mirror of https://github.com/poanetwork/gecko.git
Merge pull request #38 from moreati/utils-packing_test
utils: Tests for Packer packing and unpacking
This commit is contained in:
Stephen Buttolph
GitHub
commit
51db41a696
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@ -24,6 +24,8 @@ const (
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IntLen = 4
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// LongLen is the number of bytes per long
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LongLen = 8
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// BoolLen is the number of bytes per bool
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BoolLen = 1
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)
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var (
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@ -242,7 +244,9 @@ func (p *Packer) PackFixedByteSlices(byteSlices [][]byte) {
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}
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}
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// UnpackFixedByteSlices unpack a byte slice slice to the byte array
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// UnpackFixedByteSlices returns a byte slice slice from the byte array.
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// Each byte slice has the specified size. The number of byte slices is
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// read from the byte array.
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func (p *Packer) UnpackFixedByteSlices(size int) [][]byte {
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sliceSize := p.UnpackInt()
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bytes := [][]byte(nil)
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@ -5,10 +5,61 @@ package wrappers
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import (
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"bytes"
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"reflect"
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"testing"
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)
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func TestPackerByte(t *testing.T) {
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const (
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ByteSentinal = 0
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ShortSentinal = 0
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IntSentinal = 0
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LongSentinal = 0
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BoolSentinal = false
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)
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func TestPackerCheckSpace(t *testing.T) {
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p := Packer{Offset: -1}
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p.CheckSpace(1)
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if !p.Errored() {
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t.Fatal("Expected errNegativeOffset")
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}
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p = Packer{}
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p.CheckSpace(-1)
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if !p.Errored() {
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t.Fatal("Expected errInvalidInput")
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}
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p = Packer{Bytes: []byte{0x01}, Offset: 1}
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p.CheckSpace(1)
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if !p.Errored() {
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t.Fatal("Expected errBadLength")
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}
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p = Packer{Bytes: []byte{0x01}, Offset: 2}
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p.CheckSpace(0)
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if !p.Errored() {
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t.Fatal("Expected errBadLength, due to out of bounds offset")
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}
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}
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func TestPackerExpand(t *testing.T) {
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p := Packer{Bytes: []byte{0x01}, Offset: 2}
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p.Expand(1)
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if !p.Errored() {
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t.Fatal("packer.Expand didn't notice packer had out of bounds offset")
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}
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p = Packer{Bytes: []byte{0x01, 0x02, 0x03}, Offset: 0}
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p.Expand(1)
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if p.Errored() {
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t.Fatalf("packer.Expand unexpectedly had error %s", p.Err)
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} else if len(p.Bytes) != 3 {
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t.Fatalf("packer.Expand modified byte array, when it didn't need to")
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}
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}
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func TestPackerPackByte(t *testing.T) {
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p := Packer{MaxSize: 1}
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p.PackByte(0x01)
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@ -25,9 +76,37 @@ func TestPackerByte(t *testing.T) {
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if !bytes.Equal(p.Bytes, expected) {
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t.Fatalf("Packer.PackByte wrote:\n%v\nExpected:\n%v", p.Bytes, expected)
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}
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p.PackByte(0x02)
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if !p.Errored() {
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t.Fatal("Packer.PackByte did not fail when attempt was beyond p.MaxSize")
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}
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}
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func TestPackerShort(t *testing.T) {
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func TestPackerUnpackByte(t *testing.T) {
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var (
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p = Packer{Bytes: []byte{0x01}, Offset: 0}
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actual = p.UnpackByte()
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expected byte = 1
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expectedLen = ByteLen
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)
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if p.Errored() {
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t.Fatalf("Packer.UnpackByte unexpectedly raised %s", p.Err)
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} else if actual != expected {
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t.Fatalf("Packer.UnpackByte returned %d, but expected %d", actual, expected)
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} else if p.Offset != expectedLen {
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t.Fatalf("Packer.UnpackByte left Offset %d, expected %d", p.Offset, expectedLen)
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}
