not used to plugin testing - trying to get working but fixtures not working yet

tests/bootstrap.php

@@ -1,55 +1,105 @@
 <?php
-declare(strict_types=1);
 
-/**
- * Test suite bootstrap for CakeProducts.
- *
- * This function is used to find the location of CakePHP whether CakePHP
- * has been installed as a dependency of the plugin, or the plugin is itself
- * installed as a dependency of an application.
- */
-$findRoot = function ($root) {
-    do {
-        $lastRoot = $root;
-        $root = dirname($root);
-        if (is_dir($root . '/vendor/cakephp/cakephp')) {
-            return $root;
-        }
-    } while ($root !== $lastRoot);
+use Cake\Cache\Cache;
+use Cake\Core\Configure;
+use Cake\Core\Plugin;
+use Cake\Database\Type\JsonType;
+use Cake\Database\TypeFactory;
+use Cake\Datasource\ConnectionManager;
+use Cake\ORM\Table;
+use Cake\TestSuite\Fixture\SchemaLoader;
+use Cake\Utility\Security;
+use Cake\View\View;
+use CakeProducts\CakeProductsPlugin;
+use TestApp\Application;
+use TestApp\Controller\AppController;
 
-    throw new Exception('Cannot find the root of the application, unable to run tests');
-};
-$root = $findRoot(__FILE__);
-unset($findRoot);
-
-chdir($root);
-
-require_once $root . '/vendor/autoload.php';
-
-/**
- * Define fallback values for required constants and configuration.
- * To customize constants and configuration remove this require
- * and define the data required by your plugin here.
- */
-require_once $root . '/vendor/cakephp/cakephp/tests/bootstrap.php';
-
-if (file_exists($root . '/config/bootstrap.php')) {
-    require $root . '/config/bootstrap.php';
-
-    return;
+if (!defined('DS')) {
+    define('DS', DIRECTORY_SEPARATOR);
 }
 
-/**
- * Load schema from a SQL dump file.
- *
- * If your plugin does not use database fixtures you can
- * safely delete this.
- *
- * If you want to support multiple databases, consider
- * using migrations to provide schema for your plugin,
- * and using \Migrations\TestSuite\Migrator to load schema.
- */
-use Cake\TestSuite\Fixture\SchemaLoader;
+define('ROOT', dirname(__DIR__));
+define('APP_DIR', 'src');
 
-// Load a schema dump file.
-(new SchemaLoader())->loadSqlFiles('tests/schema.sql', 'test');
+// Point app constants to the test app.
+define('TEST_ROOT', ROOT . DS . 'tests' . DS . 'test_app' . DS);
+define('APP', TEST_ROOT . APP_DIR . DS);
+
+define('TMP', ROOT . DS . 'tmp' . DS);
+if (!is_dir(TMP)) {
+    mkdir(TMP, 0770, true);
+}
+define('TESTS', ROOT . DS . 'tests' . DS);
+define('CONFIG', TESTS . 'config' . 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 . APP_DIR . DS);
+
+require dirname(__DIR__) . '/vendor/autoload.php';
+require CORE_PATH . 'config/bootstrap.php';
+require CAKE_CORE_INCLUDE_PATH . '/src/functions.php';
+
+Configure::write('App', [
+    'encoding' => 'utf-8',
+    'namespace' => 'App',
+    'paths' => [
+        'templates' => [TESTS . 'test_app' . DS . 'templates' . DS],
+    ],
+    'fullBaseUrl' => 'http://localhost',
+]);
+
+Configure::write('debug', true);
+
+$cache = [
+    'default' => [
+        'engine' => 'File',
+    ],
+    '_cake_core_' => [
+        'className' => 'File',
+        'prefix' => 'crud_myapp_cake_core_',
+        'path' => CACHE . 'persistent/',
+        'serialize' => true,
+        'duration' => '+10 seconds',
+    ],
+    '_cake_model_' => [
+        'className' => 'File',
+        'prefix' => 'crud_my_app_cake_model_',
+        'path' => CACHE . 'models/',
+        'serialize' => 'File',
+        'duration' => '+10 seconds',
+    ],
+];
+
+Cache::setConfig($cache);
+
+Security::setSalt('123');
+
+TypeFactory::map('json', JsonType::class);
+
+class_alias(Application::class, 'App\Application');
+class_alias(AppController::class, 'App\Controller\AppController');
+class_alias(Table::class, 'App\Model\Table\Table');
+class_alias(View::class, 'App\View\AppView');
+
+Plugin::getCollection()->add(new CakeProductsPlugin());
+
+// Ensure default test connection is defined
+if (!getenv('DB_URL')) {
+    putenv('DB_URL=sqlite:///:memory:');
+}
+
+ConnectionManager::setConfig('test', [
+    'url' => getenv('DB_URL') ?: null,
+    'timezone' => 'UTC',
+    'quoteIdentifiers' => true,
+    'cacheMetadata' => true,
+]);
+
+if (env('FIXTURE_SCHEMA_METADATA')) {
+    $loader = new SchemaLoader();
+    $loader->loadInternalFile(env('FIXTURE_SCHEMA_METADATA'));
+}