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path: root/railties/test/application/credentials_test.rb
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# frozen_string_literal: true

require "isolation/abstract_unit"
require "env_helpers"

class Rails::CredentialsTest < ActiveSupport::TestCase
  include ActiveSupport::Testing::Isolation, EnvHelpers

  setup :build_app
  teardown :teardown_app

  test "reads credentials from environment specific path" do
    write_credentials_override(:production)

    app("production")

    assert_equal "revealed", Rails.application.credentials.mystery
  end

  test "reads credentials from customized path and key" do
    write_credentials_override(:staging)
    add_to_env_config("production", "config.credentials.content_path = config.root.join('config/credentials/staging.yml.enc')")
    add_to_env_config("production", "config.credentials.key_path = config.root.join('config/credentials/staging.key')")

    app("production")

    assert_equal "revealed", Rails.application.credentials.mystery
  end

  test "reads credentials using environment variable key" do
    write_credentials_override(:production, with_key: false)

    switch_env("RAILS_MASTER_KEY", credentials_key) do
      app("production")

      assert_equal "revealed", Rails.application.credentials.mystery
    end
  end

  private
    def write_credentials_override(name, with_key: true)
      Dir.chdir(app_path) do
        Dir.mkdir  "config/credentials"
        File.write "config/credentials/#{name}.key", credentials_key if with_key

        # secret_key_base: secret
        # mystery: revealed
        File.write "config/credentials/#{name}.yml.enc",
          "vgvKu4MBepIgZ5VHQMMPwnQNsLlWD9LKmJHu3UA/8yj6x+3fNhz3DwL9brX7UA==--qLdxHP6e34xeTAiI--nrcAsleXuo9NqiEuhntAhw=="
      end
    end

    def credentials_key
      "2117e775dc2024d4f49ddf3aeb585919"
    end
end