Issue #3278001 by andrei.vesterli, mrkolea: Fix the NULL store when running tests

src/Plugin/DevelGenerate/CommerceDevelGenerate.php

@@ -5,6 +5,7 @@ namespace Drupal\devel_generate_commerce\Plugin\DevelGenerate;
 use Drupal\commerce_order\Adjustment;
 use Drupal\commerce_price\Price;
 use Drupal\commerce_store\Entity\StoreInterface;
+use Drupal\commerce_store\StoreCreationTrait;
 use Drupal\Component\Datetime\TimeInterface;
 use Drupal\Core\Datetime\DateFormatterInterface;
 use Drupal\Core\Entity\EntityTypeManagerInterface;
@@ -37,6 +38,8 @@ use Symfony\Component\DependencyInjection\ContainerInterface;
  */
 class CommerceDevelGenerate extends DevelGenerateBase implements ContainerFactoryPluginInterface {
 
+  use StoreCreationTrait;
+
   /**
    * The user storage.
    *
@@ -105,25 +108,9 @@ class CommerceDevelGenerate extends DevelGenerateBase implements ContainerFactor
       ->getStorage('commerce_store')
       ->loadDefault();
 
-    // If there is no store, we need to create one and set it as default.
+    // If there is no default store, we need to create one.
     if (!$this->store instanceof StoreInterface) {
-      // Set a random store name.
-      $name = $this->getRandom()->word(mt_rand(6, 12));
-      // Set a random store email address.
-      $email = $name . '@example.com';
-
-      $this->store = $this
-        ->entityTypeManager
-        ->getStorage('commerce_store')
-        ->create([
-          'type' => 'online',
-          'uid' => 1,
-          'name' => $name,
-          'mail' => $email,
-          'default_currency' => 'USD',
-          'is_default' => TRUE,
-        ]);
-      $this->store->save();
+      $this->store = $this->createStore('Default store', 'default_store@example.com');
     }
   }
 
@@ -239,7 +226,7 @@ class CommerceDevelGenerate extends DevelGenerateBase implements ContainerFactor
       '#type' => 'select',
       '#name' => 'order_workflow',
       '#options' => $order_workflows,
-      // '#title' => $this->t('Order workflow'),
+      '#title' => '',
       '#description' => $this->t('Select the order workflow.'),
       '#weight' => -1,
     ];
@@ -415,7 +402,6 @@ class CommerceDevelGenerate extends DevelGenerateBase implements ContainerFactor
       // Get a random order workflow status.
       $order_workflow_status = array_rand($order_workflow_statuses, 1);
       $email = $this->store->getEmail();
-
       // Order data preparation for saving.
       $order = $this->entityTypeManager
         ->getStorage('commerce_order')->create([
@@ -427,7 +413,6 @@ class CommerceDevelGenerate extends DevelGenerateBase implements ContainerFactor
           'placed' => $this->time->getRequestTime() - mt_rand(0, $time_range),
         ]);
       $currency = $this->store->getDefaultCurrencyCode();
-
       // Add a dummy order adjustment.
       $order->addAdjustment(new Adjustment([
         'type' => 'tax',