146 lines
3.7 KiB
Go
146 lines
3.7 KiB
Go
package packet_test
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import (
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"bytes"
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_ "embed"
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"fmt"
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"testing"
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pk "github.com/Tnze/go-mc/net/packet"
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)
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var VarInts = []pk.VarInt{0, 1, 2, 127, 128, 255, 2147483647, -1, -2147483648}
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var PackedVarInts = [][]byte{
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{0x00},
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{0x01},
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{0x02},
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{0x7f},
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{0x80, 0x01},
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{0xff, 0x01},
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{0xff, 0xff, 0xff, 0xff, 0x07},
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{0xff, 0xff, 0xff, 0xff, 0x0f},
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{0x80, 0x80, 0x80, 0x80, 0x08},
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}
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func TestVarInt_WriteTo(t *testing.T) {
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var buf bytes.Buffer
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for i, v := range VarInts {
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buf.Reset()
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if n, err := v.WriteTo(&buf); err != nil {
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t.Fatalf("Write to bytes.Buffer should never fail: %v", err)
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} else if n != int64(buf.Len()) {
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t.Errorf("Number of byte returned by WriteTo should equal to buffer.Len()")
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}
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if p := buf.Bytes(); !bytes.Equal(p, PackedVarInts[i]) {
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t.Errorf("pack int %d should be \"% x\", get \"% x\"", v, PackedVarInts[i], p)
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}
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}
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}
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func TestVarInt_ReadFrom(t *testing.T) {
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for i, v := range PackedVarInts {
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var vi pk.VarInt
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if _, err := vi.ReadFrom(bytes.NewReader(v)); err != nil {
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t.Errorf("unpack \"% x\" error: %v", v, err)
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}
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if vi != VarInts[i] {
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t.Errorf("unpack \"% x\" should be %d, get %d", v, VarInts[i], vi)
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}
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}
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}
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func TestVarInt_ReadFrom_tooLongData(t *testing.T) {
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var vi pk.VarInt
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var data = []byte{0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x01}
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if _, err := vi.ReadFrom(bytes.NewReader(data)); err != nil {
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t.Logf("unpack \"% x\" error: %v", data, err)
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} else {
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t.Errorf("unpack \"% x\" should be error, get %d", data, vi)
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}
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}
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var VarLongs = []pk.VarLong{0, 1, 2, 127, 128, 255, 2147483647, 9223372036854775807, -1, -2147483648, -9223372036854775808}
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var PackedVarLongs = [][]byte{
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{0x00},
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{0x01},
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{0x02},
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{0x7f},
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{0x80, 0x01},
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{0xff, 0x01},
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{0xff, 0xff, 0xff, 0xff, 0x07},
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{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f},
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{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x01},
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{0x80, 0x80, 0x80, 0x80, 0xf8, 0xff, 0xff, 0xff, 0xff, 0x01},
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{0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x01},
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}
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func TestVarLong_WriteTo(t *testing.T) {
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var buf bytes.Buffer
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for i, v := range VarLongs {
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buf.Reset()
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if _, err := v.WriteTo(&buf); err != nil {
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t.Error(err)
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}
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if !bytes.Equal(buf.Bytes(), PackedVarLongs[i]) {
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t.Errorf("pack long %d should be \"% x\", get \"% x\"", v, PackedVarLongs[i], buf.Bytes())
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}
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}
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}
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func TestVarLong_ReadFrom(t *testing.T) {
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for i, v := range PackedVarLongs {
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var vi pk.VarLong
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if _, err := vi.ReadFrom(bytes.NewReader(v)); err != nil {
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t.Errorf("unpack \"% x\" error: %v", v, err)
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}
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if vi != VarLongs[i] {
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t.Errorf("unpack \"% x\" should be %d, get %d", v, VarLongs[i], vi)
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}
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}
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}
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//go:embed joingame_test.bin
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var testJoinGameData []byte
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func ExamplePacket_Scan_joinGame() {
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p := pk.Packet{ID: 0x24, Data: testJoinGameData}
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var (
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EID pk.Int
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Hardcore pk.Boolean
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Gamemode pk.UnsignedByte
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PreGamemode pk.Byte
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WorldCount pk.VarInt
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WorldNames = make([]pk.Identifier, 0) // This cannot replace with "var WorldNames []pk.Identifier" because "nil" has no type information
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DimensionCodec struct {
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DimensionType interface{} `nbt:"minecraft:dimension_type"`
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WorldgenBiome interface{} `nbt:"minecraft:worldgen/biome"`
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}
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Dimension interface{}
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WorldName pk.Identifier
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HashedSeed pk.Long
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MaxPlayers pk.VarInt
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ViewDistance pk.VarInt
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RDI, ERS, IsDebug, IsFlat pk.Boolean
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)
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err := p.Scan(
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&EID,
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&Hardcore,
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&Gamemode,
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&PreGamemode,
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&WorldCount,
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pk.Ary{
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Len: &WorldCount,
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Ary: &WorldNames,
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},
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pk.NBT(&DimensionCodec),
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pk.NBT(&Dimension),
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&WorldName,
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&HashedSeed,
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&MaxPlayers,
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&ViewDistance,
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&RDI, &ERS, &IsDebug, &IsFlat,
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)
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fmt.Print(err)
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// Output: <nil>
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}
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