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minibuf_test.go
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minibuf_test.go
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package crunch
import (
"testing"
"github.com/google/go-cmp/cmp"
)
/*
utilities
*/
var MiniBufferComparer = cmp.Comparer(func(x, y *MiniBuffer) bool {
return cmp.Equal(x.buf, y.buf) &&
x.off == y.off &&
x.cap == y.cap &&
x.boff == y.boff &&
x.bcap == y.bcap
})
/*
tests
*/
func TestNewMiniBuffer(t *testing.T) {
var (
expected1 = &MiniBuffer{
buf: []byte{0x00, 0x00, 0x00, 0x00},
off: 0x00,
cap: 4,
boff: 0x00,
bcap: 32,
}
expected2 = &MiniBuffer{
buf: []byte{},
off: 0x00,
cap: 0,
boff: 0x00,
bcap: 0,
}
expected3 = &MiniBuffer{
buf: []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
off: 0x00,
cap: 8,
boff: 0x00,
bcap: 64,
}
)
out := &MiniBuffer{}
NewMiniBuffer(&out, []byte{0x00, 0x00, 0x00, 0x00})
if !cmp.Equal(expected1, out, MiniBufferComparer) {
t.Fatalf("expected minibuffer does not match the one gotten (got %#v, expected %#v)", out, expected1)
}
NewMiniBuffer(&out)
if !cmp.Equal(expected2, out, MiniBufferComparer) {
t.Fatalf("expected minibuffer does not match the one gotten (got %#v, expected %#v)", out, expected2)
}
NewMiniBuffer(&out, []byte{0x00, 0x00, 0x00, 0x00}, []byte{0x00, 0x00, 0x00, 0x00})
if !cmp.Equal(expected3, out, MiniBufferComparer) {
t.Fatalf("expected minibuffer does not match the one gotten (got %#v, expected %#v)", out, expected3)
}
}
func TestMiniBufferBytes(t *testing.T) {
var expected = []byte{0x01, 0x02, 0x03, 0x04}
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x01, 0x02, 0x03, 0x04})
out := []byte{}
buf.Bytes(&out)
if !cmp.Equal(expected, out) {
t.Fatalf("expected byte array does not match the one gotten (got %#v, expected %#v)", out, expected)
}
}
func TestMiniBufferByteCapacity(t *testing.T) {
var expected int64 = 4
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
var out int64
buf.ByteCapacity(&out)
if expected != out {
t.Fatalf("expected int64 does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferBitCapacity(t *testing.T) {
var expected int64 = 32
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
var out int64
buf.BitCapacity(&out)
if expected != out {
t.Fatalf("expected int64 does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferByteOffset(t *testing.T) {
var expected int64 = 0x02
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.SeekByte(0x02, false)
var out int64
buf.ByteOffset(&out)
if expected != out {
t.Fatalf("expected int64 does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferBitOffset(t *testing.T) {
var expected int64 = 0x0f
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.SeekBit(0x0f, false)
var out int64
buf.BitOffset(&out)
if expected != out {
t.Fatalf("expected int64 does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferRefresh(t *testing.T) {
var (
expected1 int64 = 4
expected2 int64 = 32
)
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.Refresh()
if expected1 != buf.cap || expected2 != buf.bcap {
t.Fatalf("expected int64(s) do not match the ones gotten (got %d and %d, expected %d and %d)", buf.cap, buf.bcap, expected1, expected2)
}
}
func TestMiniBufferReset(t *testing.T) {
var expected = []byte{}
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.Reset()
if !cmp.Equal(expected, buf.buf) {
t.Fatalf("expected byte array does not match the one gotten (got %#v, expected %#v)", buf.buf, expected)
}
}
func TestMiniBufferGrow(t *testing.T) {
var expected int64 = 4
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00})
buf.Grow(2)
var out int64
buf.ByteCapacity(&out)
if expected != out {
t.Fatalf("expected int64 does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferSeekByte(t *testing.T) {
var expected int64 = 0x04
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.SeekByte(2, true)
buf.SeekByte(2, true)
var out int64
buf.ByteOffset(&out)
if expected != out {
t.Fatalf("expected int64 does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferSeekBit(t *testing.T) {
var expected int64 = 0x20
