bundle --no-deployment not installing development and test groups

Question

Even running bundle with the following line:

bundle --no-deployment

It still not installs the development and test gems. I don't have any .gem file under my vendor directory.

Answer 1

The problem was the file .bundle/config, which by whatever reason was setting the frozen option and removing the deployment/test groups from inside. I simply deleted the folder:

rm -rf .bundle

And everything got back to normal.