package cephfs

import (
	"fmt"
	"os"
	"path"
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestChangeDir(t *testing.T) {
	mount := fsConnect(t)
	defer fsDisconnect(t, mount)

	dir1 := mount.CurrentDir()
	assert.NotNil(t, dir1)

	err := mount.MakeDir("/asdf", 0755)
	assert.NoError(t, err)

	err = mount.ChangeDir("/asdf")
	assert.NoError(t, err)

	dir2 := mount.CurrentDir()
	assert.NotNil(t, dir2)

	assert.NotEqual(t, dir1, dir2)
	assert.Equal(t, dir1, "/")
	assert.Equal(t, dir2, "/asdf")

	err = mount.ChangeDir("/")
	assert.NoError(t, err)
	err = mount.RemoveDir("/asdf")
	assert.NoError(t, err)
}

func TestRemoveDir(t *testing.T) {
	useMount(t)

	dirname := "one"
	localPath := path.Join(CephMountDir, dirname)
	mount := fsConnect(t)
	defer fsDisconnect(t, mount)

	err := mount.MakeDir(dirname, 0755)
	assert.NoError(t, err)

	err = mount.SyncFs()
	assert.NoError(t, err)

	// os.Stat the actual mounted location to verify Makedir/RemoveDir
	_, err = os.Stat(localPath)
	assert.NoError(t, err)

	err = mount.RemoveDir(dirname)
	assert.NoError(t, err)

	_, err = os.Stat(localPath)
	assert.EqualError(t, err,
		fmt.Sprintf("stat %s: no such file or directory", localPath))
}