function KernelTestBase::allocateSharedDatabase

Allocates one database prefix for the whole test class.

Attributes

File

core/tests/Drupal/KernelTests/KernelTestBase.php, line 301

Class

KernelTestBase

Base class for functional integration tests.

Namespace

Code

public static function allocateSharedDatabase() : void {
  if (!static::sharesEnvironment()) {
    return;
  }
  // PHPUnit runs this once in the test runner process, before it forks the
  // first test method, and once again inside every forked process. The runner
  // process allocates the prefix and exports it; the forked processes inherit
  // the environment and read it back.
  if (getenv(self::SHARED_DATABASE_PREFIX_ENV) !== FALSE) {
    // A forked test method process: the prefix is already allocated.
    return;
  }
  // Force a lock. This prefix stays in use for as long as the whole test
  // class runs, so it has to be reserved against concurrent test runners.
  $test_database = new TestDatabase(NULL, create_lock: TRUE);
  putenv(self::SHARED_DATABASE_PREFIX_ENV . '=' . $test_database->getDatabasePrefix() . ':' . getmypid());
}