1 files changed, 13 insertions, 17 deletions
diff --git a/spec/ruby/core/process/waitall_spec.rb b/spec/ruby/core/process/waitall_spec.rb
index bdc1ea7490..f5fbce71c1 100644
--- a/spec/ruby/core/process/waitall_spec.rb
+++ b/spec/ruby/core/process/waitall_spec.rb
@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
+require_relative 'fixtures/common'
 
 describe "Process.waitall" do
+  ProcessSpecs.use_system_ruby(self)
+
   before :all do
     begin
       Process.waitall
@@ -13,35 +16,28 @@ describe "Process.waitall" do
   end
 
   it "takes no arguments" do
-    lambda { Process.waitall(0) }.should raise_error(ArgumentError)
+    -> { Process.waitall(0) }.should.raise(ArgumentError)
   end
 
   platform_is_not :windows do
-    it "waits for all children" do
+    it "waits for all children and returns an array of pid/status pairs" do
       pids = []
-      pids << Process.fork { Process.exit! 2 }
-      pids << Process.fork { Process.exit! 1 }
-      pids << Process.fork { Process.exit! 0 }
-      Process.waitall
+      pids << Process.spawn(ruby_cmd('exit 2'))
+      pids << Process.spawn(ruby_cmd('exit 1'))
+      pids << Process.spawn(ruby_cmd('exit 0'))
+      a = Process.waitall
       pids.each { |pid|
-        lambda { Process.kill(0, pid) }.should raise_error(Errno::ESRCH)
+        -> { Process.kill(0, pid) }.should.raise(Errno::ESRCH)
       }
-    end
 
-    it "returns an array of pid/status pairs" do
-      pids = []
-      pids << Process.fork { Process.exit! 2 }
-      pids << Process.fork { Process.exit! 1 }
-      pids << Process.fork { Process.exit! 0 }
-      a = Process.waitall
-      a.should be_kind_of(Array)
+      a.should.is_a?(Array)
       a.size.should == 3
       pids.each { |pid|
         pid_status = a.assoc(pid)
-        pid_status.should be_kind_of(Array)
+        pid_status.should.is_a?(Array)
         pid_status.size.should == 2
         pid_status.first.should == pid
-        pid_status.last.should be_kind_of(Process::Status)
+        pid_status.last.should.is_a?(Process::Status)
       }
     end
   end