* lib/test/unit.rb: Put error message into STDERR if failed to lanch

  worker (job) process. [ruby-dev:44802] [Bug #5577]

* lib/test/unit/parallel.rb: If failed to increment_io, exit with code
  2. [ruby-dev:44802] [Bug #5577]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34968 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 27 insertions, 18 deletions

diff --git a/lib/test/unit.rb b/lib/test/unit.rb
index 89cb93a678..5b62774f44 100644
--- a/lib/test/unit.rb
+++ b/lib/test/unit.rb
@@ -429,7 +429,12 @@ module Test
 
           # Array of workers.
           launch_worker = Proc.new {
-            worker = Worker.launch(@options[:ruby],@args)
+            begin
+              worker = Worker.launch(@options[:ruby],@args)
+            rescue => e
+              warn "ERROR: Failed to launch job process - #{e.class}: #{e.message}"
+              exit 1
+            end
             worker.hook(:dead) do |w,info|
               after_worker_quit w
               after_worker_down w, *info if !info.empty? && !worker.quit_called
@@ -536,25 +541,29 @@ module Test
                 end
             end
           end
-          @workers.each do |worker|
+
+          if @workers
+            @workers.each do |worker|
+              begin
+                timeout(1) do
+                  worker.quit
+                end
+              rescue Errno::EPIPE
+              rescue Timeout::Error
+              end
+              worker.close
+            end
+
             begin
-              timeout(1) do
-                worker.quit
+              timeout(0.2*@workers.size) do
+                Process.waitall
               end
-            rescue Errno::EPIPE
             rescue Timeout::Error
-            end
-            worker.close
-          end
-          begin
-            timeout(0.2*@workers.size) do
-              Process.waitall
-            end
-          rescue Timeout::Error
-            @workers.each do |worker|
-              begin
-                Process.kill(:KILL,worker.pid)
-              rescue Errno::ESRCH; end
+              @workers.each do |worker|
+                begin
+                  Process.kill(:KILL,worker.pid)
+                rescue Errno::ESRCH; end
+              end
             end
           end
 
@@ -565,7 +574,7 @@ module Test
             @errors   += rep.map{|x| x[:result][0] }.inject(:+)
             @failures += rep.map{|x| x[:result][1] }.inject(:+)
             @skips    += rep.map{|x| x[:result][2] }.inject(:+)
-          else
+          elsif @workers
             puts ""
             puts "Retrying..."
             puts ""