// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
// SPDX-License-Identifier: MIT

package nfs4server

import (
	"bytes"
	"log"
	"os"
	"strings"
	"testing"
	"time"

	"sourcedock.dev/petrbalvin/nfs/internal/nfs4"
)

// TestOpName covers the log names of the common operations and the
// numeric fallback.
func TestOpName(t *testing.T) {
	for op, want := range map[uint32]string{
		nfs4.OpGetattr: "GETATTR", nfs4.OpReaddir: "READDIR",
		nfs4.OpReclaimComplete: "RECLAIM_COMPLETE", nfs4.OpGetxattr: "GETXATTR",
		999: "OP999",
	} {
		if got := opName(op); got != want {
			t.Fatalf("opName(%d) = %q, want %q", op, got, want)
		}
	}
}

// TestLogOp covers the log line shape: operation, status, duration.
func TestLogOp(t *testing.T) {
	var buf bytes.Buffer
	log.SetOutput(&buf)
	t.Cleanup(func() { log.SetOutput(os.Stderr) })
	logOp(nfs4.OpWrite, nfs4.ErrOK, 1500*time.Microsecond)
	line := buf.String()
	if !strings.Contains(line, "WRITE status 0") || !strings.Contains(line, "1.5") {
		t.Fatalf("log line %q misses the operation, the status or the duration", line)
	}
}