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[3.8] [3.9] bpo-42681: Fix test_curses failures related to color pairs (GH-24089) (GH-24113) by serhiy-storchaka · Pull Request #24116 · python/cpython · GitHub

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[3.8] [3.9] bpo-42681: Fix test_curses failures related to color pairs (GH-24089) (GH-24113) #24116

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serhiy-storchaka merged 1 commit into from
Jan 5, 2021
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[3.8] [3.9] bpo-42681: Fix test_curses failures related to color pairs (GH-24089) (GH-24113) #24116

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33 changes: 26 additions & 7 deletions Lib/test/test_curses.py
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Original file line number Diff line number Diff line change
Expand Up @@ -319,11 +319,20 @@ def bad_colors(self):
def bad_pairs(self):
return (-2**31 - 1, 2**31, -2**63 - 1, 2**63, 2**64)

def test_start_color(self):
if not curses.has_colors():
self.skipTest('requires colors support')
curses.start_color()
if verbose:
print(f'COLORS = {curses.COLORS}', file=sys.stderr)
print(f'COLOR_PAIRS = {curses.COLOR_PAIRS}', file=sys.stderr)

@requires_colors
def test_color_content(self):
self.assertEqual(curses.color_content(curses.COLOR_BLACK), (0, 0, 0))
curses.color_content(0)
curses.color_content(min(curses.COLORS - 1, SHORT_MAX))
maxcolor = min(curses.COLORS - 1, SHORT_MAX)
curses.color_content(maxcolor)

for color in self.bad_colors():
self.assertRaises(OverflowError, curses.color_content, color)
Expand Down Expand Up @@ -364,13 +373,18 @@ def test_init_color(self):
self.assertRaises(curses.error, curses.init_color, 0, 0, comp, 0)
self.assertRaises(curses.error, curses.init_color, 0, 0, 0, comp)

def get_pair_limit(self):
return min(curses.COLOR_PAIRS, SHORT_MAX)

@requires_colors
def test_pair_content(self):
if not hasattr(curses, 'use_default_colors'):
self.assertEqual(curses.pair_content(0),
(curses.COLOR_WHITE, curses.COLOR_BLACK))
curses.pair_content(0)
curses.pair_content(min(curses.COLOR_PAIRS - 1, SHORT_MAX))
maxpair = self.get_pair_limit() - 1
if maxpair > 0:
curses.pair_content(maxpair)

for pair in self.bad_pairs():
self.assertRaises(OverflowError, curses.pair_content, pair)
Expand All @@ -385,11 +399,14 @@ def test_init_pair(self):
curses.init_pair(1, 0, 0)
self.assertEqual(curses.pair_content(1), (0, 0))
maxcolor = min(curses.COLORS - 1, SHORT_MAX)
curses.init_pair(1, maxcolor, maxcolor)
self.assertEqual(curses.pair_content(1), (maxcolor, maxcolor))
maxpair = min(curses.COLOR_PAIRS - 1, SHORT_MAX)
curses.init_pair(maxpair, 2, 3)
self.assertEqual(curses.pair_content(maxpair), (2, 3))
curses.init_pair(1, maxcolor, 0)
self.assertEqual(curses.pair_content(1), (maxcolor, 0))
curses.init_pair(1, 0, maxcolor)
self.assertEqual(curses.pair_content(1), (0, maxcolor))
maxpair = self.get_pair_limit() - 1
if maxpair > 1:
curses.init_pair(maxpair, 0, 0)
self.assertEqual(curses.pair_content(maxpair), (0, 0))

for pair in self.bad_pairs():
self.assertRaises(OverflowError, curses.init_pair, pair, 0, 0)
Expand Down Expand Up @@ -587,6 +604,8 @@ def test_update_lines_cols(self):
@requires_curses_func('ncurses_version')
def test_ncurses_version(self):
v = curses.ncurses_version
if verbose:
print(f'ncurses_version = {curses.ncurses_version}', flush=True)
self.assertIsInstance(v[:], tuple)
self.assertEqual(len(v), 3)
self.assertIsInstance(v[0], int)
Expand Down
26 changes: 18 additions & 8 deletions Modules/_cursesmodule.c
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Expand Up @@ -2592,13 +2592,18 @@ _curses_color_content_impl(PyObject *module, short color_number)
PyCursesInitialised;
PyCursesInitialisedColor;

if (color_content(color_number, &r, &g, &b) != ERR)
return Py_BuildValue("(iii)", r, g, b);
else {
PyErr_SetString(PyCursesError,
"Argument 1 was out of range. Check value of COLORS.");
if (color_content(color_number, &r, &g, &b) == ERR) {
if (color_number >= COLORS) {
PyErr_SetString(PyCursesError,
"Argument 1 was out of range. Check value of COLORS.");
}
else {
PyErr_SetString(PyCursesError, "color_content() returned ERR");
}
return NULL;
}

return Py_BuildValue("(iii)", r, g, b);
}

/*[clinic input]
Expand Down Expand Up @@ -3617,9 +3622,14 @@ _curses_pair_content_impl(PyObject *module, short pair_number)
PyCursesInitialised;
PyCursesInitialisedColor;

if (pair_content(pair_number, &f, &b)==ERR) {
PyErr_SetString(PyCursesError,
"Argument 1 was out of range. (0..COLOR_PAIRS-1)");
if (pair_content(pair_number, &f, &b) == ERR) {
if (pair_number >= COLOR_PAIRS) {
PyErr_SetString(PyCursesError,
"Argument 1 was out of range. (0..COLOR_PAIRS-1)");
}
else {
PyErr_SetString(PyCursesError, "pair_content() returned ERR");
}
return NULL;
}

Expand Down
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