mautrix-go/crypto/goolm/message/decoder_test.go
2023-12-15 15:56:38 +02:00

82 lines
3 KiB
Go

package message
import (
"bytes"
"testing"
)
func TestEncodeLengthInt(t *testing.T) {
numbers := []uint32{127, 128, 16383, 16384, 32767}
expected := []int{1, 2, 2, 3, 3}
for curIndex := range numbers {
if result := encodeVarIntByteLength(numbers[curIndex]); result != expected[curIndex] {
t.Fatalf("expected byte length of %d but got %d", expected[curIndex], result)
}
}
}
func TestEncodeLengthString(t *testing.T) {
var strings [][]byte
var expected []int
strings = append(strings, []byte("test"))
expected = append(expected, 1+4)
strings = append(strings, []byte("this is a long message with a length of 127 so that the varint of the length is just one byte. just needs some padding---------"))
expected = append(expected, 1+127)
strings = append(strings, []byte("this is an even longer message with a length between 128 and 16383 so that the varint of the length needs two byte. just needs some padding again ---------"))
expected = append(expected, 2+155)
for curIndex := range strings {
if result := encodeVarStringByteLength(strings[curIndex]); result != expected[curIndex] {
t.Fatalf("expected byte length of %d but got %d", expected[curIndex], result)
}
}
}
func TestEncodeInt(t *testing.T) {
var ints []uint32
var expected [][]byte
ints = append(ints, 7)
expected = append(expected, []byte{0b00000111})
ints = append(ints, 127)
expected = append(expected, []byte{0b01111111})
ints = append(ints, 128)
expected = append(expected, []byte{0b10000000, 0b00000001})
ints = append(ints, 16383)
expected = append(expected, []byte{0b11111111, 0b01111111})
for curIndex := range ints {
if result := encodeVarInt(ints[curIndex]); !bytes.Equal(result, expected[curIndex]) {
t.Fatalf("expected byte of %b but got %b", expected[curIndex], result)
}
}
}
func TestEncodeString(t *testing.T) {
var strings [][]byte
var expected [][]byte
curTest := []byte("test")
strings = append(strings, curTest)
res := []byte{
0b00000100, //varint length of string
}
res = append(res, curTest...) //Add string itself
expected = append(expected, res)
curTest = []byte("this is a long message with a length of 127 so that the varint of the length is just one byte. just needs some padding---------")
strings = append(strings, curTest)
res = []byte{
0b01111111, //varint length of string
}
res = append(res, curTest...) //Add string itself
expected = append(expected, res)
curTest = []byte("this is an even longer message with a length between 128 and 16383 so that the varint of the length needs two byte. just needs some padding again ---------")
strings = append(strings, curTest)
res = []byte{
0b10011011, //varint length of string
0b00000001, //varint length of string
}
res = append(res, curTest...) //Add string itself
expected = append(expected, res)
for curIndex := range strings {
if result := encodeVarString(strings[curIndex]); !bytes.Equal(result, expected[curIndex]) {
t.Fatalf("expected byte of %b but got %b", expected[curIndex], result)
}
}
}