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1 files changed, 39 insertions, 0 deletions

diff --git a/src/python/stdlib/test/test_wait3.py b/src/python/stdlib/test/test_wait3.py
new file mode 100644
index 0000000..150783b
--- /dev/null
+++ b/src/python/stdlib/test/test_wait3.py
@@ -0,0 +1,39 @@
+"""This test checks for correct wait3() behavior.
+"""
+
+import os
+import time
+import unittest
+from test.fork_wait import ForkWait
+from test.test_support import run_unittest, reap_children
+
+try:
+    os.fork
+except AttributeError:
+    raise unittest.SkipTest, "os.fork not defined -- skipping test_wait3"
+
+try:
+    os.wait3
+except AttributeError:
+    raise unittest.SkipTest, "os.wait3 not defined -- skipping test_wait3"
+
+class Wait3Test(ForkWait):
+    def wait_impl(self, cpid):
+        for i in range(10):
+            # wait3() shouldn't hang, but some of the buildbots seem to hang
+            # in the forking tests.  This is an attempt to fix the problem.
+            spid, status, rusage = os.wait3(os.WNOHANG)
+            if spid == cpid:
+                break
+            time.sleep(1.0)
+
+        self.assertEqual(spid, cpid)
+        self.assertEqual(status, 0, "cause = %d, exit = %d" % (status&0xff, status>>8))
+        self.assertTrue(rusage)
+
+def test_main():
+    run_unittest(Wait3Test)
+    reap_children()
+
+if __name__ == "__main__":
+    test_main()