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.SeekBit(16, true)
buf.SeekBit(16, true)
var out int64
buf.BitOffset(&out)
if expected != out {
t.Fatalf("expected int64 does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferAlignBit(t *testing.T) {
var expected int64 = 0x20
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.SeekByte(0x04, false)
buf.AlignBit()
var out int64
buf.BitOffset(&out)
if expected != out {
t.Fatalf("expected int64 does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferAlignByte(t *testing.T) {
var expected int64 = 0x04
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.SeekBit(0x20, false)
buf.AlignByte()
var out int64
buf.ByteOffset(&out)
if expected != out {
t.Fatalf("expected int64 does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferAfterByte(t *testing.T) {
var expected int64 = 2
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
var out int64
buf.SeekByte(0x01, false)
buf.AfterByte(&out)
if expected != out {
t.Fatalf("expected int64 does not match the one gotten (got %d, expected %d)", out, expected)
}
buf.AfterByte(&out, 0x01)
if expected != out {
t.Fatalf("expected int64 does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferAfterBit(t *testing.T) {
var expected int64 = 16
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
var out int64
buf.SeekBit(0x0f, false)
buf.AfterBit(&out)
if expected != out {
t.Fatalf("expected int64 does not match the one gotten (got %d, expected %d)", out, expected)
}
buf.AfterBit(&out, 0x0f)
if expected != out {
t.Fatalf("expected int64 does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferReadBytes(t *testing.T) {
var expected = []byte{0x03, 0x04}
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x01, 0x02, 0x03, 0x04})
var out []byte
buf.ReadBytes(&out, 0x02, 2)
if !cmp.Equal(expected, out) {
t.Fatalf("expected byte array does not match the one gotten (got %#v, expected %#v)", out, expected)
}
}
func TestMiniBufferReadBytesNext(t *testing.T) {
var expected = []byte{0x01, 0x02}
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x01, 0x02, 0x03, 0x04})
var out []byte
buf.ReadBytesNext(&out, 2)
if !cmp.Equal(expected, out) {
t.Fatalf("expected byte array does not match the one gotten (got %#v, expected %#v)", out, expected)
}
}
func TestMiniBufferReadUNEN(t *testing.T) {
var (
expected1 = []uint16{0x01}
expected2 = []uint16{0x100}
expected3 = []uint32{0x01}
expected4 = []uint32{0x1000000}
expected5 = []uint64{0x01}
expected6 = []uint64{0x100000000000000}
)
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})
out1 := []uint16{0x00}
buf.ReadU16LE(&out1, 0x00, 1)
if !cmp.Equal(out1, expected1) {
t.Fatalf("expected uint16 array does not match the one gotten (got %#v, expected %#v)", out1, expected1)
}
buf.ReadU16BE(&out1, 0x00, 1)
if !cmp.Equal(out1, expected2) {
t.Fatalf("expected uint16 array does not match the one gotten (got %#v, expected %#v)", out1, expected2)
}
out2 := []uint32{0x00}
buf.ReadU32LE(&out2, 0x00, 1)
if !cmp.Equal(out2, expected3) {
t.Fatalf("expected uint32 array does not match the one gotten (got %#v, expected %#v)", out2, expected3)
}
buf.ReadU32BE(&out2, 0x00, 1)
if !cmp.Equal(out2, expected4) {
t.Fatalf("expected uint32 array does not match the one gotten (got %#v, expected %#v)", out2, expected4)
}
out3 := []uint64{0x00}
buf.ReadU64LE(&out3, 0x00, 1)
if !cmp.Equal(out3, expected5) {
t.Fatalf("expected uint64 array does not match the one gotten (got %#v, expected %#v)", out3, expected5)
}
buf.ReadU64BE(&out3, 0x00, 1)
if !cmp.Equal(out3, expected6) {
t.Fatalf("expected uint64 array does not match the one gotten (got %#v, expected %#v)", out3, expected6)
}
}
func TestMiniBufferReadUNENNext(t *testing.T) {
var (
expected1 = []uint16{0x01}
expected2 = []uint16{0x100}
expected3 = []uint32{0x01}
expected4 = []uint32{0x1000000}
expected5 = []uint64{0x01}
expected6 = []uint64{0x100000000000000}
)
var off int64
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})
out1 := []uint16{0x00}
buf.ReadU16LENext(&out1, 1)
if !cmp.Equal(out1, expected1) {
