rescue.rb

require 'minitest'
require "minitest/autorun"
require "minitest/focus"
require 'rake'
require 'mocha/mini_test'


class Test
  def up
    version = ENV["MIGRATION_VERSION"]
    if version.nil? && ENV["VERSION"]
      deprecated = true
      warn "Environment variable VERSION is deprecated, use MIGRATION_VERSION"
      version = ENV["VERSION"]
    end
    version ? Integer(version) : nil
  rescue ArgumentError
    warn "Environment variable #{deprecated ? '' : 'MIGRATION_'}VERSION=#{version} should be non-existant or Integer"
    puts "hillo"
    nil
  end
end

describe Test do
  it "has no MIGRATIN_VERSION and only VERSION in the ENV" do
    ENV["MIGRATION_VERSION"] = nil
    ENV["VERSION"] = '1'

    assert_equal 1, Test.new.up
  end

  it "has no MIGRATION_VERSION and only VERSION in the ENV" do
    ENV["MIGRATION_VERSION"] = 'a'

    assert_output(nil, /Environment variable MIGRATION_VERSION=a should be non-existant or Integer/) { Test.new.up }
  end
end