[META] Serialization issues in Migration tests

Drupal\Tests\taxonomy\Kernel\Migrate\d7\MigrateTaxonomyTermTest::testTaxonomyTermEntityTranslations PHPUnit\Framework\Exception: PHP Fatal error: Uncaught Exception: Serialization of 'Closure' is not allowed in Standard input code:80 Stack trace: #0 Standard input code(80): serialize(Array) #1 Standard input code(112): __phpunit_run_isolated_test() #2 {main} thrown in Standard input code on line 80 Fatal error: Uncaught Exception: Serialization of 'Closure' is not allowed in Standard input code:80 Stack trace: #0 Standard input code(80): serialize(Array) #1 Standard input code(112): __phpunit_run_isolated_test() #2 {main} thrown in Standard input code on line 80 /var/www/html/vendor/phpunit/phpunit/src/Util/PHP/AbstractPhpProcess.php:254 /var/www/html/vendor/phpunit/phpunit/src/Util/PHP/AbstractPhpProcess.php:171 /var/www/html/vendor/phpunit/phpunit/src/Framework/TestSuite.php:601 /var/www/html/vendor/phpunit/phpunit/src/TextUI/TestRunner.php:633 /var/www/html/vendor/phpunit/phpunit/src/TextUI/Command.php:204 /var/www/html/vendor/phpunit/phpunit/src/TextUI/Command.php:163

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Comment over 1 year ago →
🇩🇪Germany Anybody Porta Westfalica
Just ran into this at 🐛 The migration tests are currently not running Postponed

Comment about 1 year ago →

🇺🇦Ukraine pingwin4eg Zaporizhia 🇺🇦

I also encountered the "container was serialized" issue with a migration test in Style Switcher module with D 9.5.11, PHP 8.1, PHPUnits 8.5.31 (local) and 9.5.28 (DrupalCI):

1) Drupal\Tests\styleswitcher\Kernel\Migrate\d7\MigrateVariablesTest::testVariablesMigration
PHPUnit\Framework\Exception: PHP Fatal error:  Uncaught AssertionError: The container was serialized. in /var/www/html/core/lib/Drupal/Core/DependencyInjection/ContainerBuilder.php:99
Stack trace:
#0 /var/www/html/core/lib/Drupal/Core/DependencyInjection/ContainerBuilder.php(99): assert(false, 'The container w...')
#1 [internal function]: Drupal\Core\DependencyInjection\ContainerBuilder->__sleep()
#2 Standard input code(89): serialize(Array)
#3 Standard input code(123): __phpunit_run_isolated_test()
#4 {main}
  thrown in /var/www/html/core/lib/Drupal/Core/DependencyInjection/ContainerBuilder.php on line 99

When I switched PHP to 7.3 locally I saw the actual error:

1) Drupal\Tests\styleswitcher\Kernel\Migrate\d7\MigrateVariablesTest::testVariablesMigration
PHPUnit\Framework\Exception: PHP Fatal error:  Uncaught LogicException: The database connection is not serializable. This probably means you are serializing an object that has an indirect reference to the database connection. Adjust your code so that is not necessary. Alternatively, look at DependencySerializationTrait as a temporary solution. in /app/core/lib/Drupal/Core/Database/Connection.php:2042
Stack trace:
#0 [internal function]: Drupal\Core\Database\Connection->__sleep()
#1 Standard input code(80): serialize(Array)
#2 Standard input code(112): __phpunit_run_isolated_test()
#3 {main}
  thrown in /app/core/lib/Drupal/Core/Database/Connection.php on line 2042

The workaround was to call $this->startCollectingMessages(); before $this->executeMigrations(...).

Comment about 1 year ago →
🇳🇱Netherlands johnv
Relating to another meta issue [33400483]

[META] Serialization issues in Migration tests

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