How can I ensure that appsettings.dev.json gets copied to the output folder?

Question

I have three configuration files, one for each environment:

1. appsettings.json -> production
2. appsettings.dev.json -> development
3. appsettings.s

Answer 1

In my case, appsettings.json is not being copied for unit tests.

If you right click the file and choose Properties, this dialog will come up. Change Build Action to Embedded resource and the file will be copied to the bin folder for the unit test to pick up.