Illustrating i18n issue

en.yml

en:
   hello: "Hello world"

Gemfile

source 'https://rubygems.org'

gem "pry"
gem 'i18n', github: "svenfuchs/i18n", branch: "173-reset-load-path"
gem "rspec"

Gemfile.lock

GIT
  remote: git://github.com/svenfuchs/i18n.git
  revision: e711e7921e58637ba03ebeb8990285c415c4c0b5
  branch: 173-reset-load-path
  specs:
    i18n (0.7.0)

GEM
  remote: https://rubygems.org/
  specs:
    coderay (1.1.1)
    diff-lcs (1.2.5)
    method_source (0.8.2)
    pry (0.10.4)
      coderay (~> 1.1.0)
      method_source (~> 0.8.1)
      slop (~> 3.4)
    rspec (3.5.0)
      rspec-core (~> 3.5.0)
      rspec-expectations (~> 3.5.0)
      rspec-mocks (~> 3.5.0)
    rspec-core (3.5.4)
      rspec-support (~> 3.5.0)
    rspec-expectations (3.5.0)
      diff-lcs (>= 1.2.0, < 2.0)
      rspec-support (~> 3.5.0)
    rspec-mocks (3.5.0)
      diff-lcs (>= 1.2.0, < 2.0)
      rspec-support (~> 3.5.0)
    rspec-support (3.5.0)
    slop (3.6.0)

PLATFORMS
  ruby

DEPENDENCIES
  i18n!
  pry
  rspec

BUNDLED WITH
   1.13.5

spec.rb

require 'rspec'
require 'i18n'

describe "I18n" do
  it "should translate hello to english" do
    I18n.load_path << Dir.pwd + "/en.yml"
    puts "Translate English"
    I18n.locale = :en
    expect(I18n.t("hello")).to eq "Hello world"
  end

  it "should fail if a translation is not found" do
     puts "Translation fail"
     expect(I18n.t('test')).to eq "translation missing: en.test"
  end
end

spec_failed.rb

require 'rspec'
require 'i18n'

describe "I18n" do

  it "should fail if a translation is not found" do
     puts "Translation fail"
     expect {I18n.t('test') }.to raise_error(I18n::InvalidLocale)
  end

  it "should translate hello to english" do
    I18n.load_path += [Dir.pwd + "/en.yml"]
    puts "Translate English"
    I18n.locale = :en
    expect(I18n.t("hello")).to eq "Hello world"
  end
end