This documentation is for an unreleased version of MPF!

This is the developer documentation for MPF 0.54, which is the “dev” (next) release of MPF that is a work-in-progress. Use the “Read the Docs” link in the lower left corner to view the developer docs for the version of MPF you’re using.


class mpf.tests.TestDataManager.TestDataManager(data)

Bases: mpf.core.data_manager.DataManager

A patched version of the DataManager which is used in unit tests.

The main change is that the save_all() method doesn’t actually write anything to disk so the tests don’t fill up the disk with unneeded data.

Methods & Attributes

The TestDataManager has the following methods & attributes available. Note that methods & attributes inherited from the base class are not included here.

format_log_line(msg, context, error_no) → str

Return a formatted log line with log link and context.


Return the value of this DataManager’s data.

Parameters:section – Optional string name of a section (dictionary key) for the data you want returned. Default is None which returns the entire dictionary.
ignorable_runtime_exception(msg: str) → None

Handle ignorable runtime exception.

During development or tests raise an exception for easier debugging. Log an error during production.

raise_config_error(msg, error_no, *, context=None) → NoReturn

Raise a ConfigFileError exception.


Update all data.

warning_log(msg: str, *args, context=None, error_no=None, **kwargs) → None

Log a message at the warning level.

These messages will always be shown in the console and the log file.