You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: notifications_test.go
    path of file: ./repos/storj/storagenode/notifications
    
    the code of the file until where you have to start completion: // Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.

package notifications_test

import (
	"testing"
	"time"

	"github.com/stretchr/testify/require"

	"storj.io/common/identity/testidentity"
	"storj.io/common/storj"
	"storj.io/co
    
func TestEmptyNotificationsDB(t *testing.T) {
	storagenodedbtest.Run(t, func(ctx *testcontext.Context, t *testing.T, db storagenode.DB) {
		notificationsdb := db.Notifications()

		notificationCursor := notifications.Cursor{
			Limit: 5,
			Page:  1,
		}

		// test List method to return right form of page depending on cursor with empty database.
		t.Run("empty paged list", func(t *testing.T) {
			page, err := notificationsdb.List(ctx, notificationCursor)
			require.NoError(t, err)
			require.Equal(t, len(page.Notifications), 0)
			require.Equal(t, page.Limit, notificationCursor.Limit)
			require.Equal(t, page.Offset, uint64(0))
			require.Equal(t, page.PageCount, uint(0))
			require.Equal(t, page.TotalCount, uint64(0))
			require.Equal(t, page.CurrentPage, uint(0))
		})

		// test notification read with not existing id.
		t.Run("notification read with not existing id", func(t *testing.T) {
			err := notificationsdb.Read(ctx, testrand.UUID())
			require.Error(t, err, "no rows affected")
		})

		// test read for all notifications if they don't exist.
		t.Run("notification readAll on empty page", func(t *testing.T) {
			err := notificationsdb.ReadAll(ctx)
			require.NoError(t, err)
		})
	})
}