diff --git a/tests/src/Drupal8/Rector/Deprecation/EntityManagerRector/EntityManagerRectorTest.php b/tests/src/Drupal8/Rector/Deprecation/EntityManagerRector/EntityManagerRectorTest.php
new file mode 100644
index 00000000..a76d0dc2
--- /dev/null
+++ b/tests/src/Drupal8/Rector/Deprecation/EntityManagerRector/EntityManagerRectorTest.php
@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal8\Rector\Deprecation\EntityManagerRector;
+
+use Iterator;
+use Rector\Testing\PHPUnit\AbstractRectorTestCase;
+
+class EntityManagerRectorTest extends AbstractRectorTestCase
+{
+    /**
+     * @covers ::refactor
+     *
+     * @dataProvider provideData
+     */
+    public function test(string $filePath): void
+    {
+        $this->doTestFile($filePath);
+    }
+
+    /**
+     * @return Iterator<<string>>
+     */
+    public static function provideData(): \Iterator
+    {
+        return self::yieldFilesFromDirectory(__DIR__.'/fixture');
+    }
+
+    public function provideConfigFilePath(): string
+    {
+        // must be implemented
+        return __DIR__.'/config/configured_rule.php';
+    }
+}
diff --git a/tests/src/Drupal8/Rector/Deprecation/EntityManagerRector/config/configured_rule.php b/tests/src/Drupal8/Rector/Deprecation/EntityManagerRector/config/configured_rule.php
new file mode 100644
index 00000000..9c64ac81
--- /dev/null
+++ b/tests/src/Drupal8/Rector/Deprecation/EntityManagerRector/config/configured_rule.php
@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+use DrupalRector\Drupal8\Rector\Deprecation\EntityManagerRector;
+use DrupalRector\Drupal8\Rector\Deprecation\EntityViewRector;
+use DrupalRector\Tests\Rector\Deprecation\DeprecationBase;
+use Rector\Config\RectorConfig;
+
+return static function (RectorConfig $rectorConfig): void {
+    // $rectorConfig->rule(EntityViewRector::class);
+    DeprecationBase::addClass(EntityManagerRector::class, $rectorConfig, false);
+};
diff --git a/tests/src/Drupal8/Rector/Deprecation/EntityManagerRector/fixture/arguments_member_values.php.inc b/tests/src/Drupal8/Rector/Deprecation/EntityManagerRector/fixture/arguments_member_values.php.inc
new file mode 100644
index 00000000..61ecffba
--- /dev/null
+++ b/tests/src/Drupal8/Rector/Deprecation/EntityManagerRector/fixture/arguments_member_values.php.inc
@@ -0,0 +1,518 @@
+<?php
+
+namespace Drupal\acquia_contenthub\Commands;
+
+use Acquia\ContentHubClient\ContentHubClient;
+use Drupal\acquia_contenthub\AcquiaContentHubEvents;
+use Drupal\acquia_contenthub\Client\ClientFactory;
+use Drupal\acquia_contenthub\ContentHubConnectionManager;
+use Drupal\acquia_contenthub\Event\AcquiaContentHubUnregisterEvent;
+use Drupal\acquia_contenthub\Form\ContentHubSettingsForm;
+use Drupal\acquia_contenthub\Settings\ContentHubConfigurationInterface;
+use Drupal\Core\Form\FormBuilderInterface;
+use Drupal\Core\Form\FormState;
+use Drush\Commands\DrushCommands;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+
+/**
+ * Drush commands for interacting with Acquia Content Hub client site.
+ *
+ * @package Drupal\acquia_contenthub\Commands
+ */
+class AcquiaContentHubSiteCommands extends DrushCommands {
+
+    /**
+     * The client factory.
+     *
+     * @var \Drupal\acquia_contenthub\Client\ClientFactory
+     */
+    protected $clientFactory;
+
+    /**
+     * Event dispatcher.
+     *
+     * @var \Symfony\Component\EventDispatcher\EventDispatcherInterface
+     */
+    protected $eventDispatcher;
+
+    /**
+     * ACH connection manager.
+     *
+     * @var \Drupal\acquia_contenthub\ContentHubConnectionManager
+     */
+    protected $achConnectionManager;
+
+    /**
+     * CH configurations.
+     *
+     * @var \Drupal\acquia_contenthub\Settings\ContentHubConfigurationInterface
+     */
+    protected ContentHubConfigurationInterface $achConfigurations;
+
+    /**
+     * The form builder.
