When I first added localization-file conversion, the job looked almost embarrassingly small: parse a file, copy the strings into a map, serialize that map in another format.
Then I tried it on real Flutter projects.
The converted files parsed correctly, which felt like success, but some of them had quietly lost translator context. Others kept the text and damaged a placeholder. ICU plurals were the most misleading case: a message could be perfectly valid and still be wrong for the target language.
These are the five fixtures I now reach for before I trust a converter.
1. @key is not another string
