<?php declare(strict_types=1);

namespace Test\Unit;

use BitBadger\PDODocument\{AutoId, Configuration, DocumentException};
use PHPUnit\Framework\Attributes\TestDox;
use PHPUnit\Framework\TestCase;

/**
 * Unit tests for the Configuration class
 */
class ConfigurationTest extends TestCase
{
    #[TestDox('ID field default succeeds')]
    public function testIdFieldDefaultSucceeds(): void
    {
        $this->assertEquals('id', Configuration::$idField, 'Default ID field should be "id"');
    }

    #[TestDox('ID field change succeeds')]
    public function testIdFieldChangeSucceeds()
    {
        try {
            Configuration::$idField = 'EyeDee';
            $this->assertEquals('EyeDee', Configuration::$idField, 'ID field should have been updated');
        } finally {
            Configuration::$idField = 'id';
            $this->assertEquals('id', Configuration::$idField, 'Default ID value should have been restored');
        }
    }

    #[TestDox('Auto ID default succeeds')]
    public function testAutoIdDefaultSucceeds(): void
    {
        $this->assertEquals(AutoId::None, Configuration::$autoId, 'Auto ID should default to None');
    }

    #[TestDox('ID string length default succeeds')]
    public function testIdStringLengthDefaultSucceeds(): void
    {
        $this->assertEquals(16, Configuration::$idStringLength, 'ID string length should default to 16');
    }

    #[TestDox("Db conn fails when no DSN specified")]
    public function testDbConnFailsWhenNoDSNSpecified(): void
    {
        $this->expectException(DocumentException::class);
        Configuration::$pdoDSN = '';
        Configuration::dbConn();
    }
}