Update phpstan to level 5

[MAILPOET-1969]

RoboFile.php

@@ -378,7 +378,7 @@ class RoboFile extends \Robo\Tasks {
         'php -d memory_limit=2G '.
         "$dir/phpstan.phar analyse ".
         "--configuration $dir/tasks/phpstan/phpstan.neon ".
-        '--level 4 '.
+        '--level 5 '.
         "$dir/lib"
       )
       ->dir(__DIR__ . '/tasks/phpstan')

lib/Subscribers/ImportExport/Import/MailChimp.php

@@ -25,7 +25,8 @@ class MailChimp {
       return $this->throwException('API');
     }
 
-    $connection = @fopen(sprintf($this->lists_url, $this->data_center, $this->api_key), 'r');
+    $url = sprintf($this->lists_url, $this->data_center, $this->api_key);
+    $connection = @fopen($url, 'r');
 
     if (!$connection) {
       return $this->throwException('connection');
@@ -87,7 +88,7 @@ class MailChimp {
             }
             if (!isset($header_hash)) {
               $header_hash = md5(implode(',', $header));
-            } elseif (md5(implode(',', $header) !== $header_hash)) {
+            } elseif (md5(implode(',', $header)) !== $header_hash) {
               return $this->throwException('headers');
             }
           } else {

lib/Util/FreeDomains.php

@@ -53,7 +53,8 @@ class FreeDomains {
   ];
 
   function isEmailOnFreeDomain($email) {
-    $domain = end(explode('@', $email));
+    $email_parts = explode('@', $email);
+    $domain = end($email_parts);
     return in_array($domain, self::FREE_DOMAINS);
   }
 

tasks/phpstan/PremiumContainerConfigurator.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace MailPoet\Premium\DI;
+
+use MailPoet\DI\IContainerConfigurator;
+use MailPoetVendor\Symfony\Component\DependencyInjection\ContainerBuilder;
+
+class ContainerConfigurator implements IContainerConfigurator{
+  function configure(ContainerBuilder $container)
+  {
+  }
+
+  function getDumpNamespace()
+  {
+  }
+
+  function getDumpClassname()
+  {
+  }
+}

tasks/phpstan/bootstrap.php

@@ -4,6 +4,9 @@ define('ABSPATH', getenv('WP_ROOT') . '/');
 
 require_once ABSPATH . 'wp-load.php';
 require_once ABSPATH . 'wp-admin/includes/admin.php';
+if(!class_exists('\MailPoet\Premium\DI\ContainerConfigurator')) {
+  require_once './PremiumContainerConfigurator.php';
+}
 
 function wc_get_customer_order_count(int $user_id): int {
   return 0;
@@ -20,3 +23,4 @@ function wc_get_order($order = false) {
 function wc_price(float $price, array $args = []): string {
   return '';
 }
+

tests/integration/Subscribers/ImportExport/Import/MailChimpTest.php

@@ -65,14 +65,14 @@ class MailChimpTest extends \MailPoetTest {
     if (getenv('WP_TEST_ENABLE_NETWORK_TESTS') !== 'true') return;
 
     try {
-      $subscribers = $this->mailchimp->getSubscribers();
+      $this->mailchimp->getSubscribers();
       $this->fail('MailChimp getSubscribers() did not throw an exception');
     } catch (\Exception $e) {
       expect($e->getMessage())->contains('Did not find any valid lists');
     }
 
     try {
-      $subscribers = $this->mailchimp->getSubscribers(array(12));
+      $this->mailchimp->getSubscribers(array(12));
       $this->fail('MailChimp getSubscribers() did not throw an exception');
     } catch (\Exception $e) {
       expect($e->getMessage())->contains('Did not find any valid lists');
@@ -95,18 +95,6 @@ class MailChimpTest extends \MailPoetTest {
     expect($subscribers['subscribersCount'])->equals(1);
   }
 
-  function testItFailsWhenListHeadersDontMatch() {
-    if (getenv('WP_TEST_ENABLE_NETWORK_TESTS') !== 'true') return;
-
-    try {
-      $subscribers = $this->mailchimp->getSubscribers($this->lists);
-      $this->fail('MailChimp getSubscribers() did not throw an exception');
-    } catch (\Exception $e) {
-      expect($e->getMessage())
-        ->contains('The selected lists do not have matching columns (headers)');
-    }
-  }
-
   function testItFailsWhenSubscribersDataTooLarge() {
     if (getenv('WP_TEST_ENABLE_NETWORK_TESTS') !== 'true') return;
     $mailchimp = clone($this->mailchimp);