fix: add lowercase acceptance directory

tests/acceptance/ActivationCest.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace Tests\Acceptance;
+
+use Tests\Support\AcceptanceTester;
+
+class ActivationCest
+{
+    /**
+     * @group plugin
+     */
+    public function test_it_deactivates_activates_correctly(AcceptanceTester $I): void
+    {
+        $I->loginAsAdmin();
+        $I->amOnPluginsPage();
+
+        $I->seePluginActivated('indexed-search');
+
+        $I->deactivatePlugin('indexed-search');
+
+        $I->seePluginDeactivated('indexed-search');
+
+        $I->activatePlugin('indexed-search');
+
+        $I->seePluginActivated('indexed-search');
+    }
+}

tests/acceptance/_bootstrap.php

@@ -0,0 +1,18 @@
+<?php
+/*
+ * Acceptance suite bootstrap file.
+ *
+ * This file is loaded AFTER the suite modules are initialized and WordPress has been loaded by the WPLoader module.
+ *
+ * The initial state of the WordPress site is the one set up by the dump file(s) loaded by the WPDb module, look for the
+ * "modules.config.WPDb.dump" setting in the suite configuration file. The database will be dropped after each test
+ * and re-created from the dump file(s).
+ *
+ * You can modify and create new dump files using the `vendor/bin/codecept wp:cli Acceptance <wp-cli command>` command
+ * to run WP-CLI commands on the WordPress site and database used by the Acceptance suite.
+ * E.g.:
+ * `vendor/bin/codecept wp:cli Acceptance db import tests/Support/Data/dump.sql` to load  dump file.
+ * `vendor/bin/codecept wp:cli Acceptance plugin activate woocommerce` to activate the WooCommerce plugin.
+ * `vendor/bin/codecept wp:cli Acceptance user create alice [email protected] --role=administrator` to create a new user.
+ * `vendor/bin/codecept wp:cli Acceptance db export tests/Support/Data/dump.sql` to update the dump file.
+ */