tests/functional: Convert the vnc test

Nothing thrilling in here, it's just a straight forward conversion.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20241218131439.255841-2-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

1 files changed, 117 insertions, 0 deletions

diff --git a/tests/functional/test_vnc.py b/tests/functional/test_vnc.py
new file mode 100755
index 0000000000..b769d3b268
--- /dev/null
+++ b/tests/functional/test_vnc.py
@@ -0,0 +1,117 @@
+#!/usr/bin/env python3
+#
+# Simple functional tests for VNC functionality
+#
+# Copyright (c) 2018 Red Hat, Inc.
+#
+# Author:
+#  Cleber Rosa <crosa@redhat.com>
+#
+# This work is licensed under the terms of the GNU GPL, version 2 or
+# later.  See the COPYING file in the top-level directory.
+
+import socket
+from typing import List
+
+from qemu_test import QemuSystemTest
+
+
+VNC_ADDR = '127.0.0.1'
+VNC_PORT_START = 32768
+VNC_PORT_END = VNC_PORT_START + 1024
+
+
+def check_bind(port: int) -> bool:
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
+        try:
+            sock.bind((VNC_ADDR, port))
+        except OSError:
+            return False
+
+    return True
+
+
+def check_connect(port: int) -> bool:
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
+        try:
+            sock.connect((VNC_ADDR, port))
+        except ConnectionRefusedError:
+            return False
+
+    return True
+
+
+def find_free_ports(count: int) -> List[int]:
+    result = []
+    for port in range(VNC_PORT_START, VNC_PORT_END):
+        if check_bind(port):
+            result.append(port)
+            if len(result) >= count:
+                break
+    assert len(result) == count
+    return result
+
+
+class Vnc(QemuSystemTest):
+
+    def test_no_vnc(self):
+        self.vm.add_args('-nodefaults', '-S')
+        self.vm.launch()
+        self.assertFalse(self.vm.qmp('query-vnc')['return']['enabled'])
+
+    def test_no_vnc_change_password(self):
+        self.vm.add_args('-nodefaults', '-S')
+        self.vm.launch()
+        self.assertFalse(self.vm.qmp('query-vnc')['return']['enabled'])
+        set_password_response = self.vm.qmp('change-vnc-password',
+                                            password='new_password')
+        self.assertIn('error', set_password_response)
+        self.assertEqual(set_password_response['error']['class'],
+                         'GenericError')
+        self.assertEqual(set_password_response['error']['desc'],
+                         'Could not set password')
+
+    def test_change_password_requires_a_password(self):
+        self.vm.add_args('-nodefaults', '-S', '-vnc', ':0')
+        self.vm.launch()
+        self.assertTrue(self.vm.qmp('query-vnc')['return']['enabled'])
+        set_password_response = self.vm.qmp('change-vnc-password',
+                                            password='new_password')
+        self.assertIn('error', set_password_response)
+        self.assertEqual(set_password_response['error']['class'],
+                         'GenericError')
+        self.assertEqual(set_password_response['error']['desc'],
+                         'Could not set password')
+
+    def test_change_password(self):
+        self.vm.add_args('-nodefaults', '-S', '-vnc', ':0,password=on')
+        self.vm.launch()
+        self.assertTrue(self.vm.qmp('query-vnc')['return']['enabled'])
+        self.vm.cmd('change-vnc-password',
+                    password='new_password')
+
+    def test_change_listen(self):
+        a, b, c = find_free_ports(3)
+        self.assertFalse(check_connect(a))
+        self.assertFalse(check_connect(b))
+        self.assertFalse(check_connect(c))
+
+        self.vm.add_args('-nodefaults', '-S', '-vnc', f'{VNC_ADDR}:{a - 5900}')
+        self.vm.launch()
+        self.assertEqual(self.vm.qmp('query-vnc')['return']['service'], str(a))
+        self.assertTrue(check_connect(a))
+        self.assertFalse(check_connect(b))
+        self.assertFalse(check_connect(c))
+
+        self.vm.cmd('display-update', type='vnc',
+                    addresses=[{'type': 'inet', 'host': VNC_ADDR,
+                                'port': str(b)},
+                               {'type': 'inet', 'host': VNC_ADDR,
+                                'port': str(c)}])
+        self.assertEqual(self.vm.qmp('query-vnc')['return']['service'], str(b))
+        self.assertFalse(check_connect(a))
+        self.assertTrue(check_connect(b))
+        self.assertTrue(check_connect(c))
+
+if __name__ == '__main__':
+    QemuSystemTest.main()