railties/test/env_helpers.rb


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

require "rails"

module EnvHelpers
  private

  def with_rails_env(env)
    Rails.instance_variable_set :@_env, nil
    switch_env "RAILS_ENV", env do
      switch_env "RACK_ENV", nil do
        yield
      end
    end
  end

  def with_rack_env(env)
    Rails.instance_variable_set :@_env, nil
    switch_env "RACK_ENV", env do
      switch_env "RAILS_ENV", nil do
        yield
      end
    end
  end

  def switch_env(key, value)
    old, ENV[key] = ENV[key], value
    yield
  ensure
    ENV[key] = old
  end
end