cakephp-tools/Test/bootstrap.php

<?php
function find_root() {
	$root = dirname(__DIR__);
	if (is_dir($root . '/vendor/cakephp/cakephp')) {
		return $root;
	}

	$root = dirname(dirname(__DIR__));
	if (is_dir($root . '/vendor/cakephp/cakephp')) {
		return $root;
	}

	$root = dirname(dirname(dirname(__DIR__)));
	if (is_dir($root . '/vendor/cakephp/cakephp')) {
		return $root;
	}
}

function find_app() {
	if (is_dir(ROOT . '/App')) {
		return 'App';
	}

	if (is_dir(ROOT . '/vendor/cakephp/app/App')) {
		return 'vendor/cakephp/app/App';
	}
}

define('DS', DIRECTORY_SEPARATOR);
define('ROOT', find_root());
define('APP_DIR', find_app());
define('WEBROOT_DIR', 'webroot');
define('APP', ROOT . DS . APP_DIR . DS);
define('WWW_ROOT', ROOT . DS . WEBROOT_DIR . DS);
define('TESTS', ROOT . DS . 'Test' . DS);
define('TMP', ROOT . DS . 'tmp' . DS);
define('LOGS', TMP . 'logs' . DS);
define('CACHE', TMP . 'cache' . DS);
define('CAKE_CORE_INCLUDE_PATH', ROOT . '/vendor/cakephp/cakephp');
define('CORE_PATH', CAKE_CORE_INCLUDE_PATH . DS);
define('CAKE', CORE_PATH . 'src' . DS);

require ROOT . '/vendor/cakephp/cakephp/src/basics.php';
require ROOT . '/vendor/autoload.php';

Cake\Core\Configure::write('App', ['namespace' => 'App']);
Cake\Core\Configure::write('debug', 2);

$TMP = new \Cake\Utility\Folder(TMP);
$TMP->create(TMP . 'cache/models', 0777);
$TMP->create(TMP . 'cache/persistent', 0777);
$TMP->create(TMP . 'cache/views', 0777);

$cache = [
	'default' => [
		'engine' => 'File'
	],
	'_cake_core_' => [
		'className' => 'File',
		'prefix' => 'crud_myapp_cake_core_',
		'path' => CACHE . 'persistent/',
		'serialize' => true,
		'duration' => '+10 seconds'
	],
	'_cake_model_' => [
		'className' => 'File',
		'prefix' => 'crud_my_app_cake_model_',
		'path' => CACHE . 'models/',
		'serialize' => 'File',
		'duration' => '+10 seconds'
	]
];

Cake\Cache\Cache::config($cache);

Cake\Core\Plugin::load('Tools', ['path' => './']);

// Ensure default test connection is defined
if (!getenv('db_class')) {
	putenv('db_class=Cake\Database\Driver\Sqlite');
	putenv('db_dsn=sqlite::memory:');
}

Cake\Datasource\ConnectionManager::config('test', [
	'className' => 'Cake\Database\Connection',
	'driver' => getenv('db_class'),
	'dsn' => getenv('db_dsn'),
	'database' => getenv('db_database'),
	'login' => getenv('db_login'),
	'password' => getenv('db_password'),
	'timezone' => 'UTC',
	'quoteIdentifiers' => true,
]);