Behat/Gherkin — comment on commit d9d9ef7358df4fe4cada55afc351eb9253233348
File: src/Behat/Gherkin/Keywords/CucumberKeywords.php line 107
By everzet:

Keyword string could be null only in one case - if wrong translation definition provided. And i don't really care in such cases - translations shouldn't change a lot and there's unit tests across the project to ensure that bundled translations are always correct.