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package leb128
import (
"bytes"
"testing"
)
func TestEncodeUnsigned(t *testing.T) {
tc := []uint64{0x00, 0x7f, 0x80, 0x8f, 0xffff, 0xfffffff7}
for i := range tc {
var buf bytes.Buffer
EncodeUnsigned(&buf, tc[i])
enc := append([]byte{}, buf.Bytes()...)
buf.Write([]byte{0x1, 0x2, 0x3})
out, c := DecodeUnsigned(&buf)
t.Logf("input %x output %x encoded %x", tc[i], out, enc)
if c != uint32(len(enc)) {
t.Errorf("wrong encode")
}
if out != tc[i] {
t.Errorf("wrong encode")
}
}
}
func TestEncodeSigned(t *testing.T) {
tc := []int64{2, -2, 127, -127, 128, -128, 129, -129}
for i := range tc {
var buf bytes.Buffer
EncodeSigned(&buf, tc[i])
enc := append([]byte{}, buf.Bytes()...)
buf.Write([]byte{0x1, 0x2, 0x3})
out, c := DecodeSigned(&buf)
t.Logf("input %x output %x encoded %x", tc[i], out, enc)
if c != uint32(len(enc)) {
t.Errorf("wrong encode")
}
if out != tc[i] {
t.Errorf("wrong encode")
}
}
}
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