tests: cleanup subprocess file handles in create_child_test

tests/create_child_test.py

@@ -101,6 +101,7 @@ class StdinSockMixin(object):
         self.assertTrue(flags & os.O_RDWR)
         self.assertTrue(info['buf'], 'TEST')
         self.assertTrue(info['flags'] & os.O_RDWR)
+        close_proc(proc)
 
 
 class StdoutSockMixin(object):
@@ -115,6 +116,7 @@ class StdoutSockMixin(object):
         self.assertTrue(flags & os.O_RDWR)
         self.assertTrue(buf, 'TEST')
         self.assertTrue(info['flags'] & os.O_RDWR)
+        close_proc(proc)
 
 
 class CreateChildTest(StdinSockMixin, StdoutSockMixin, testlib.TestCase):
@@ -126,6 +128,7 @@ class CreateChildTest(StdinSockMixin, StdoutSockMixin, testlib.TestCase):
         self.assertEqual(st.st_dev, info['st_dev'])
         self.assertEqual(st.st_mode, info['st_mode'])
         self.assertEqual(st.st_ino, info['st_ino'])
+        close_proc(proc)
 
 
 class CreateChildMergedTest(StdinSockMixin, StdoutSockMixin,
@@ -144,6 +147,7 @@ class CreateChildMergedTest(StdinSockMixin, StdoutSockMixin,
         self.assertTrue(flags & os.O_RDWR)
         self.assertTrue(buf, 'TEST')
         self.assertTrue(info['flags'] & os.O_RDWR)
+        close_proc(proc)
 
 
 class CreateChildStderrPipeTest(StdinSockMixin, StdoutSockMixin,
@@ -164,6 +168,7 @@ class CreateChildStderrPipeTest(StdinSockMixin, StdoutSockMixin,
         self.assertFalse(flags & os.O_RDWR)
         self.assertTrue(buf, 'TEST')
         self.assertTrue(info['flags'] & os.O_WRONLY)
+        close_proc(proc)
 
 
 class TtyCreateChildTest(testlib.TestCase):
@@ -191,9 +196,9 @@ class TtyCreateChildTest(testlib.TestCase):
             self.assertEqual(proc.pid, waited_pid)
             self.assertEqual(0, status)
             self.assertEqual(mitogen.core.b(''), tf.read())
-            proc.stdout.close()
         finally:
             tf.close()
+            close_proc(proc)
 
     def test_stdin(self):
         proc, info, _ = run_fd_check(self.func, 0, 'read',
@@ -210,6 +215,7 @@ class TtyCreateChildTest(testlib.TestCase):
         self.assertTrue(flags & os.O_RDWR)
         self.assertTrue(info['flags'] & os.O_RDWR)
         self.assertTrue(info['buf'], 'TEST')
+        close_proc(proc)
 
     def test_stdout(self):
         proc, info, buf = run_fd_check(self.func, 1, 'write',
@@ -229,6 +235,7 @@ class TtyCreateChildTest(testlib.TestCase):
 
         self.assertTrue(flags & os.O_RDWR)
         self.assertTrue(buf, 'TEST')
+        close_proc(proc)
 
     def test_stderr(self):
         # proc.stderr is None in the parent since there is no separate stderr
@@ -250,6 +257,7 @@ class TtyCreateChildTest(testlib.TestCase):
 
         self.assertTrue(flags & os.O_RDWR)
         self.assertTrue(buf, 'TEST')
+        close_proc(proc)
 
     def test_dev_tty_open_succeeds(self):
         # In the early days of UNIX, a process that lacked a controlling TTY
@@ -274,6 +282,7 @@ class TtyCreateChildTest(testlib.TestCase):
             proc.stdout.close()
         finally:
             tf.close()
+            close_proc(proc)
 
 
 class StderrDiagTtyMixin(object):
@@ -296,6 +305,7 @@ class StderrDiagTtyMixin(object):
 
         self.assertTrue(flags & os.O_RDWR)
         self.assertTrue(buf, 'TEST')
+        close_proc(proc)
 
 
 class HybridTtyCreateChildTest(StdinSockMixin, StdoutSockMixin,
@@ -321,6 +331,7 @@ if 0:
             self.assertTrue(buf, 'TEST')
             self.assertFalse(info['flags'] & os.O_WRONLY)
             self.assertFalse(info['flags'] & os.O_RDWR)
+            close_proc(proc)
 
         def test_stdout(self):
             proc, info, buf = run_fd_check(self.func, 1, 'write',
@@ -334,3 +345,4 @@ if 0:
             self.assertFalse(flags & os.O_RDWR)
             self.assertTrue(info['flags'] & os.O_WRONLY)
             self.assertTrue(buf, 'TEST')
+            close_proc(proc)