add background runner step. last_stdout and last_stderr read from it'…

…s streams if not set

features/steps/sandbox_steps.rb

@@ -37,6 +37,10 @@
   run(localized_command(command, args))
 end
 
+When /^I run this in the background: (spork|spec|cucumber)(| .*)$/ do |command, args|
+  @background_script = run_in_background(localized_command(command, args))
+end
+
 When /^I fire up a spork instance with "spork(.*)"$/ do |spork_opts|
   @spork_server = run_in_background("#{SporkWorld::RUBY_BINARY} -I #{Cucumber::LIBDIR} #{SporkWorld::BINARY} #{spork_opts}")
 
@@ -56,6 +60,28 @@
   end
 end
 
+Then /^the spork window should output a line containing "(.+)"/ do |expected|
+  output = ""
+  begin
+    status = Timeout::timeout(5) do
+      # Something that should be interrupted if it takes too much time...
+      while line = @spork_server.stdout.gets
+        output << line
+        puts line
+        break if output.include?(expected)
+      end
+    end
+  rescue Timeout::Error
+    output.should include(expected)
+  end
+end
+
+When /^I type this in the spork window: "(.+)"/ do |line|
+  @spork_server.stdin.puts(line)
+  @spork_server.stdin.flush
+end
+
+
 Then /^the file "([^\"]*)" should include "([^\"]*)"$/ do |filename, content|
   in_current_dir do
     File.read(filename).should include(content)

features/support/env.rb

@@ -27,6 +27,20 @@ def initialize
 
   private
   attr_reader :last_exit_status, :last_stderr, :last_stdout, :background_jobs
+  def last_stderr
+    return @last_stderr if @last_stderr
+    if @background_job
+      @last_stderr = @background_job.stderr.read
+    end
+  end
+
+
+  def last_stdout
+    return @last_stdout if @last_stdout
+    if @background_job
+      @last_stdout = @background_job.stdout.read
+    end
+  end
 
   def create_file(file_name, file_content)
     file_content.gsub!("SPORK_LIB", "'#{spork_lib_dir}'") # Some files, such as Rakefiles need to use the lib dir
@@ -76,6 +90,8 @@ def terminate_background_jobs
         background_job.kill
       end
     end
+    @background_jobs.clear
+    @background_job = nil
   end
 
 end