Show thread and fiber limits as part of bootstrap tests.

bootstraptest/runner.rb

@@ -208,6 +208,9 @@ def exec_test(pathes)
     $stderr.puts unless @quiet and @tty and @error == error
   end
   $stderr.print(erase) if @quiet
+  @errbuf.each do |msg|
+    $stderr.puts msg
+  end
   if @error == 0
     if @count == 0
       $stderr.puts "No tests, no problem"
@@ -216,9 +219,6 @@ def exec_test(pathes)
     end
     exit true
   else
-    @errbuf.each do |msg|
-      $stderr.puts msg
-    end
     $stderr.puts "#{@failed}FAIL#{@reset} #{@error}/#{@count} tests failed"
     exit false
   end
@@ -244,7 +244,7 @@ def show_progress(message = '')
   else
     $stderr.print "#{@failed}F"
     $stderr.printf(" %.3f", t) if @verbose
-    $stderr.print "#{@reset}"
+    $stderr.print @reset
     $stderr.puts if @verbose
     error faildesc, message
     unless errout.empty?
@@ -263,6 +263,19 @@ rescue Exception => err
   error err.message, message
 end
 
+def show_limit(testsrc, opt = '', **argh)
+  result = get_result_string(testsrc, opt, **argh)
+  $stderr.print '.'
+  $stderr.print @reset
+  $stderr.puts if @verbose
+  
+  if @tty
+    $stderr.puts "#{erase}#{result}"
+  else
+    @errbuf.push result
+  end
+end
+
 def assert_check(testsrc, message = '', opt = '', **argh)
   show_progress(message) {
     result = get_result_string(testsrc, opt, **argh)

bootstraptest/test_thread.rb

@@ -1,5 +1,27 @@
-# Thread and Fiber
-
+show_limit %q{
+  threads = []
+  begin
+    threads << Thread.new{sleep}
+    
+    raise Exception, "skipping" if threads.count >= 10_000
+  rescue Exception => error
+    puts "Thread count: #{threads.count} (#{error})"
+    break
+  end while true
+}
+show_limit %q{
+  fibers = []
+  begin
+    fiber = Fiber.new{Fiber.yield}
+    fiber.resume
+    fibers << fiber
+    
+    raise Exception, "skipping" if fibers.count >= 10_000
+  rescue Exception => error
+    puts "Fiber count: #{fibers.count} (#{error})"
+    break
+  end while true
+}
 assert_equal %q{ok}, %q{
   Thread.new{
   }.join