diff options
| -rw-r--r-- | Lib/test/test_curses.py | 102 |
1 files changed, 63 insertions, 39 deletions
diff --git a/Lib/test/test_curses.py b/Lib/test/test_curses.py index 09738c8..b7349d9 100644 --- a/Lib/test/test_curses.py +++ b/Lib/test/test_curses.py @@ -47,37 +47,57 @@ class TestCurses(unittest.TestCase): @classmethod def setUpClass(cls): - if not sys.__stdout__.isatty(): - # Temporary skip tests on non-tty - raise unittest.SkipTest('sys.__stdout__ is not a tty') - cls.tmp = tempfile.TemporaryFile() - fd = cls.tmp.fileno() - else: - cls.tmp = None - fd = sys.__stdout__.fileno() # testing setupterm() inside initscr/endwin # causes terminal breakage - curses.setupterm(fd=fd) - - @classmethod - def tearDownClass(cls): - if cls.tmp: - cls.tmp.close() - del cls.tmp + stdout_fd = sys.__stdout__.fileno() + curses.setupterm(fd=stdout_fd) def setUp(self): + self.isatty = True + self.output = sys.__stdout__ + stdout_fd = sys.__stdout__.fileno() + if not sys.__stdout__.isatty(): + # initstr() unconditionally uses C stdout. + # If it is redirected to file or pipe, try to attach it + # to terminal. + # First, save a copy of the file descriptor of stdout, so it + # can be restored after finishing the test. + dup_fd = os.dup(stdout_fd) + self.addCleanup(os.close, dup_fd) + self.addCleanup(os.dup2, dup_fd, stdout_fd) + + if sys.__stderr__.isatty(): + # If stderr is connected to terminal, use it. + tmp = sys.__stderr__ + self.output = sys.__stderr__ + else: + try: + # Try to open the terminal device. + tmp = open('/dev/tty', 'wb', buffering=0) + except OSError: + # As a fallback, use regular file to write control codes. + # Some functions (like savetty) will not work, but at + # least the garbage control sequences will not be mixed + # with the testing report. + tmp = tempfile.TemporaryFile(mode='wb', buffering=0) + self.isatty = False + self.addCleanup(tmp.close) + self.output = None + os.dup2(tmp.fileno(), stdout_fd) + self.save_signals = SaveSignals() self.save_signals.save() - if verbose: + self.addCleanup(self.save_signals.restore) + if verbose and self.output is not None: # just to make the test output a little more readable - print() + sys.stderr.flush() + sys.stdout.flush() + print(file=self.output, flush=True) self.stdscr = curses.initscr() - curses.savetty() - - def tearDown(self): - curses.resetty() - curses.endwin() - self.save_signals.restore() + if self.isatty: + curses.savetty() + self.addCleanup(curses.endwin) + self.addCleanup(curses.resetty) def test_window_funcs(self): "Test the methods of windows" @@ -95,7 +115,7 @@ class TestCurses(unittest.TestCase): for meth in [stdscr.clear, stdscr.clrtobot, stdscr.clrtoeol, stdscr.cursyncup, stdscr.delch, stdscr.deleteln, stdscr.erase, stdscr.getbegyx, - stdscr.getbkgd, stdscr.getkey, stdscr.getmaxyx, + stdscr.getbkgd, stdscr.getmaxyx, stdscr.getparyx, stdscr.getyx, stdscr.inch, stdscr.insertln, stdscr.instr, stdscr.is_wintouched, win.noutrefresh, stdscr.redrawwin, stdscr.refresh, @@ -206,6 +226,11 @@ class TestCurses(unittest.TestCase): if hasattr(stdscr, 'enclose'): stdscr.enclose(10, 10) + with tempfile.TemporaryFile() as f: + self.stdscr.putwin(f) + f.seek(0) + curses.getwin(f) + self.assertRaises(ValueError, stdscr.getstr, -400) self.assertRaises(ValueError, stdscr.getstr, 2, 3, -400) self.assertRaises(ValueError, stdscr.instr, -2) @@ -224,16 +249,19 @@ class TestCurses(unittest.TestCase): def test_module_funcs(self): "Test module-level functions" for func in [curses.baudrate, curses.beep, curses.can_change_color, - curses.cbreak, curses.def_prog_mode, curses.doupdate, - curses.flash, curses.flushinp, + curses.doupdate, curses.flash, curses.flushinp, curses.has_colors, curses.has_ic, curses.has_il, curses.isendwin, curses.killchar, curses.longname, - curses.nocbreak, curses.noecho, curses.nonl, - curses.noqiflush, curses.noraw, - curses.reset_prog_mode, curses.termattrs, - curses.termname, curses.erasechar]: + curses.noecho, curses.nonl, curses.noqiflush, + curses.termattrs, curses.termname, curses.erasechar]: with self.subTest(func=func.__qualname__): func() + if self.isatty: + for func in [curses.cbreak, curses.def_prog_mode, + curses.nocbreak, curses.noraw, + curses.reset_prog_mode]: + with self.subTest(func=func.__qualname__): + func() if hasattr(curses, 'filter'): curses.filter() if hasattr(curses, 'getsyx'): @@ -245,13 +273,9 @@ class TestCurses(unittest.TestCase): curses.delay_output(1) curses.echo() ; curses.echo(1) - with tempfile.TemporaryFile() as f: - self.stdscr.putwin(f) - f.seek(0) - curses.getwin(f) - curses.halfdelay(1) - curses.intrflush(1) + if self.isatty: + curses.intrflush(1) curses.meta(1) curses.napms(100) curses.newpad(50,50) @@ -260,7 +284,8 @@ class TestCurses(unittest.TestCase): curses.nl() ; curses.nl(1) curses.putp(b'abc') curses.qiflush() - curses.raw() ; curses.raw(1) + if self.isatty: + curses.raw() ; curses.raw(1) if hasattr(curses, 'setsyx'): curses.setsyx(5,5) curses.tigetflag('hc') @@ -282,7 +307,7 @@ class TestCurses(unittest.TestCase): curses.init_pair(2, 1,1) curses.color_content(1) curses.color_pair(2) - curses.pair_content(curses.COLOR_PAIRS - 1) + curses.pair_content(min(curses.COLOR_PAIRS - 1, 0x7fff)) curses.pair_number(0) if hasattr(curses, 'use_default_colors'): @@ -354,7 +379,6 @@ class TestCurses(unittest.TestCase): @requires_curses_func('resizeterm') def test_resizeterm(self): - stdscr = self.stdscr lines, cols = curses.LINES, curses.COLS new_lines = lines - 1 new_cols = cols + 1 |