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actual = p.UnpackByte()
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if !p.Errored() {
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t.Fatalf("Packer.UnpackByte should have set error, due to attempted out of bounds read")
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} else if actual != ByteSentinal {
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t.Fatalf("Packer.UnpackByte returned %d, expected sentinal value %d", actual, ByteSentinal)
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}
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}
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func TestPackerPackShort(t *testing.T) {
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p := Packer{MaxSize: 2}
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p.PackShort(0x0102)
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@ -46,7 +125,30 @@ func TestPackerShort(t *testing.T) {
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}
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}
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func TestPackerInt(t *testing.T) {
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func TestPackerUnpackShort(t *testing.T) {
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var (
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p = Packer{Bytes: []byte{0x01, 0x02}, Offset: 0}
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actual = p.UnpackShort()
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expected uint16 = 0x0102
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expectedLen = ShortLen
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)
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if p.Errored() {
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t.Fatalf("Packer.UnpackShort unexpectedly raised %s", p.Err)
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} else if actual != expected {
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t.Fatalf("Packer.UnpackShort returned %d, but expected %d", actual, expected)
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} else if p.Offset != expectedLen {
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t.Fatalf("Packer.UnpackShort left Offset %d, expected %d", p.Offset, expectedLen)
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}
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actual = p.UnpackShort()
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if !p.Errored() {
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t.Fatalf("Packer.UnpackShort should have set error, due to attempted out of bounds read")
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} else if actual != ShortSentinal {
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t.Fatalf("Packer.UnpackShort returned %d, expected sentinal value %d", actual, ShortSentinal)
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}
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}
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func TestPackerPackInt(t *testing.T) {
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p := Packer{MaxSize: 4}
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p.PackInt(0x01020304)
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@ -63,9 +165,37 @@ func TestPackerInt(t *testing.T) {
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if !bytes.Equal(p.Bytes, expected) {
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t.Fatalf("Packer.PackInt wrote:\n%v\nExpected:\n%v", p.Bytes, expected)
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}
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p.PackInt(0x05060708)
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if !p.Errored() {
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t.Fatal("Packer.PackInt did not fail when attempt was beyond p.MaxSize")
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}
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}
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func TestPackerLong(t *testing.T) {
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func TestPackerUnpackInt(t *testing.T) {
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var (
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p = Packer{Bytes: []byte{0x01, 0x02, 0x03, 0x04}, Offset: 0}
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actual = p.UnpackInt()
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expected uint32 = 0x01020304
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expectedLen = IntLen
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)
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if p.Errored() {
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t.Fatalf("Packer.UnpackInt unexpectedly raised %s", p.Err)
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} else if actual != expected {
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t.Fatalf("Packer.UnpackInt returned %d, but expected %d", actual, expected)
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} else if p.Offset != expectedLen {
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t.Fatalf("Packer.UnpackInt left Offset %d, expected %d", p.Offset, expectedLen)
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}
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actual = p.UnpackInt()
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if !p.Errored() {
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t.Fatalf("Packer.UnpackInt should have set error, due to attempted out of bounds read")
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} else if actual != IntSentinal {
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t.Fatalf("Packer.UnpackInt returned %d, expected sentinal value %d", actual, IntSentinal)
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}
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}
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func TestPackerPackLong(t *testing.T) {
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p := Packer{MaxSize: 8}
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p.PackLong(0x0102030405060708)
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@ -82,6 +212,175 @@ func TestPackerLong(t *testing.T) {
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if !bytes.Equal(p.Bytes, expected) {
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t.Fatalf("Packer.PackLong wrote:\n%v\nExpected:\n%v", p.Bytes, expected)
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}
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p.PackLong(0x090a0b0c0d0e0f00)
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if !p.Errored() {
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t.Fatal("Packer.PackLong did not fail when attempt was beyond p.MaxSize")
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}
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}
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func TestPackerUnpackLong(t *testing.T) {
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var (
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p = Packer{Bytes: []byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08}, Offset: 0}
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actual = p.UnpackLong()
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expected uint64 = 0x0102030405060708
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expectedLen = LongLen
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)
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if p.Errored() {
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t.Fatalf("Packer.UnpackLong unexpectedly raised %s", p.Err)
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} else if actual != expected {
