diodemail/smtp/parsers_test.go

/* diodemail - send-only smtp server
 * Copyright (c) 2024 Gnarwhal
 *
 * This file is part of diodemail.
 *
 * diodemail is free software: you can redistribute it and/or modify it under the terms of
 * the GNU General Public License as published by the Free Software Foundation,
 * either version 3 of the License, or (at your option) any later version.
 *
 * diodemail is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * diodemail. If not, see <https://www.gnu.org/licenses/>.
 */

package smtp

import (
	"testing"
)

func TestPathPatterns(t *testing.T) {
	var tests = []struct {
		pattern string
		matches bool
		group   string
	} {
		{
			"<test@example.com>",
			true, "test@example.com",
		},
		{
			"<test@example.com",
				false, "",
		},
		{
			"<test@sub-domain.example.com>",
				true, "test@sub-domain.example.com",
		},
		{
			"<テスト@何か.com>",
				true, "テスト@何か.com",
		},
		{
			"<@source-path.com:test@example.com>",
				true, "test@example.com",
		},
		{
			"<@second-path.com,@source-path.com:test@example.com>",
				true, "test@example.com",
		},
		{
			"<test@example-.com>",
				false, "",
		},
		{
			"<test@example!.com>",
				false, "",
		},
		{
			"<@nope>",
				false, "",
		},
		{
			"<nope>",
				false, "",
		},
		{
			"<>",
				true, "",
		},
	}

	for _, test := range tests {
		t.Run(test.pattern, func(t *testing.T) {
			match := ReversePath.FindStringSubmatch(test.pattern)
			if match == nil {
				if test.matches {
					t.Errorf("unxpectedly did not match")
				}
			} else {
				if !test.matches {
					t.Errorf("unexpectedly matched: %v", match[0])
				} else if match[1] != test.group {
					t.Errorf("got %v, expected %v", match[1], test.group)
				}
			}
		})
	}
}