Files
go-mc/nbt/marshal_test.go

142 lines
3.3 KiB
Go

package nbt
import (
"bytes"
"math"
"testing"
)
func TestMarshal_IntArray(t *testing.T) {
// Test marshal pure Int array
v := []int32{0, -10, 3}
out := []byte{TagIntArray, 0x00, 0x00, 0, 0, 0, 3,
0x00, 0x00, 0x00, 0x00,
0xff, 0xff, 0xff, 0xf6,
0x00, 0x00, 0x00, 0x03,
}
var buf bytes.Buffer
if err := Marshal(&buf, v); err != nil {
t.Error(err)
} else if !bytes.Equal(buf.Bytes(), out) {
t.Errorf("output binary not right: get % 02x, want % 02x ", buf.Bytes(), out)
}
// Test marshal in a struct
v2 := struct {
Ary []int32 `nbt:"ary"`
}{[]int32{0, -10, 3}}
out = []byte{TagCompound, 0x00, 0x00,
TagIntArray, 0x00, 0x03, 'a', 'r', 'y', 0, 0, 0, 3,
0x00, 0x00, 0x00, 0x00, // 0
0xff, 0xff, 0xff, 0xf6, // -10
0x00, 0x00, 0x00, 0x03, // 3
TagEnd,
}
buf.Reset()
if err := Marshal(&buf, v2); err != nil {
t.Error(err)
} else if !bytes.Equal(buf.Bytes(), out) {
t.Errorf("output binary not right: get % 02x, want % 02x ", buf.Bytes(), out)
}
}
func TestMarshal_FloatArray(t *testing.T) {
// Test marshal pure Int array
v := []float32{0.3, -100, float32(math.NaN())}
out := []byte{TagList, 0x00, 0x00, TagFloat, 0, 0, 0, 3,
0x3e, 0x99, 0x99, 0x9a, // 0.3
0xc2, 0xc8, 0x00, 0x00, // -100
0x7f, 0xc0, 0x00, 0x00, // NaN
}
var buf bytes.Buffer
if err := Marshal(&buf, v); err != nil {
t.Error(err)
} else if !bytes.Equal(buf.Bytes(), out) {
t.Errorf("output binary not right: get % 02x, want % 02x ", buf.Bytes(), out)
}
}
func TestMarshal_InterfaceArray(t *testing.T) {
type Struct1 struct {
Val int32
}
type Struct2 struct {
Val float32
}
tests := []struct {
name string
args []interface{}
want []byte
}{
{
name: "Two element interface array",
args: []interface{}{Struct1{3}, Struct2{0.3}},
want: []byte{
TagList, 0x00, 0x00 /*no name*/, TagCompound, 0, 0, 0, 2,
// 1st element
TagCompound, 0x00, 0x00, /*no name*/
TagInt, 0x00, 0x03, 'V', 'a', 'l', 0x00, 0x00, 0x00, 0x03, // 3
TagEnd,
// 2nd element
TagCompound, 0x00, 0x00, /*no name*/
TagFloat, 0x00, 0x03, 'V', 'a', 'l', 0x3e, 0x99, 0x99, 0x9a, // 0.3
TagEnd,
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
w := &bytes.Buffer{}
err := Marshal(w, tt.args)
if err != nil {
t.Error(err)
} else if !bytes.Equal(w.Bytes(), tt.want) {
t.Errorf("Marshal([]interface{}) got = % 02x, want % 02x", w.Bytes(), tt.want)
return
}
})
}
}
func TestMarshal_StructArray(t *testing.T) {
type Struct1 struct {
Val int32
}
tests := []struct {
name string
args []Struct1
want []byte
}{
{
name: "One element struct array",
args: []Struct1{{3}, {-10}},
want: []byte{
TagList, 0x00, 0x00 /*no name*/, TagCompound, 0, 0, 0, 2,
// 1st element
TagCompound, 0x00, 0x00, /*no name*/
TagInt, 0x00, 0x03, 'V', 'a', 'l', 0x00, 0x00, 0x00, 0x03, // 3
TagEnd,
// 2nd element
TagCompound, 0x00, 0x00, /*no name*/
TagInt, 0x00, 0x03, 'V', 'a', 'l', 0xff, 0xff, 0xff, 0xf6, // -10
TagEnd,
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
w := &bytes.Buffer{}
err := Marshal(w, tt.args)
if err != nil {
t.Error(err)
} else if !bytes.Equal(w.Bytes(), tt.want) {
t.Errorf("Marshal([]struct{}) got = % 02x, want % 02x", w.Bytes(), tt.want)
return
}
})
}
}