# MoxEnv [](https://hex.pm/packages/mox_env)
---
It's your application config but simply mocked with Mox.
---
## Usage
```elixir
# myapp/lib/myapp/config.ex
defmodule MyApp.Config do
def get(key, default \\ nil) do
Application.get_env(:my_app, key, default)
end
end
# myapp/test/support/config_mock.ex
defmodule MyApp.ConfigMock do
use MoxEnv, config: MyApp.Config
end
# myapp/lib/myapp.ex
defmodule MyApp do
@config Application.get_env(:my_app, :config_module, MyApp.Config)
def test_key do
@config.get(:test_key)
end
def test_key_default do
@config.get(:test_key_default, :default_value)
end
end
# config/test.exs
config :my_app, config_module: MyApp.ConfigMock
```
With that configuration you can simply mock your config in tests, like Mox:
```elixir
iex> MyApp.test_key
:test_value
iex> MyApp.ConfigMock.put_env(:test_key, :new_value)
:new_value
```
And import some handy helpers into your test cases:
```elixir
defmodule MyApp.ConnCase do
use ExUnit.CaseTemplate
# ...
using do
import Mox
import MyApp.ConfigMock, only: [put_env: 2, put_env: 3, allow_env: 1, allow_env: 2]
setup [:set_mox_from_context, :verify_on_exit!]
end
# ...
end
```
---
### Contributing
1. Fork it
2. Create your feature branch (`git checkout -b my-new-feature`)
3. Commit your changes (`git commit -am 'add some feature'`)
4. Push to the branch (`git push origin my-new-feature`)
5. Create new Pull Request