python · vstinner · Aug 9, 2017 · Aug 9, 2017
diff --git a/Lib/test/libregrtest/runtest.py b/Lib/test/libregrtest/runtest.py
@@ -143,6 +143,10 @@ def runtest(ns, test):
 runtest.stringio = None


+def post_test_cleanup():
+    support.reap_children()
+
+
 def runtest_inner(ns, test, display_failure=True):
    support.unload(test)

@@ -170,6 +174,7 @@ def test_runner():
            if ns.huntrleaks:
                refleak = dash_R(the_module, test, test_runner, ns.huntrleaks)
            test_time = time.time() - start_time
+        post_test_cleanup()
    except support.ResourceDenied as msg:
        if not ns.quiet and not ns.pgo:
            print(test, "skipped --", msg, flush=True)

diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py
@@ -1560,6 +1560,10 @@ def run_child(self, child, terminal_input):
            self.fail("got %d lines in pipe but expected 2, child output was:\n%s"
                      % (len(lines), child_output))
        os.close(fd)
+
+        pid, status = os.waitpid(pid, 0)
+        self.assertEqual(status, 0)
+
        return lines

    def check_input_tty(self, prompt, terminal_input, stdio_encoding=None):