Bootstrap email-editor integration tests

I tried to minimize the code repetition.
[MAILPOET-6216]

packages/php/email-editor/tests/integration/_bootstrap.php

@@ -0,0 +1,178 @@
+<?php declare(strict_types = 1);
+
+use Codeception\Stub;
+use MailPoet\EmailEditor\Container;
+use MailPoet\EmailEditor\Engine\EmailApiController;
+use MailPoet\EmailEditor\Engine\EmailEditor;
+use MailPoet\EmailEditor\Engine\Patterns\Patterns;
+use MailPoet\EmailEditor\Engine\Renderer\ContentRenderer\BlocksRegistry;
+use MailPoet\EmailEditor\Engine\Renderer\ContentRenderer\ContentRenderer;
+use MailPoet\EmailEditor\Engine\Renderer\ContentRenderer\Postprocessors\HighlightingPostprocessor;
+use MailPoet\EmailEditor\Engine\Renderer\ContentRenderer\Postprocessors\VariablesPostprocessor;
+use MailPoet\EmailEditor\Engine\Renderer\ContentRenderer\Preprocessors\BlocksWidthPreprocessor;
+use MailPoet\EmailEditor\Engine\Renderer\ContentRenderer\Preprocessors\CleanupPreprocessor;
+use MailPoet\EmailEditor\Engine\Renderer\ContentRenderer\Preprocessors\SpacingPreprocessor;
+use MailPoet\EmailEditor\Engine\Renderer\ContentRenderer\Preprocessors\TypographyPreprocessor;
+use MailPoet\EmailEditor\Engine\Renderer\ContentRenderer\ProcessManager;
+use MailPoet\EmailEditor\Engine\Renderer\Renderer;
+use MailPoet\EmailEditor\Engine\SettingsController;
+use MailPoet\EmailEditor\Engine\Templates\TemplatePreview;
+use MailPoet\EmailEditor\Engine\Templates\Templates;
+use MailPoet\EmailEditor\Engine\Templates\Utils;
+use MailPoet\EmailEditor\Engine\ThemeController;
+use MailPoet\EmailEditor\Integrations\Core\Initializer;
+use MailPoet\EmailEditor\Integrations\MailPoet\Blocks\BlockTypesController;
+use MailPoet\EmailEditor\Utils\CdnAssetUrl;
+
+if ((boolean)getenv('MULTISITE') === true) {
+  // REQUEST_URI needs to be set for WP to load the proper subsite where MailPoet is activated
+  $_SERVER['REQUEST_URI'] = '/' . getenv('WP_TEST_MULTISITE_SLUG');
+  $wpLoadFile = getenv('WP_ROOT_MULTISITE') . '/wp-load.php';
+} else {
+  $wpLoadFile = getenv('WP_ROOT') . '/wp-load.php';
+}
+
+/**
+ * Setting env from .evn file
+ * Note that the following are override in the docker-compose file
+ * WP_ROOT, WP_ROOT_MULTISITE, WP_TEST_MULTISITE_SLUG
+ */
+$console = new \Codeception\Lib\Console\Output([]);
+$console->writeln('Loading WP core... (' . $wpLoadFile . ')');
+require_once($wpLoadFile);
+
+/**
+ * @property IntegrationTester $tester
+ */
+abstract class MailPoetTest extends \Codeception\TestCase\Test { // phpcs:ignore
+
+  public Container $diContainer;
+
+  protected $backupGlobals = false;
+  protected $backupStaticAttributes = false;
+  protected $runTestInSeparateProcess = false;
+  protected $preserveGlobalState = false;
+
+  public function setUp(): void {
+    $this->initContainer();
+    parent::setUp();
+  }
+
+  protected function checkValidHTML(string $html): void {
+    $dom = new \DOMDocument();
+    libxml_use_internal_errors(true);
+    $dom->loadHTML($html);
+
+    // Check for errors during parsing
+    $errors = libxml_get_errors();
+    libxml_clear_errors();
+
+    $this->assertEmpty($errors, 'HTML is not valid: ' . $html);
+  }
+
+  public function getServiceWithOverrides(string $id, array $overrides) {
+    $instance = $this->diContainer->get($id);
+    return Stub::copy($instance, $overrides);
+  }
+
+  protected function initContainer(): void {
+    $container = new Container();
+    // Start: MailPoet plugin dependencies
+    $container->set(Initializer::class, function() {
+      return new Initializer();
+    });
+    $container->set(CdnAssetUrl::class, function() {
+      return new CdnAssetUrl('http://localhost');
