Improved test structure

src/tests/custom/general/startup.py

@@ -0,0 +1,52 @@
+from typing import Optional
+
+from cpl.application.application_host import ApplicationHost
+from cpl.application.application_host_abc import ApplicationHostABC
+from cpl.application.startup_abc import StartupABC
+from cpl.configuration.configuration_abc import ConfigurationABC
+from cpl.database.context.database_context import DatabaseContext
+from cpl.database.database_settings import DatabaseSettings
+from cpl.dependency_injection.service_provider_abc import ServiceProviderABC
+from cpl.logging.logger_service import Logger
+from cpl.logging.logger_abc import LoggerABC
+from cpl.mailing.email_client_service import EMailClient
+from cpl.mailing.email_client_abc import EMailClientABC
+from cpl.utils.credential_manager import CredentialManager
+
+
+class Startup(StartupABC):
+
+    def __init__(self):
+        StartupABC.__init__(self)
+
+        self._app_host: Optional[ApplicationHostABC] = None
+        self._configuration: Optional[ConfigurationABC] = None
+        self._services: Optional[ServiceProviderABC] = None
+
+    def create_application_host(self) -> ApplicationHostABC:
+        self._app_host = ApplicationHost()
+        self._configuration = self._app_host.configuration
+        self._services = self._app_host.services
+        return self._app_host
+
+    def create_configuration(self) -> ConfigurationABC:
+        self._configuration.add_environment_variables('PYTHON_')
+        self._configuration.add_environment_variables('CPL_')
+        self._configuration.add_console_arguments()
+        self._configuration.add_json_file(f'appsettings.json')
+        self._configuration.add_json_file(f'appsettings.{self._configuration.environment.environment_name}.json')
+        self._configuration.add_json_file(f'appsettings.{self._configuration.environment.host_name}.json', optional=True)
+
+        return self._configuration
+
+    def create_services(self) -> ServiceProviderABC:
+        # Create and connect to database
+        db_settings: DatabaseSettings = self._configuration.get_configuration(DatabaseSettings)
+        self._services.add_db_context(DatabaseContext)
+        db: DatabaseContext = self._services.get_db_context()
+        db.connect(CredentialManager.build_string(db_settings.connection_string, db_settings.credentials))
+
+        self._services.add_singleton(LoggerABC, Logger)
+        self._services.add_singleton(EMailClientABC, EMailClient)
+
+        return self._services