LoadError: cannot load such file -- test_helper

Question

LoadError: cannot load such file -- test_helperを解決したい

Railsチュートリアルの１１章にてLoadError: cannot load such file -- test_helperと表示される

発生している問題・エラーメッセージ

LoadError: cannot load such file -- test_helper

該当のソースコード

Running via Spring preloader in process 15850
Traceback (most recent call last):
        31: from -e:1:in `<main>'
        30: from /home/ec2-user/.rvm/rubies/ruby-2.6.0/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
        29: from /home/ec2-user/.rvm/rubies/ruby-2.6.0/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
        28: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:286:in `load'
        27: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:258:in `load_dependency'
        26: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:286:in `block in load'
        25: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:286:in `load'
        24: from /home/ec2-user/environment/sample_app/bin/rails:9:in `<top (required)>'
        23: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `require'
        22: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:258:in `load_dependency'
        21: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `block in require'
        20: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `require'
        19: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/railties-5.1.6/lib/rails/commands.rb:16:in `<top (required)>'
        18: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/railties-5.1.6/lib/rails/command.rb:44:in `invoke'
        17: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/railties-5.1.6/lib/rails/command/base.rb:63:in `perform'
        16: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/thor-0.20.3/lib/thor.rb:387:in `dispatch'
        15: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/thor-0.20.3/lib/thor/invocation.rb:126:in `invoke_command'
        14: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/thor-0.20.3/lib/thor/command.rb:27:in `run'
        13: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/railties-5.1.6/lib/rails/commands/test/test_command.rb:38:in `perform'
        12: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/railties-5.1.6/lib/rails/test_unit/runner.rb:39:in `run'
        11: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/railties-5.1.6/lib/rails/test_unit/runner.rb:50:in `load_tests'
        10: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/railties-5.1.6/lib/rails/test_unit/runner.rb:50:in `each'
         9: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/railties-5.1.6/lib/rails/test_unit/runner.rb:50:in `block in load_tests'
         8: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `require'
         7: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:258:in `load_dependency'
         6: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `block in require'
         5: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `require'
         4: from /home/ec2-user/environment/sample_app/test/controllers/account_activations_controller_test.rb:1:in `<top (required)>'
         3: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `require'
         2: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:258:in `load_dependency'
         1: from /home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `block in require'
/home/ec2-user/.rvm/gems/ruby-2.6.0/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `require': cannot load such file -- test_helper (LoadError)

試したこと

一度test/helpers/test_helper.rbを削除し、再作成しましたがうまく行きません。

補足情報（FW/ツールのバージョンなど）

ここにより詳細な情報を記載してください。

Answer 1

解決しましので備忘録として残しておきます。

なぜかtest/helpers/test_helper.rb ディレクトリに移動していました。
正しいディレクトリはtest/test_helper.rbだと思います。
前者のファイルをを削除し、後者のファイルを再作成するとテストが駆動しました。