Examples for Interactive Aruba Steps

advanced.feature

Feature: Advanced scripting

As a My script writer
I want to nest tasks inside of questions
So I can respond dynamically to the user's needs

@aruba_interactive
Scenario: Nesting questions
Given a file named "yes.template" with:
  """
  The user picked yes
  """
And a file named "script.rb" with:
  """
  ask "Are you sure you would like to apply this script?"
  yes do
    folder "foo"
    file "foo.txt" => "yes.template"
    ask "Would you like to create bar.txt?"
    yes do
      file "bar.txt" => "yes.template"
    end
  end
  """
When I run "../../bin/my script.rb" interactively
And I type "y"
And I type "y"
Then the file "foo.txt" should contain "The user picked yes"
Then the file "bar.txt" should contain "The user picked yes"

aruba_example.feature

Scenario: Creating a file
  Given a directory named "foo"
  When I run "echo 'hello, world' > foo/bar.txt"
  Then the file "foo/bar.txt" should contain "hello, world"

aruba_interactive.rb

require 'open3'

Before '@aruba_interactive' do
  @stdout_stream        = nil
  @stderr_stream        = nil
  @stdout               = ""
  @stdin                = ""

  @stdout_listener = Thread.new do
    Thread.stop
    loop do
      @stdout << @stdout_stream.readpartial(1)
    end
  end

  @stderr_listener = Thread.new do
    Thread.stop
    loop do
      @stderr << @stderr_stream.readpartial(1)
    end
  end
end

When /^I run "([^\"]*)" interactively$/ do |arg1|
  old_dir = Dir.pwd
  Dir.chdir("tmp/aruba") unless Dir.pwd.split('/')[-1] == "aruba"
  @stdin_stream, @stdout_stream, @stderr_stream = Open3.popen3(arg1)
  Dir.chdir(old_dir)
  sleep 1
  @stdout_listener.run
  @stderr_listener.run
end

When /^I type "([^\"]*)"$/ do |arg1|
  @stdin_stream.puts arg1
  sleep 0.5
end

Then /^the program should prompt "([^\"]*)"$/ do |arg1|
  sleep 0.5
  @stdout.should include(arg1)
end

interact_pt_1.rb

Before '@aruba_interactive' do
  @stdout_stream        = nil
  @stderr_stream        = nil
  @stdout               = ""
  @sterr                = ""

  @stdout_listener = Thread.new do
    Thread.stop
    loop do
      @stdout << @stdout_stream.readpartial(1)
    end
  end

  @stderr_listener = Thread.new do
    Thread.stop
    loop do
      @stderr << @stderr_stream.readpartial(1)
    end
  end
end

interact_pt_2.rb

When /^I run "([^\"]*)" interactively$/ do |arg1|
  old_dir = Dir.pwd
  Dir.chdir("tmp/aruba") unless Dir.pwd.split('/')[-1] == "aruba"
  @stdin_stream, @stdout_stream, @stderr_stream = Open3.popen3(arg1)
  Dir.chdir(old_dir)
  sleep 1
  @stdout_listener.run
  @stderr_listener.run
end

interact_pt_3.rb

When /^I type "([^\"]*)"$/ do |arg1|
  @stdin_stream.puts arg1
  sleep 0.5
end

Then /^the program should prompt "([^\"]*)"$/ do |arg1|
  sleep 0.5
  @stdout.should include(arg1)
end

open3_example.rb

require 'open3'

stdin, stdout, stderr = Open3.popen3('dc') 
stdin.puts(5)
stdin.puts(10)
stdin.puts("+")
stdin.puts("p")
stdout.gets
  #=> "15\n" 

system_call.rb

puts `ls`
  #=> "app.rb  config.ru  views  tmp  ..."