1 files changed, 48 insertions, 0 deletions
diff --git a/spec/ruby/core/process/waitall_spec.rb b/spec/ruby/core/process/waitall_spec.rb
new file mode 100644
index 0000000000..e1fc38d2bc
--- /dev/null
+++ b/spec/ruby/core/process/waitall_spec.rb
@@ -0,0 +1,48 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "Process.waitall" do
+  before :all do
+    begin
+      Process.waitall
+    rescue NotImplementedError
+    end
+  end
+
+  it "returns an empty array when there are no children" do
+    Process.waitall.should == []
+  end
+
+  it "takes no arguments" do
+    lambda { Process.waitall(0) }.should raise_error(ArgumentError)
+  end
+
+  platform_is_not :windows do
+    it "waits for all children" do
+      pids = []
+      pids << Process.fork { Process.exit! 2 }
+      pids << Process.fork { Process.exit! 1 }
+      pids << Process.fork { Process.exit! 0 }
+      Process.waitall
+      pids.each { |pid|
+        lambda { Process.kill(0, pid) }.should raise_error(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.size.should == 3
+      pids.each { |pid|
+        pid_status = a.assoc(pid)
+        pid_status.should be_kind_of(Array)
+        pid_status.size.should == 2
+        pid_status.first.should == pid
+        pid_status.last.should be_kind_of(Process::Status)
+      }
+    end
+  end
+end