Missing tests checkings

[locnnil]

There are some tests that need to be done in order to increase the test coverage.

• Check env variables and env file variables that contain in its values:

  • curly brackets
  • parentheses
  • quotation marks
  • spaces
  • asterisks
  • other special characters
  • maybe Unicode/UTF-8?

• Check for invalid env files (bad formatted env files)

• Check if values set by envfiles doens't override between apps

• Check for empty env files

• Check escaped characters in env file (e.g. newline \n or backslashes \\)