74 lines
1.6 KiB
Go
74 lines
1.6 KiB
Go
package util
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import (
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"bytes"
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"testing"
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)
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func TestDecodeULEB128(t *testing.T) {
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var leb128 = bytes.NewBuffer([]byte{0xE5, 0x8E, 0x26})
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n, c := DecodeULEB128(leb128)
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if n != 624485 {
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t.Fatal("Number was not decoded properly, got: ", n, c)
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}
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if c != 3 {
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t.Fatal("Count not returned correctly")
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}
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}
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func TestDecodeSLEB128(t *testing.T) {
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sleb128 := bytes.NewBuffer([]byte{0x9b, 0xf1, 0x59})
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n, c := DecodeSLEB128(sleb128)
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if n != -624485 {
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t.Fatal("Number was not decoded properly, got: ", n, c)
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}
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}
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func TestEncodeULEB128(t *testing.T) {
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tc := []uint64{0x00, 0x7f, 0x80, 0x8f, 0xffff, 0xfffffff7}
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for i := range tc {
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var buf bytes.Buffer
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EncodeULEB128(&buf, tc[i])
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enc := append([]byte{}, buf.Bytes()...)
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buf.Write([]byte{0x1, 0x2, 0x3})
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out, c := DecodeULEB128(&buf)
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t.Logf("input %x output %x encoded %x", tc[i], out, enc)
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if c != uint32(len(enc)) {
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t.Errorf("wrong encode")
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}
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if out != tc[i] {
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t.Errorf("wrong encode")
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}
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}
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}
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func TestEncodeSLEB128(t *testing.T) {
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tc := []int64{2, -2, 127, -127, 128, -128, 129, -129}
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for i := range tc {
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var buf bytes.Buffer
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EncodeSLEB128(&buf, tc[i])
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enc := append([]byte{}, buf.Bytes()...)
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buf.Write([]byte{0x1, 0x2, 0x3})
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out, c := DecodeSLEB128(&buf)
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t.Logf("input %x output %x encoded %x", tc[i], out, enc)
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if c != uint32(len(enc)) {
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t.Errorf("wrong encode")
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}
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if out != tc[i] {
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t.Errorf("wrong encode")
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}
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}
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}
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func TestParseString(t *testing.T) {
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bstr := bytes.NewBuffer([]byte{'h', 'i', 0x0, 0xFF, 0xCC})
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str, _ := ParseString(bstr)
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if str != "hi" {
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t.Fatalf("String was not parsed correctly %#v", str)
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}
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}
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