 1}},
}
for i := 0; i < len(vector); i++ {
out := &bytes.Buffer{}
err := WriteBe(out, vector[i].input)
assert.Equal(t, nil, err)
assert.Equal(t, vector[i].output, out.Bytes())
}
}
func TestWriteLe(t *testing.T) {
vector := []struct {
input interface{}
output []byte
}{
{input: uint32(1), output: []byte{1, 0, 0, 0}},
{input: uint64(1), output: []byte{1, 0, 0, 0, 0, 0, 0, 0}},
}
for i := 0; i < len(vector); i++ {
out := &bytes.Buffer{}
err := WriteLe(out, vector[i].input)
assert.Equal(t, nil, err)
assert.Equal(t, vector[i].output, out.Bytes())
}
}
func TestReadBytes(t *testing.T) {
var buf bytes.Buffer
buf.Write([]byte{'1', '2', '3'})
b, err := ReadBytes(&buf, 2)
assert.Equal(t, []byte{'1', '2'}, b)
assert.Equal(t, nil, err)
b, err = ReadBytes(&buf, 2)
assert.Equal(t, []byte{'3', 0}, b)
assert.IsNotNil(t, err)
b, err = ReadBytes(&buf, 2)
assert.Equal(t, nil, b)
assert.IsNotNil(t, err)
}
func TestRead(t *testing.T) {
var err error
b := &bytes.Buffer{}
_, err = ReadUint8(b)
assert.IsNotNil(t, err)
_, err = ReadBeUint16(b)
assert.IsNotNil(t, err)
_, err = ReadBeUint24(b)
assert.IsNotNil(t, err)
_, err = ReadBeUint32(b)
assert.IsNotNil(t, err)
_, err = ReadBeUint64(b)
assert.IsNotNil(t, err)
_, err = ReadLeUint32(b)
assert.IsNotNil(t, err)
b.Write([]byte{1})
i8, err := ReadUint8(b)
assert.Equal(t, uint8(1), i8)
assert.Equal(t, nil, err)
b.Write([]byte{1, 2})
i16, err := ReadBeUint16(b)
assert.Equal(t, BeUint16([]byte{1, 2}), i16)
assert.Equal(t, nil, err)
b.Write([]byte{1, 2, 3})
i24, err := ReadBeUint24(b)
assert.Equal(t, BeUint24([]byte{1, 2, 3}), i24)
assert.Equal(t, nil, err)
b.Write([]byte{1, 2, 3, 4})
i32, err := ReadBeUint32(b)
assert.Equal(t, BeUint32([]byte{1, 2, 3, 4}), i32)
assert.Equal(t, nil, err)
b.Write([]byte{1, 2, 3, 4, 5, 6, 7, 8})
i64, err := ReadBeUint64(b)
assert.Equal(t, BeUint64([]byte{1, 2, 3, 4, 5, 6, 7, 8}), i64)
assert.Equal(t, nil, err)
b.Write([]byte{1, 0, 0, 0})
i32, err = ReadLeUint32(b)
assert.Equal(t, uint32(1), i32)
assert.Equal(t, nil, err)
}
func TestReadString(t *testing.T) {
var buf bytes.Buffer
str, err := ReadString(&buf, 2)
assert.Equal(t, "", str)
assert.IsNotNil(t, err)
}
func BenchmarkBeFloat64(b *testing.B) {
buf := &bytes.Buffer{}
_ = binary.Write(buf, binary.BigEndian, float64(123.4))
for i := 0; i < b.N; i++ {
BeFloat64(buf.Bytes())
}
}
func BenchmarkBePutUint24(b *testing.B) {
out := make([]byte, 3)
for i := 0; i < b.N; i++ {
BePutUint24(out, uint32(i))
}
}
func BenchmarkBeUint24(b *testing.B) {
buf := []byte{1, 2, 3}
for i := 0; i < b.N; i++ {
BeUint24(buf)
}
}
func BenchmarkWriteBe(b *testing.B) {
out := &bytes.Buffer{}
in := uint64(123)
for i := 0; i < b.N; i++ {
_ = WriteBe(out, in)
}
}