reactive-mail-server/backend/src/test/java/com/mailserver/config/DataInitializerTest.java

package com.mailserver.config;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;

import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.attribute.PosixFilePermissions;

import static org.assertj.core.api.Assertions.assertThat;

class DataInitializerTest {

    @Test
    void generatedPasswordsAreAppendedToAFileOnlyTheOwnerReads(@TempDir Path dir) throws Exception {
        Path file = dir.resolve("data/initial-passwords.txt");

        DataInitializer.appendPassword(file, "admin@mail.test", "secret-1");
        DataInitializer.appendPassword(file, "trap@mail.test", "secret-2");

        assertThat(Files.readAllLines(file)).hasSize(2);
        assertThat(Files.readAllLines(file).get(0)).endsWith(" admin@mail.test secret-1");
        assertThat(Files.readAllLines(file).get(1)).endsWith(" trap@mail.test secret-2");
        assertThat(PosixFilePermissions.toString(Files.getPosixFilePermissions(file))).isEqualTo("rw-------");
    }
}