t.Fatalf("expected uint16 array does not match the one gotten (got %#v, expected %#v)", out1, expected1)
}
buf.ByteOffset(&off)
if off != 2 {
t.Fatalf("incorrect offset: %d", off)
}
buf.SeekByte(0x00, false)
buf.ReadU16BENext(&out1, 1)
if !cmp.Equal(out1, expected2) {
t.Fatalf("expected uint16 array does not match the one gotten (got %#v, expected %#v)", out1, expected2)
}
buf.ByteOffset(&off)
if off != 2 {
t.Fatalf("incorrect offset: %d", off)
}
buf.SeekByte(0x00, false)
out2 := []uint32{0x00}
buf.ReadU32LENext(&out2, 1)
if !cmp.Equal(out2, expected3) {
t.Fatalf("expected uint32 array does not match the one gotten (got %#v, expected %#v)", out2, expected3)
}
buf.ByteOffset(&off)
if off != 4 {
t.Fatalf("incorrect offset: %d", off)
}
buf.SeekByte(0x00, false)
buf.ReadU32BENext(&out2, 1)
if !cmp.Equal(out2, expected4) {
t.Fatalf("expected uint32 array does not match the one gotten (got %#v, expected %#v)", out2, expected4)
}
buf.ByteOffset(&off)
if off != 4 {
t.Fatalf("incorrect offset: %d", off)
}
buf.SeekByte(0x00, false)
out3 := []uint64{0x00}
buf.ReadU64LENext(&out3, 1)
if !cmp.Equal(out3, expected5) {
t.Fatalf("expected uint64 array does not match the one gotten (got %#v, expected %#v)", out3, expected5)
}
buf.ByteOffset(&off)
if off != 8 {
t.Fatalf("incorrect offset: %d", off)
}
buf.SeekByte(0x00, false)
buf.ReadU64BENext(&out3, 1)
if !cmp.Equal(out3, expected6) {
t.Fatalf("expected uint64 array does not match the one gotten (got %#v, expected %#v)", out3, expected6)
}
buf.ByteOffset(&off)
if off != 8 {
t.Fatalf("incorrect offset: %d", off)
}
buf.SeekByte(0x00, false)
}
func TestMiniBufferWriteBytes(t *testing.T) {
var expected = []byte{0x01, 0x02}
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.WriteBytes(0x02, []byte{0x01, 0x02})
var out []byte
buf.ReadBytes(&out, 0x02, 2)
if !cmp.Equal(expected, out) {
t.Fatalf("expected byte array does not match the one gotten (got %#v, expected %#v)", out, expected)
}
}
func TestMiniBufferWriteBytesNext(t *testing.T) {
var expected = []byte{0x01, 0x02}
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.WriteBytesNext([]byte{0x01, 0x02})
var out []byte
buf.ReadBytes(&out, 0x00, 2)
if !cmp.Equal(expected, out) {
t.Fatalf("expected byte array does not match the one gotten (got %#v, expected %#v)", out, expected)
}
}
func TestMiniBufferWriteUNEN(t *testing.T) {
var (
expected byte = 0x01
out []byte
)
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})
buf.WriteU16LE(0x00, []uint16{0x01, 0x01})
buf.ReadBytes(&out, 0x00, 1)
if expected != out[0] {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out[0], expected)
}
buf.ReadBytes(&out, 0x02, 1)
if expected != out[0] {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out[0], expected)
}
buf.WriteU16BE(0x00, []uint16{0x100, 0x100})
buf.ReadBytes(&out, 0x00, 1)
if expected != out[0] {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out[0], expected)
}
buf.ReadBytes(&out, 0x02, 1)
if expected != out[0] {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out[0], expected)
}
buf.WriteU32LE(0x00, []uint32{0x01})
buf.ReadBytes(&out, 0x00, 1)
if expected != out[0] {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out[0], expected)
}
buf.WriteU32BE(0x00, []uint32{0x1000000})
buf.ReadBytes(&out, 0x00, 1)
if expected != out[0] {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out[0], expected)
}
buf.WriteU64LE(0x00, []uint64{0x01})
buf.ReadBytes(&out, 0x00, 1)
if expected != out[0] {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out[0], expected)
}
buf.WriteU64BE(0x00, []uint64{0x100000000000000})
buf.ReadBytes(&out, 0x00, 1)
if expected != out[0] {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out[0], expected)
}
}
func TestMiniBufferWriteUNENNext(t *testing.T) {
var (
expected byte = 0x01
out []byte
off int64
)
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})
buf.WriteU16LENext([]uint16{0x01})
buf.ReadBytes(&out, 0x00, 1)
if expected != out[0] {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out[0], expected)
}
buf.ByteOffset(&off)
if off != 2 {
t.Fatalf("incorrect offset: %d", off)
}