+     *
+     * @var \Drupal\Core\Form\FormBuilderInterface
+     */
+    protected FormBuilderInterface $formBuilder;
+
+    /**
+     * AcquiaContentHubSiteCommands constructor.
+     *
+     * @param \Drupal\acquia_contenthub\Client\ClientFactory $client_factory
+     *   ACH client factory.
+     * @param \Symfony\Component\EventDispatcher\EventDispatcherInterface $eventDispatcher
+     *   Symfony event dispatcher.
+     * @param \Drupal\acquia_contenthub\ContentHubConnectionManager $achConnectionManager
+     *   ACH connection manager.
+     * @param \Drupal\acquia_contenthub\Settings\ContentHubConfigurationInterface $ach_configuration
+     *   CH configurations.
+     * @param \Drupal\Core\Form\FormBuilderInterface $form_builder
+     *   Form builder..
+     */
+    public function __construct(ClientFactory $client_factory, EventDispatcherInterface $eventDispatcher, ContentHubConnectionManager $achConnectionManager, ContentHubConfigurationInterface $ach_configuration, FormBuilderInterface $form_builder) {
+        $this->clientFactory = $client_factory;
+        $this->eventDispatcher = $eventDispatcher;
+        $this->achConnectionManager = $achConnectionManager;
+        $this->achConfigurations = $ach_configuration;
+        $this->formBuilder = $form_builder;
+    }
+
+    /**
+     * Connects a site with contenthub.
+     *
+     * @command acquia:contenthub-connect-site
+     * @aliases ach-connect,acquia-contenthub-connect-site
+     *
+     * @option $hostname
+     *   Content Hub API URL.
+     * @default $hostname null
+     *
+     * @option $api_key
+     *   Content Hub API Key.
+     * @default $api_key null
+     *
+     * @option $secret_key
+     *   Content Hub API Secret.
+     * @default $secret_key null
+     *
+     * @option $client_name
+     *   The client name for this site.
+     * @default $client_name null
+     *
+     * @usage ach-connect
+     *   hostname, api_key, secret_key, client_name will be requested.
+     * @usage ach-connect --hostname=https://us-east-1.content-hub.acquia.com
+     *   api_key, secret_key, client_name will be requested.
+     * @usage ach-connect --hostname=https://us-east-1.content-hub.acquia.com --api_key=API_KEY
+     *   --secret_key=SECRET_KEY --client_name=CLIENT_NAME Connects site with
+     *   following credentials.
+     */
+    public function contenthubConnectSite() {
+        $options = $this->input()->getOptions();
+
+        // @todo Revisit initial connection logic with our event subscibers.
+        $settings = $this->achConfigurations->getSettings();
+        $config_origin = $settings->getUuid();
+
+        $provider = $this->achConfigurations->getProvider();
+        if ($provider != 'core_config') {
+            $message = dt('Settings are being provided by @provider, and already connected.', ['@provider' => $provider]);
+            $this->logger()->warning($message);
+            return;
+        }
+
+        if (!empty($config_origin)) {
+            $message = dt('Site is already connected to Content Hub. Skipping.');
+            $this->logger()->warning($message);
+            return;
+        }
+
+        $io = $this->io();
+        $hostname = $options['hostname'] ?? $io->ask(
+            dt('What is the Content Hub API URL?'),
+            'https://us-east-1.content-hub.acquia.com'
+        );
+        $api_key = $options['api_key'] ?? $io->ask(
+            dt('What is your Content Hub API Key?')
+        );
+        $secret_key = $options['secret_key'] ?? $io->ask(
+            dt('What is your Content Hub API Secret?')
+        );
+
+        $client_name = $options['client_name'] ?? $io->ask(
+            dt('What is the client name for this site?'),
+        );
+
+        $form_state = (new FormState())->setValues([
+            'hostname' => $hostname,
+            'api_key' => $api_key,
+            'secret_key' => $secret_key,
+            'client_name' => $client_name,
+            'op' => 'Save configuration',
+        ]);
+
+        // @todo Errors handling can be improved after relocation of registration
+        // logic into separate service.
+        $new_form_state = new FormState();
+        $form = $this->formBuilder->buildForm(ContentHubSettingsForm::class, $new_form_state);
+        $form_state->setTriggeringElement($form['actions']['submit']);
+        $this->formBuilder->submitForm(ContentHubSettingsForm::class, $form_state);
+    }
+
+    /**
+     * Disconnects a site with contenthub.
