package headers

import (
	"crypto/rand"
	"reflect"
	"testing"
)

func TestHeaders_Generate(t *testing.T) {

	initialHeaders := Headers{
		HeaderString: []byte(HeaderString),
		PageSize:     uint64(256 ^ 2),
		DBVersion:    uint16(1),

		WAL:    true,
		Commit: make([]byte, CommitDataLength),
	}

	_, err := rand.Read(initialHeaders.Commit[:CommitDataLength])
	if err != nil {
		t.Error("Failed to generate random string")
	}

	output := initialHeaders.Generate()

	parsedHeaders := Headers{}
	parsedHeaders.Parse(output, 0)

	if !reflect.DeepEqual(initialHeaders, parsedHeaders) {
		t.Error("deepequal failed, headers are not identical.")
	}
}