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t.Fatalf("Packer.UnpackLong returned %d, but expected %d", actual, expected)
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} else if p.Offset != expectedLen {
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t.Fatalf("Packer.UnpackLong left Offset %d, expected %d", p.Offset, expectedLen)
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}
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actual = p.UnpackLong()
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if !p.Errored() {
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t.Fatalf("Packer.UnpackLong should have set error, due to attempted out of bounds read")
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} else if actual != LongSentinal {
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t.Fatalf("Packer.UnpackLong returned %d, expected sentinal value %d", actual, LongSentinal)
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}
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}
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func TestPackerPackFixedBytes(t *testing.T) {
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p := Packer{MaxSize: 3}
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p.PackFixedBytes([]byte("Ava"))
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if p.Errored() {
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t.Fatal(p.Err)
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}
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if size := len(p.Bytes); size != 3 {
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t.Fatalf("Packer.PackFixedBytes wrote %d byte(s) but expected %d byte(s)", size, 3)
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}
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expected := []byte("Ava")
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if !bytes.Equal(p.Bytes, expected) {
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t.Fatalf("Packer.PackFixedBytes wrote:\n%v\nExpected:\n%v", p.Bytes, expected)
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}
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p.PackFixedBytes([]byte("Ava"))
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if !p.Errored() {
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t.Fatal("Packer.PackFixedBytes did not fail when attempt was beyond p.MaxSize")
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}
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}
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func TestPackerUnpackFixedBytes(t *testing.T) {
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var (
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p = Packer{Bytes: []byte("Ava")}
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actual = p.UnpackFixedBytes(3)
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expected = []byte("Ava")
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expectedLen = 3
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)
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if p.Errored() {
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t.Fatalf("Packer.UnpackFixedBytes unexpectedly raised %s", p.Err)
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} else if !bytes.Equal(actual, expected) {
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t.Fatalf("Packer.UnpackFixedBytes returned %d, but expected %d", actual, expected)
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} else if p.Offset != expectedLen {
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t.Fatalf("Packer.UnpackFixedBytes left Offset %d, expected %d", p.Offset, expectedLen)
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}
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actual = p.UnpackFixedBytes(3)
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if !p.Errored() {
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t.Fatalf("Packer.UnpackFixedBytes should have set error, due to attempted out of bounds read")
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} else if actual != nil {
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t.Fatalf("Packer.UnpackFixedBytes returned %v, expected sentinal value %v", actual, nil)
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}
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}
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func TestPackerPackBytes(t *testing.T) {
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p := Packer{MaxSize: 7}
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p.PackBytes([]byte("Ava"))
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if p.Errored() {
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t.Fatal(p.Err)
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}
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if size := len(p.Bytes); size != 7 {
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t.Fatalf("Packer.PackBytes wrote %d byte(s) but expected %d byte(s)", size, 7)
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}
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expected := []byte("\x00\x00\x00\x03Ava")
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if !bytes.Equal(p.Bytes, expected) {
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t.Fatalf("Packer.PackBytes wrote:\n%v\nExpected:\n%v", p.Bytes, expected)
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}
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p.PackBytes([]byte("Ava"))
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if !p.Errored() {
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t.Fatal("Packer.PackBytes did not fail when attempt was beyond p.MaxSize")
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}
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}
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func TestPackerUnpackBytes(t *testing.T) {
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var (
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p = Packer{Bytes: []byte("\x00\x00\x00\x03Ava")}
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actual = p.UnpackBytes()
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expected = []byte("Ava")
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expectedLen = 7
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)
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if p.Errored() {
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t.Fatalf("Packer.UnpackBytes unexpectedly raised %s", p.Err)
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} else if !bytes.Equal(actual, expected) {
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t.Fatalf("Packer.UnpackBytes returned %d, but expected %d", actual, expected)
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} else if p.Offset != expectedLen {
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t.Fatalf("Packer.UnpackBytes left Offset %d, expected %d", p.Offset, expectedLen)
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}
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actual = p.UnpackBytes()
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if !p.Errored() {
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t.Fatalf("Packer.UnpackBytes should have set error, due to attempted out of bounds read")
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} else if actual != nil {
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t.Fatalf("Packer.UnpackBytes returned %v, expected sentinal value %v", actual, nil)
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}
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}
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func TestPackerPackFixedByteSlices(t *testing.T) {
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p := Packer{MaxSize: 10}
