```ruby
require 'spec_helper'

describe Space2underscore do
  it 'should be Successful execution' do
    expect(Space2underscore.convert(['fuga hoge foo'])).to include('_') # String case
    expect(Space2underscore.convert(%w(fuga hoge foo))).to include('_') # Array case
  end

  it 'should be Successful copied' do
    expect(Space2underscore.generate_command('fuga_hoge_foo')).to eq("echo fuga_hoge_foo | ruby -pe 'chomp' | pbcopy")
  end
end
```

Remove an example, It is needless
user
```ruby
require 'spec_helper'

describe Space2underscore do
  it 'should be Successful execution' do
    expect(Space2underscore.convert(['fuga hoge foo'])).to include('_') # String case
    expect(Space2underscore.convert(%w(fuga hoge foo))).to include('_') # Array case
  end
end
```
assistant