test_tcsendbreak fails on DragonFly BSD

[serhiy-storchaka]

Bug report

test_termios.test_tcsendbreak fails on DragonFly BSD, like on OpenBSD in gh-154394:

ERROR: test_tcsendbreak (test.test_termios.TestFunctions.test_tcsendbreak)
  File "Lib/test/test_termios.py", line 121, in test_tcsendbreak
    termios.tcsendbreak(self.fd, 1)
termios.error: (25, 'Inappropriate ioctl for device')

tcsendbreak() is not supported for pseudo-terminals there either, so DragonFly BSD should be added to the same skip:

        with skip_enotty_error(self, 'tcsendbreak',
                               ('freebsd', 'netbsd', 'openbsd', 'cygwin')):

It was not noticed in gh-154394 because test_termios hung earlier on DragonFly BSD, before reaching this test.

Linked PRs

• gh-154414: Skip test_tcsendbreak on DragonFly BSD #154415
• [3.13] gh-154414: Skip test_tcsendbreak on DragonFly BSD (GH-154415) #154424
• [3.14] gh-154414: Skip test_tcsendbreak on DragonFly BSD (GH-154415) #154425
• [3.15] gh-154414: Skip test_tcsendbreak on DragonFly BSD (GH-154415) #154426