Fatal error: Class 'Drupal\Core\Database\DatabaseNotFoundException' not found

Steps to reproduce:

• Create a new instance without a database already created.
• Start a new instance, using a name of the database with a '-'.
• Database is created, dropping the '-'; ie: d8-2 becomes d82.
• The full database does not create.

Creates 25 tables:

show tables;
+------------------+
| Tables_in_d82 |
+------------------+
| batch |
| cache |
| cache_bootstrap |
| cache_config |
| cache_form |
| cache_menu |
| cache_page |
| cache_path |
| cache_tags |
| config_snapshot |
| flood |
| key_value |
| key_value_expire |
| menu_router |
| queue |
| role_permission |
| router |
| semaphore |
| sequences |
| sessions |
| url_alias |
| users |
| users_data |
| users_roles |
| variable |
+------------------+
25 rows in set (0.00 sec)

Error received: Fatal error: Class 'Drupal\Core\Database\DatabaseNotFoundException' not found in /my_site/core/lib/Drupal/Core/Database/Driver/mysql/Connection.php on line 142

Call Stack
#TimeMemoryFunctionLocation10.0001643280{main}( )../install.php:020.00221387824install_drupal( )../install.php:3630.00221392912install_begin_request( )../install.core.inc:8440.02166892216install_verify_database_settings( )../install.core.inc:30250.02166892312install_database_errors( )../install.core.inc:94460.02407447304db_run_tasks( )../install.core.inc:107770.02407447864Drupal\Core\Database\Install\Tasks->runTasks( )../install.inc:94980.02407447864Drupal\Core\Database\Driver\mysql\Install\Tasks->connect( )../Tasks.php:12990.02647920008Drupal\Core\Database\Driver\mysql\Connection->createDatabase( )../Tasks.php:68

Need to check for "legal characters" in database name string.