+     *
+     * @option delete
+     *   Flag to delete all the entities from Content Hub.
+     * @default delete
+     *
+     * @command acquia:contenthub-disconnect-site
+     * @aliases ach-disconnect,acquia-contenthub-disconnect-site
+     */
+    public function contenthubDisconnectSite() {
+        $client = $this->clientFactory->getClient();
+
+        if (!$client instanceof ContentHubClient) {
+            $message = "Couldn't instantiate client. Please check connection settings.";
+            $this->logger->warning($message);
+            return;
+        }
+
+        $provider = $this->achConfigurations->getProvider();
+        if ($provider != 'core_config') {
+            $message = dt(
+                'Settings are being provided by %provider and cannot be disconnected manually.',
+                ['%provider' => $provider]
+            );
+            $this->logger->warning($message);
+            return;
+        }
+
+        $client = $this->clientFactory->getClient();
+        $settings = $client->getSettings();
+        $remote_settings = $client->getRemoteSettings();
+
+        foreach ($remote_settings['webhooks'] as $webhook) {
+            // Checks that webhook from settings and url from options are matching.
+            $uri_option = $this->input->getOption('uri');
+            if ($uri_option && $settings->getWebhook() !== $uri_option) {
+                continue;
+            }
+
+            if ($webhook['client_name'] === $settings->getName()) {
+                $webhook_uuid = $webhook['uuid'];
+                break;
+            }
+        }
+
+        if (empty($webhook_uuid)) {
+            $this->logger->error('Cannot find webhook UUID.');
+            return;
+        }
+
+        $event = new AcquiaContentHubUnregisterEvent($webhook_uuid);
+        $this->eventDispatcher->dispatch($event, AcquiaContentHubEvents::ACH_UNREGISTER);
+
+        try {
+            $delete = $this->input->getOption('delete');
+            if ($delete === 'all') {
+                $warning_message = dt('This command will delete ALL the entities published by this origin before unregistering the client. There is no way back from this action. It might take a while depending how many entities originated from this site. Are you sure you want to proceed (Y/n)?');
+                if ($this->io()->confirm($warning_message) === FALSE) {
+                    $this->logger->error('Cancelled.');
+                    return;
+                }
+                foreach ($event->getOrphanedEntities() as $entity) {
+                    if ($entity['type'] === 'client') {
+                        continue;
+                    }
+                    $client->deleteEntity($entity['uuid']);
+                }
+            }
+
+            if ($event->getOrphanedEntitiesAmount() > 0 && $delete !== 'all') {
+                $message = sprintf('There are %s entities published from this origin. You have to delete/reoriginate those entities before proceeding with the unregistration. If you want to delete those entities and unregister the client, use the following drush command "drush ach-disconnect --delete=all".',
+                    $event->getOrphanedEntitiesAmount()
+                );
+                $this->logger->warning($message);
+                return;
+            }
+
+            $this->achConnectionManager->unregister($event);
+        }
+        catch (\Exception $exception) {
+            $this->logger->error($exception->getMessage());
+        }
+
+        $client_name = $this->achConfigurations->getConnectionDetails()->getClientName();
+        $this->achConfigurations->getContentHubConfig()->invalidateContentHubSettings();
+
+        $message = dt(
+            'Successfully disconnected site %site from contenthub',
+            ['%site' => $client_name]
+        );
+        $this->logger->notice($message);
+    }
+
+}
+?>
+-----
+<?php
+<?php
+
+namespace Drupal\acquia_contenthub\Commands;
+
+use Acquia\ContentHubClient\ContentHubClient;
+use Drupal\acquia_contenthub\AcquiaContentHubEvents;
+use Drupal\acquia_contenthub\Client\ClientFactory;
+use Drupal\acquia_contenthub\ContentHubConnectionManager;
+use Drupal\acquia_contenthub\Event\AcquiaContentHubUnregisterEvent;
+use Drupal\acquia_contenthub\Form\ContentHubSettingsForm;
+use Drupal\acquia_contenthub\Settings\ContentHubConfigurationInterface;
+use Drupal\Core\Form\FormBuilderInterface;
+use Drupal\Core\Form\FormState;
+use Drush\Commands\DrushCommands;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+
+/**
+ * Drush commands for interacting with Acquia Content Hub client site.
