diff --git a/tests/create_child_test.py b/tests/create_child_test.py
index e7357059..1c2f526a 100644
--- a/tests/create_child_test.py
+++ b/tests/create_child_test.py
@@ -173,6 +173,33 @@ class CreateChildStderrPipeTest(StdinSockMixin, StdoutSockMixin,
 class TtyCreateChildTest(testlib.TestCase):
     func = staticmethod(mitogen.parent.tty_create_child)
 
+    def test_dev_tty_open_succeeds(self):
+        # In the early days of UNIX, a process that lacked a controlling TTY
+        # would acquire one simply by opening an existing TTY. Linux and OS X
+        # continue to follow this behaviour, however at least FreeBSD moved to
+        # requiring an explicit ioctl(). Linux supports it, but we don't yet
+        # use it there and anyway the behaviour will never change, so no point
+        # in fixing things that aren't broken. Below we test that
+        # getpass-loving apps like sudo and ssh get our slave PTY when they
+        # attempt to open /dev/tty, which is what they both do on attempting to
+        # read a password.
+        tf = tempfile.NamedTemporaryFile()
+        try:
+            proc = self.func([
+                'bash', '-c', 'exec 2>%s; echo hi > /dev/tty' % (tf.name,)
+            ])
+            deadline = time.time() + 5.0
+            mitogen.core.set_block(proc.stdin.fileno())
+            # read(3) below due to https://bugs.python.org/issue37696
+            self.assertEquals(mitogen.core.b('hi\n'), proc.stdin.read(3))
+            waited_pid, status = os.waitpid(proc.pid, 0)
+            self.assertEquals(proc.pid, waited_pid)
+            self.assertEquals(0, status)
+            self.assertEquals(mitogen.core.b(''), tf.read())
+            proc.stdout.close()
+        finally:
+            tf.close()
+
     def test_stdin(self):
         proc, info, _ = run_fd_check(self.func, 0, 'read',
             lambda proc: proc.stdin.write(b('TEST')))
diff --git a/tests/parent_test.py b/tests/parent_test.py
index 7ac482c5..b314d472 100644
--- a/tests/parent_test.py
+++ b/tests/parent_test.py
@@ -211,37 +211,6 @@ class OpenPtyTest(testlib.TestCase):
             slave_fp.close()
 
 
-class TtyCreateChildTest(testlib.TestCase):
-    func = staticmethod(mitogen.parent.tty_create_child)
-
-    def test_dev_tty_open_succeeds(self):
-        # In the early days of UNIX, a process that lacked a controlling TTY
-        # would acquire one simply by opening an existing TTY. Linux and OS X
-        # continue to follow this behaviour, however at least FreeBSD moved to
-        # requiring an explicit ioctl(). Linux supports it, but we don't yet
-        # use it there and anyway the behaviour will never change, so no point
-        # in fixing things that aren't broken. Below we test that
-        # getpass-loving apps like sudo and ssh get our slave PTY when they
-        # attempt to open /dev/tty, which is what they both do on attempting to
-        # read a password.
-        tf = tempfile.NamedTemporaryFile()
-        try:
-            proc = self.func([
-                'bash', '-c', 'exec 2>%s; echo hi > /dev/tty' % (tf.name,)
-            ])
-            deadline = time.time() + 5.0
-            mitogen.core.set_block(proc.stdin.fileno())
-            # read(3) below due to https://bugs.python.org/issue37696
-            self.assertEquals(mitogen.core.b('hi\n'), proc.stdin.read(3))
-            waited_pid, status = os.waitpid(proc.pid, 0)
-            self.assertEquals(proc.pid, waited_pid)
-            self.assertEquals(0, status)
-            self.assertEquals(mitogen.core.b(''), tf.read())
-            proc.stdout.close()
-        finally:
-            tf.close()
-
-
 class DisconnectTest(testlib.RouterMixin, testlib.TestCase):
     def test_child_disconnected(self):
         # Easy mode: process notices its own directly connected child is