silverstripe-framework/tests/php/ORM/DBTest.php

<?php

namespace SilverStripe\ORM\Tests;

use SilverStripe\Control\Director;
use SilverStripe\ORM\DB;
use SilverStripe\Dev\SapphireTest;

class DBTest extends SapphireTest {

	public function testValidAlternativeDatabaseName() {

		$prefix = defined('SS_DATABASE_PREFIX') ? SS_DATABASE_PREFIX : 'ss_';

		Director::config()->update('environment_type', 'dev');
		$this->assertTrue(DB::valid_alternative_database_name($prefix.'tmpdb1234567'));
		$this->assertFalse(DB::valid_alternative_database_name($prefix.'tmpdb12345678'));
		$this->assertFalse(DB::valid_alternative_database_name('tmpdb1234567'));
		$this->assertFalse(DB::valid_alternative_database_name('random'));
		$this->assertFalse(DB::valid_alternative_database_name(''));

		Director::config()->update('environment_type', 'live');
		$this->assertFalse(DB::valid_alternative_database_name($prefix.'tmpdb1234567'));

		Director::config()->update('environment_type', 'dev');
	}

}