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package message
import (
"testing"
"bytes"
)
func TestSizeInt64(t *testing.T) {
s := sizeInt64(0)
if s != 1 {
t.Errorf("computed size is %d, expected 1", s)
}
s = sizeInt64(127)
if s != 1 {
t.Errorf("computed size is %d, expected 1", s)
}
s = sizeInt64(128)
if s != 2 {
t.Errorf("computed size is %d, expected 2", s)
}
s = sizeInt64(50000)
if s != 3 {
t.Errorf("computed size is %d, expected 3", s)
}
s = sizeInt64(-12345)
if s != 2 {
t.Errorf("computed size is %d, expected 2", s)
}
}
func TestWriteInt64(t *testing.T) {
vtests := []int64{0, 127, 128, 50000, -12345}
expsize := []int{1, 1, 2, 3, 2}
expresult := [][]byte{{0x00}, {0x7F}, {0x00, 0x80}, {0x00, 0xc3, 0x50}, {0xcf, 0xc7}}
for idx, v := range vtests {
fs := sizeInt64(v)
b := NewBytes(fs, make([]byte, fs))
t.Log("computing", v)
s := writeInt64(b, v)
if s != expsize[idx] {
t.Errorf("computed size is %d, expected %d", s, expsize[idx])
}
if !bytes.Equal(b.Bytes(), expresult[idx]) {
t.Errorf("wrong computed bytes, got %v, expected %v", b.Bytes(), expresult[idx])
}
a, e := parseInt64(b.Bytes())
t.Log("parse", a, e)
}
}
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