* bootstraptest/runner.rb (assert_finish): new method.

* bootstraptest/test_knownbug.rb: add test for [ruby-dev:31866] using
  assert_finish.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13531 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 54 insertions, 5 deletions

diff --git a/bootstraptest/runner.rb b/bootstraptest/runner.rb
index 502eb64857..12acf290d1 100644
--- a/bootstraptest/runner.rb
+++ b/bootstraptest/runner.rb
@@ -166,6 +166,39 @@ def assert_match(expected_pattern, testsrc, message = '')
   }
 end
 
+def assert_finish(timeout_seconds, testsrc, message = '')
+  newtest
+  $stderr.puts "\##{@count} #{@location}" if @verbose
+  faildesc = nil
+  filename = make_srcfile(testsrc)
+  io = IO.popen("#{@ruby} -W0 #{filename}")
+  pid = io.pid
+  waited = false
+  tlimit = Time.now + timeout_seconds
+  while Time.now < tlimit
+    if Process.waitpid pid, Process::WNOHANG
+      waited = true
+      break
+    end
+    sleep 0.1
+  end
+  if !waited
+    Process.kill(:KILL, pid)
+    Process.waitpid pid
+    faildesc = pretty(testsrc, "not finished in #{timeout_seconds} seconds", nil)
+  end
+  io.close
+  if !faildesc
+    $stderr.print '.'
+  else
+    $stderr.print 'F'
+    error faildesc, message
+  end
+rescue Exception => err
+  $stderr.print 'E'
+  error err.message, message
+end
+
 def pretty(src, desc, result)
   (/\n/ =~ src ? "\n#{adjust_indent(src)}" : src) + "  #=> #{desc}"
 end
@@ -180,14 +213,20 @@ def untabify(str)
   str.gsub(/^\t+/) {|tabs| ' ' * (8 * tabs.size) }
 end
 
+def make_srcfile(src)
+  filename = 'bootstraptest.tmp.rb'
+  File.open(filename, 'w') {|f|
+    f.puts "GC.stress = true" if $stress
+    f.puts "print(begin; #{src}; end)"
+  }
+  filename
+end
+
 def get_result_string(src)
   if @ruby
-    File.open('bootstraptest.tmp.rb', 'w') {|f|
-      f.puts "GC.stress = true" if $stress
-      f.puts "print(begin; #{src}; end)"
-    }
+    filename = make_srcfile(src)
     begin
-      `#{@ruby} -W0 bootstraptest.tmp.rb`
+      `#{@ruby} -W0 #{filename}`
     ensure
       raise CoreDumpError, "core dumped" if $? and $?.coredump?
     end
diff --git a/bootstraptest/test_knownbug.rb b/bootstraptest/test_knownbug.rb
index 39dc6a9b8b..a5088ac234 100644
--- a/bootstraptest/test_knownbug.rb
+++ b/bootstraptest/test_knownbug.rb
@@ -2,3 +2,13 @@
 # This test file concludes tests which point out known bugs.
 # So all tests will cause failure.
 #
+
+assert_finish 1, %q{
+  r, w = IO.pipe
+  t1 = Thread.new { r.sysread(10) }
+  t2 = Thread.new { r.sysread(10) }
+  sleep 0.1
+  w.write "a"
+  sleep 0.1
+  w.write "a"
+}, '[ruby-dev:31866]'