```ruby
require 'helper'

describe "Pry.run_command" do
  before do
    o = Object.new
    def o.drum
      "roken is dodelijk"
    end
    @context = Pry.binding_for(o)
  end

  it 'performs a simple ls' do
    @context.eval("hokey_pokey = 10")
    Pry.run_command "ls", :context => @context, :output => out = StringIO.new
    out.string.should =~ /hokey_pokey/
  end

  # This is a regression test as 0.9.11 broke this behaviour
  it 'can perform a show-source' do
    Pry.run_command "show-source drum", :context => @context, :output => out = StringIO.new
    out.string.should =~ /roken is dodelijk/
  end
end
```

Fix failing specs on ree/ruby18
user
```ruby
require 'helper'

describe "Pry.run_command" do
  before do
    o = Object.new
    def o.drum
      "roken is dodelijk"
    end
    @context = Pry.binding_for(o)
  end

  it 'performs a simple ls' do
    @context.eval("hokey_pokey = 10")
    Pry.run_command "ls", :context => @context, :output => out = StringIO.new
    out.string.should =~ /hokey_pokey/
  end

  if !PryTestHelpers.mri18_and_no_real_source_location?
    # This is a regression test as 0.9.11 broke this behaviour
    it 'can perform a show-source' do
      Pry.run_command "show-source drum", :context => @context, :output => out = StringIO.new
      out.string.should =~ /roken is dodelijk/
    end
  end
end
```
assistant