+ *
+ * @package Drupal\acquia_contenthub\Commands
+ */
+class AcquiaContentHubSiteCommands extends DrushCommands {
+
+    /**
+     * The client factory.
+     *
+     * @var \Drupal\acquia_contenthub\Client\ClientFactory
+     */
+    protected $clientFactory;
+
+    /**
+     * Event dispatcher.
+     *
+     * @var \Symfony\Component\EventDispatcher\EventDispatcherInterface
+     */
+    protected $eventDispatcher;
+
+    /**
+     * ACH connection manager.
+     *
+     * @var \Drupal\acquia_contenthub\ContentHubConnectionManager
+     */
+    protected $achConnectionManager;
+
+    /**
+     * CH configurations.
+     *
+     * @var \Drupal\acquia_contenthub\Settings\ContentHubConfigurationInterface
+     */
+    protected ContentHubConfigurationInterface $achConfigurations;
+
+    /**
+     * The form builder.
+     *
+     * @var \Drupal\Core\Form\FormBuilderInterface
+     */
+    protected FormBuilderInterface $formBuilder;
+
+    /**
+     * AcquiaContentHubSiteCommands constructor.
+     *
+     * @param \Drupal\acquia_contenthub\Client\ClientFactory $client_factory
+     *   ACH client factory.
+     * @param \Symfony\Component\EventDispatcher\EventDispatcherInterface $eventDispatcher
+     *   Symfony event dispatcher.
+     * @param \Drupal\acquia_contenthub\ContentHubConnectionManager $achConnectionManager
+     *   ACH connection manager.
+     * @param \Drupal\acquia_contenthub\Settings\ContentHubConfigurationInterface $ach_configuration
+     *   CH configurations.
+     * @param \Drupal\Core\Form\FormBuilderInterface $form_builder
+     *   Form builder..
+     */
+    public function __construct(ClientFactory $client_factory, EventDispatcherInterface $eventDispatcher, ContentHubConnectionManager $achConnectionManager, ContentHubConfigurationInterface $ach_configuration, FormBuilderInterface $form_builder) {
+        $this->clientFactory = $client_factory;
+        $this->eventDispatcher = $eventDispatcher;
+        $this->achConnectionManager = $achConnectionManager;
+        $this->achConfigurations = $ach_configuration;
+        $this->formBuilder = $form_builder;
+    }
+
+    /**
+     * Connects a site with contenthub.
+     *
+     * @command acquia:contenthub-connect-site
+     * @aliases ach-connect,acquia-contenthub-connect-site
+     *
+     * @option $hostname
+     *   Content Hub API URL.
+     * @default $hostname null
+     *
+     * @option $api_key
+     *   Content Hub API Key.
+     * @default $api_key null
+     *
+     * @option $secret_key
+     *   Content Hub API Secret.
+     * @default $secret_key null
+     *
+     * @option $client_name
+     *   The client name for this site.
+     * @default $client_name null
+     *
+     * @usage ach-connect
+     *   hostname, api_key, secret_key, client_name will be requested.
+     * @usage ach-connect --hostname=https://us-east-1.content-hub.acquia.com
+     *   api_key, secret_key, client_name will be requested.
+     * @usage ach-connect --hostname=https://us-east-1.content-hub.acquia.com --api_key=API_KEY
+     *   --secret_key=SECRET_KEY --client_name=CLIENT_NAME Connects site with
+     *   following credentials.
+     */
+    public function contenthubConnectSite() {
+        $options = $this->input()->getOptions();
+
+        // @todo Revisit initial connection logic with our event subscibers.
+        $settings = $this->achConfigurations->getSettings();
+        $config_origin = $settings->getUuid();
+
+        $provider = $this->achConfigurations->getProvider();
+        if ($provider != 'core_config') {
+            $message = dt('Settings are being provided by @provider, and already connected.', ['@provider' => $provider]);
+            $this->logger()->warning($message);
+            return;
+        }
+
+        if (!empty($config_origin)) {
+            $message = dt('Site is already connected to Content Hub. Skipping.');
+            $this->logger()->warning($message);
+            return;
+        }
+
+        $io = $this->io();
+        $hostname = $options['hostname'] ?? $io->ask(
+            dt('What is the Content Hub API URL?'),
+            'https://us-east-1.content-hub.acquia.com'
+        );
+        $api_key = $options['api_key'] ?? $io->ask(
+            dt('What is your Content Hub API Key?')
