Version 5.0a3 — 2018-10-06
- Context support: static contexts let you specify a label for a coverage run, which is recorded in the data, and retained when you combine files. See Measurement contexts for more information.
- Dynamic contexts: specifying
[run] dynamic_context = test_functionin the config file will record the test function name as a dynamic context during execution. This is the core of “Who Tests What” (issue 170). Things to note:- There is no reporting support yet. Use SQLite to query the .coverage file for information. Ideas are welcome about how reporting could be extended to use this data.
- There’s a noticeable slow-down before any test is run.
- Data files will now be roughly N times larger, where N is the number of tests you have. Combining data files is therefore also N times slower.
- No other values for
dynamic_contextare recognized yet. Let me know what else would be useful. I’d like to use a pytest plugin to get better information directly from pytest, for example.
- Environment variable substitution in configuration files now supports two syntaxes for controlling the behavior of undefined variables: if
VARNAMEis not defined,${VARNAME?}will raise an error, and${VARNAME-default value}will use “default value”. - Partial support for Python 3.8, which has not yet released an alpha. Fixes issue 707 and issue 714.
➡️ PyPI page: coverage 5.0a3.
➡️ To install: python3 -m pip install coverage==5.0a3