gh-89083: Add CLI tests for UUIDv{6,7,8}

Lib/test/test_uuid.py

@@ -1140,6 +1140,23 @@
         weak = weakref.ref(strong)
         self.assertIs(strong, weak())
 
+
+class TestUUIDCli(BaseTestUUID, unittest.TestCase):
+    uuid = py_uuid
+
+    def do_test_standalone_uuid(self, version):
+        stdout = io.StringIO()
+        with contextlib.redirect_stdout(stdout):
+            self.uuid.main()
+        output = stdout.getvalue().strip()
+        u = self.uuid.UUID(output)
+        self.assertEqual(output, str(u))
+        self.assertEqual(u.version, version)
+
+    @mock.patch.object(sys, "argv", ["", "-u", "uuid1"])
+    def test_uuid1(self):
+        self.do_test_standalone_uuid(1)
+
     @mock.patch.object(sys, "argv", ["", "-u", "uuid3", "-n", "@dns"])
     @mock.patch('sys.stderr', new_callable=io.StringIO)
     def test_cli_namespace_required_for_uuid3(self, mock_err):
@@ -1214,6 +1231,18 @@
         self.assertEqual(output, str(uuid_output))
         self.assertEqual(uuid_output.version, 5)
 
+    @mock.patch.object(sys, "argv", ["", "-u", "uuid6"])
+    def test_uuid1(self):
+        self.do_test_standalone_uuid(6)
+
+    @mock.patch.object(sys, "argv", ["", "-u", "uuid7"])
+    def test_uuid1(self):
+        self.do_test_standalone_uuid(7)
+
+    @mock.patch.object(sys, "argv", ["", "-u", "uuid8"])
+    def test_uuid1(self):
+        self.do_test_standalone_uuid(8)
+
 
 class TestUUIDWithoutExtModule(BaseTestUUID, unittest.TestCase):
     uuid = py_uuid