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p.PackFixedByteSlices([][]byte{[]byte("Ava"), []byte("Eva")})
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if p.Errored() {
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t.Fatal(p.Err)
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}
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if size := len(p.Bytes); size != 10 {
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t.Fatalf("Packer.PackFixedByteSlices wrote %d byte(s) but expected %d byte(s)", size, 13)
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}
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expected := []byte("\x00\x00\x00\x02AvaEva")
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if !bytes.Equal(p.Bytes, expected) {
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t.Fatalf("Packer.PackPackFixedByteSlicesBytes wrote:\n%v\nExpected:\n%v", p.Bytes, expected)
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}
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p.PackFixedByteSlices([][]byte{[]byte("Ava"), []byte("Eva")})
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if !p.Errored() {
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t.Fatal("Packer.PackFixedByteSlices did not fail when attempt was beyond p.MaxSize")
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}
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}
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func TestPackerUnpackFixedByteSlices(t *testing.T) {
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var (
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p = Packer{Bytes: []byte("\x00\x00\x00\x02AvaEva")}
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actual = p.UnpackFixedByteSlices(3)
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expected = [][]byte{[]byte("Ava"), []byte("Eva")}
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expectedLen = 10
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)
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if p.Errored() {
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t.Fatalf("Packer.UnpackFixedByteSlices unexpectedly raised %s", p.Err)
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} else if !reflect.DeepEqual(actual, expected) {
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t.Fatalf("Packer.UnpackFixedByteSlices returned %d, but expected %d", actual, expected)
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} else if p.Offset != expectedLen {
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t.Fatalf("Packer.UnpackFixedByteSlices left Offset %d, expected %d", p.Offset, expectedLen)
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}
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actual = p.UnpackFixedByteSlices(3)
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if !p.Errored() {
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t.Fatalf("Packer.UnpackFixedByteSlices should have set error, due to attempted out of bounds read")
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} else if actual != nil {
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t.Fatalf("Packer.UnpackFixedByteSlices returned %v, expected sentinal value %v", actual, nil)
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}
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}
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func TestPackerString(t *testing.T) {
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@ -151,3 +450,59 @@ func TestPackBool(t *testing.T) {
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t.Fatal("got back wrong values")
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}
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}
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func TestPackerPackBool(t *testing.T) {
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p := Packer{MaxSize: 1}
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p.PackBool(true)
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if p.Errored() {
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t.Fatal(p.Err)
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}
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if size := len(p.Bytes); size != 1 {
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t.Fatalf("Packer.PackBool wrote %d byte(s) but expected %d byte(s)", size, 1)
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}
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expected := []byte{0x01}
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if !bytes.Equal(p.Bytes, expected) {
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t.Fatalf("Packer.PackBool wrote:\n%v\nExpected:\n%v", p.Bytes, expected)
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}
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p.PackBool(false)
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if !p.Errored() {
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t.Fatal("Packer.PackLong did not fail when attempt was beyond p.MaxSize")
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}
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}
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func TestPackerUnpackBool(t *testing.T) {
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var (
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p = Packer{Bytes: []byte{0x01}, Offset: 0}
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actual = p.UnpackBool()
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expected bool = true
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expectedLen = BoolLen
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)
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if p.Errored() {
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t.Fatalf("Packer.UnpackBool unexpectedly raised %s", p.Err)
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} else if actual != expected {
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t.Fatalf("Packer.UnpackBool returned %t, but expected %t", actual, expected)
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} else if p.Offset != expectedLen {
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t.Fatalf("Packer.UnpackBool left Offset %d, expected %d", p.Offset, expectedLen)
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}
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actual = p.UnpackBool()
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if !p.Errored() {
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t.Fatalf("Packer.UnpackBool should have set error, due to attempted out of bounds read")
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} else if actual != BoolSentinal {
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t.Fatalf("Packer.UnpackBool returned %t, expected sentinal value %t", actual, BoolSentinal)
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}
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p = Packer{Bytes: []byte{0x42}, Offset: 0}
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expected = false
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actual = p.UnpackBool()
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if !p.Errored() {
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t.Fatalf("Packer.UnpackBool id not raise error for invalid boolean value %v", p.Bytes)
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} else if actual != expected {
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t.Fatalf("Packer.UnpackBool returned %t, expected sentinal value %t", actual, BoolSentinal)
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}
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}
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