package journal

import (
	"bytes"
	"encoding/hex"
	"net"
	"testing"
)

func TestWireWrite(t *testing.T) {
	var buf net.Buffers
	out := bytes.NewBuffer(nil)
	err := WireWrite(&buf, out, []Attr{
		Attr{
			Key:   AttrKey{key: "MESSAGE"},
			Value: []byte("hello, world!"),
		},
		priorityAttrMap[PriDebug],
		Attr{
			Key:   AttrKey{key: "MULTI_LINE"},
			Value: []byte("hello,\nworld!"),
		},
	})
	if err != nil {
		t.Errorf("unexpected error writing to buffer: %v", err)
	}

	if out.String() != wireWriteExpected {
		t.Error("unexpected output buffer:\n" + hex.Dump(out.Bytes()))
	}
}

const wireWriteExpected = `MESSAGE=hello, world!
PRIORITY=7
MULTI_LINE
` + "\x0D\x00\x00\x00\x00\x00\x00\x00" + `hello,
world!
`