+    });
+    $container->set(EmailApiController::class, function() {
+      return new EmailApiController();
+    });
+    $container->set(BlockTypesController::class, function() {
+      return $this->createMock(BlockTypesController::class);
+    });
+    // End: MailPoet plugin dependencies
+    $container->set(Utils::class, function() {
+      return new Utils();
+    });
+    $container->set(ThemeController::class, function() {
+      return new ThemeController();
+    });
+    $container->set(SettingsController::class, function ($container) {
+      return new SettingsController($container->get(ThemeController::class));
+    });
+    $container->set(SettingsController::class, function ($container) {
+      return new SettingsController($container->get(ThemeController::class));
+    });
+    $container->set(Templates::class, function ($container) {
+      return new Templates($container->get(Utils::class));
+    });
+    $container->set(TemplatePreview::class, function ($container) {
+      return new TemplatePreview(
+        $container->get(ThemeController::class),
+        $container->get(Templates::class),
+      );
+    });
+    $container->set(Patterns::class, function ($container) {
+      return new Patterns(
+        $container->get(CdnAssetUrl::class),
+      );
+    });
+    $container->set(CleanupPreprocessor::class, function () {
+      return new CleanupPreprocessor();
+    });
+    $container->set(BlocksWidthPreprocessor::class, function () {
+      return new BlocksWidthPreprocessor();
+    });
+    $container->set(TypographyPreprocessor::class, function ($container) {
+      return new TypographyPreprocessor($container->get(SettingsController::class));
+    });
+    $container->set(SpacingPreprocessor::class, function () {
+      return new SpacingPreprocessor();
+    });
+    $container->set(HighlightingPostprocessor::class, function () {
+      return new HighlightingPostprocessor();
+    });
+    $container->set(VariablesPostprocessor::class, function ($container) {
+      return new VariablesPostprocessor($container->get(ThemeController::class));
+    });
+    $container->set(ProcessManager::class, function ($container) {
+      return new ProcessManager(
+        $container->get(CleanupPreprocessor::class),
+        $container->get(BlocksWidthPreprocessor::class),
+        $container->get(TypographyPreprocessor::class),
+        $container->get(SpacingPreprocessor::class),
+        $container->get(HighlightingPostprocessor::class),
+        $container->get(VariablesPostprocessor::class),
+      );
+    });
+    $container->set(BlocksRegistry::class, function() {
+      return new BlocksRegistry();
+    });
+    $container->set(ContentRenderer::class, function ($container) {
+      return new ContentRenderer(
+        $container->get(ProcessManager::class),
+        $container->get(BlocksRegistry::class),
+        $container->get(SettingsController::class),
+        $container->get(ThemeController::class),
+      );
+    });
+    $container->set(Renderer::class, function ($container) {
+      return new Renderer(
+        $container->get(ContentRenderer::class),
+        $container->get(Templates::class),
+        $container->get(ThemeController::class),
+      );
+    });
+    $container->set(EmailEditor::class, function ($container) {
+      return new EmailEditor(
+        $container->get(EmailApiController::class),
+        $container->get(Templates::class),
+        $container->get(TemplatePreview::class),
+        $container->get(Patterns::class),
+        $container->get(SettingsController::class),
+      );
+    });
+
+    $this->diContainer = $container;
+  }
+}