+        );
+        $secret_key = $options['secret_key'] ?? $io->ask(
+            dt('What is your Content Hub API Secret?')
+        );
+
+        $client_name = $options['client_name'] ?? $io->ask(
+            dt('What is the client name for this site?'),
+        );
+
+        $form_state = (new FormState())->setValues([
+            'hostname' => $hostname,
+            'api_key' => $api_key,
+            'secret_key' => $secret_key,
+            'client_name' => $client_name,
+            'op' => 'Save configuration',
+        ]);
+
+        // @todo Errors handling can be improved after relocation of registration
+        // logic into separate service.
+        $new_form_state = new FormState();
+        $form = $this->formBuilder->buildForm(ContentHubSettingsForm::class, $new_form_state);
+        $form_state->setTriggeringElement($form['actions']['submit']);
+        $this->formBuilder->submitForm(ContentHubSettingsForm::class, $form_state);
+    }
+
+    /**
+     * Disconnects a site with contenthub.
+     *
+     * @option delete
+     *   Flag to delete all the entities from Content Hub.
+     * @default delete
+     *
+     * @command acquia:contenthub-disconnect-site
+     * @aliases ach-disconnect,acquia-contenthub-disconnect-site
+     */
+    public function contenthubDisconnectSite() {
+        $client = $this->clientFactory->getClient();
+
+        if (!$client instanceof ContentHubClient) {
+            $message = "Couldn't instantiate client. Please check connection settings.";
+            $this->logger->warning($message);
+            return;
+        }
+
+        $provider = $this->achConfigurations->getProvider();
+        if ($provider != 'core_config') {
+            $message = dt(
+                'Settings are being provided by %provider and cannot be disconnected manually.',
+                ['%provider' => $provider]
+            );
+            $this->logger->warning($message);
+            return;
+        }
+
+        $client = $this->clientFactory->getClient();
+        $settings = $client->getSettings();
+        $remote_settings = $client->getRemoteSettings();
+
+        foreach ($remote_settings['webhooks'] as $webhook) {
+            // Checks that webhook from settings and url from options are matching.
+            $uri_option = $this->input->getOption('uri');
+            if ($uri_option && $settings->getWebhook() !== $uri_option) {
+                continue;
+            }
+
+            if ($webhook['client_name'] === $settings->getName()) {
+                $webhook_uuid = $webhook['uuid'];
+                break;
+            }
+        }
+
+        if (empty($webhook_uuid)) {
+            $this->logger->error('Cannot find webhook UUID.');
+            return;
+        }
+
+        $event = new AcquiaContentHubUnregisterEvent($webhook_uuid);
+        $this->eventDispatcher->dispatch($event, AcquiaContentHubEvents::ACH_UNREGISTER);
+
+        try {
+            $delete = $this->input->getOption('delete');
+            if ($delete === 'all') {
+                $warning_message = dt('This command will delete ALL the entities published by this origin before unregistering the client. There is no way back from this action. It might take a while depending how many entities originated from this site. Are you sure you want to proceed (Y/n)?');
+                if ($this->io()->confirm($warning_message) === FALSE) {
+                    $this->logger->error('Cancelled.');
+                    return;
+                }
+                foreach ($event->getOrphanedEntities() as $entity) {
+                    if ($entity['type'] === 'client') {
+                        continue;
+                    }
+                    $client->deleteEntity($entity['uuid']);
+                }
+            }
+
+            if ($event->getOrphanedEntitiesAmount() > 0 && $delete !== 'all') {
+                $message = sprintf('There are %s entities published from this origin. You have to delete/reoriginate those entities before proceeding with the unregistration. If you want to delete those entities and unregister the client, use the following drush command "drush ach-disconnect --delete=all".',
+                    $event->getOrphanedEntitiesAmount()
+                );
+                $this->logger->warning($message);
+                return;
+            }
+
+            $this->achConnectionManager->unregister($event);
+        }
+        catch (\Exception $exception) {
+            $this->logger->error($exception->getMessage());
+        }
+
+        $client_name = $this->achConfigurations->getConnectionDetails()->getClientName();
+        $this->achConfigurations->getContentHubConfig()->invalidateContentHubSettings();
+
+        $message = dt(
+            'Successfully disconnected site %site from contenthub',
+            ['%site' => $client_name]
+        );
+        $this->logger->notice($message);
+    }
+
+}
+?>