buf.SeekByte(0x00, false)
buf.WriteU16BENext([]uint16{0x100})
buf.ReadBytes(&out, 0x00, 1)
if expected != out[0] {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out[0], expected)
}
buf.ByteOffset(&off)
if off != 2 {
t.Fatalf("incorrect offset: %d", off)
}
buf.SeekByte(0x00, false)
buf.WriteU32LENext([]uint32{0x01})
buf.ReadBytes(&out, 0x00, 1)
if expected != out[0] {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out[0], expected)
}
buf.ByteOffset(&off)
if off != 4 {
t.Fatalf("incorrect offset: %d", off)
}
buf.SeekByte(0x00, false)
buf.WriteU32BENext([]uint32{0x1000000})
buf.ReadBytes(&out, 0x00, 1)
if expected != out[0] {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out[0], expected)
}
buf.ByteOffset(&off)
if off != 4 {
t.Fatalf("incorrect offset: %d", off)
}
buf.SeekByte(0x00, false)
buf.WriteU64LENext([]uint64{0x01})
buf.ReadBytes(&out, 0x00, 1)
if expected != out[0] {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out[0], expected)
}
buf.ByteOffset(&off)
if off != 8 {
t.Fatalf("incorrect offset: %d", off)
}
buf.SeekByte(0x00, false)
buf.WriteU64BENext([]uint64{0x100000000000000})
buf.ReadBytes(&out, 0x00, 1)
if expected != out[0] {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out[0], expected)
}
buf.ByteOffset(&off)
if off != 8 {
t.Fatalf("incorrect offset: %d", off)
}
buf.SeekByte(0x00, false)
}
func TestMiniBufferReadBit(t *testing.T) {
var expected byte = 1
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x01, 0x00, 0x00, 0x00})
var out byte
buf.ReadBit(&out, 0x07)
if expected != out {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferReadBitNext(t *testing.T) {
var expected byte = 1
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0xff, 0x00, 0x00, 0x00})
var out byte
buf.ReadBitNext(&out)
if expected != out {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferReadBits(t *testing.T) {
var expected uint64 = 5
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x0d, 0x00, 0x00, 0x00})
var out uint64
buf.ReadBits(&out, 0x05, 3)
if expected != out {
t.Fatalf("expected uint64 does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferReadBitsNext(t *testing.T) {
var expected uint64 = 13
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x0d, 0x00, 0x00, 0x00})
var out uint64
buf.ReadBitsNext(&out, 8)
if expected != out {
t.Fatalf("expected uint64 does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferSetBit(t *testing.T) {
var expected byte = 1
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.SetBit(0x00)
var out byte
buf.ReadBit(&out, 0x00)
if expected != out {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferSetBitNext(t *testing.T) {
var expected byte = 1
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.SetBitNext()
var out byte
buf.ReadBit(&out, 0x00)
if expected != out {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferClearBit(t *testing.T) {
var expected byte
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.ClearBit(0x00)
var out byte
buf.ReadBit(&out, 0x00)
if expected != out {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferClearBitNext(t *testing.T) {
var expected byte
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.ClearBitNext()
var out byte
buf.ReadBit(&out, 0x00)
if expected != out {
t.Fatalf("expected byte does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferSetBits(t *testing.T) {
var expected uint64 = 5
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.SetBits(0x06, 5, 3)
var out uint64
buf.ReadBits(&out, 0x06, 3)
if expected != out {
t.Fatalf("expected uint64 does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferSetBitsNext(t *testing.T) {
var expected uint64 = 13
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0x00, 0x00, 0x00, 0x00})
buf.SetBitsNext(13, 8)
var out uint64
buf.ReadBits(&out, 0x00, 8)
if expected != out {
t.Fatalf("expected uint64 does not match the one gotten (got %d, expected %d)", out, expected)
}
}
func TestMiniBufferFlipBit(t *testing.T) {
var expected byte
buf := &MiniBuffer{}
NewMiniBuffer(&buf, []byte{0xff, 0xff, 0xff, 0xff})
buf.FlipBit(0x01)