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bpo-26669: Fix nan arg value error in pytime.c #3085

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Merged
vstinner merged 4 commits into from
Sep 8, 2017
Merged

bpo-26669: Fix nan arg value error in pytime.c #3085

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2bd36c3
Fix #26669
hahnlee Aug 13, 2017
9738f51
Modify NaN check function and error message
hahnlee Aug 18, 2017
5812e36
Fix pytime.c when arg is nan
hahnlee Sep 8, 2017
eb06ed0
fix whitespace
hahnlee Sep 8, 2017
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4 changes: 4 additions & 0 deletions Lib/test/test_time.py
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Original file line number Diff line number Diff line change
Expand Up @@ -489,6 +489,10 @@ def test_localtime_failure(self):
self.assertRaises(OSError, time.localtime, invalid_time_t)
self.assertRaises(OSError, time.ctime, invalid_time_t)

# Issue #26669: check for localtime() failure
self.assertRaises(ValueError, time.localtime, float("nan"))
self.assertRaises(ValueError, time.ctime, float("nan"))

@vstinner vstinner Aug 31, 2017

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Ok for "functional" tests", but I also would like to see unit tests on the following _testcapi functions:

  • pytime_object_to_time_t
  • pytime_object_to_timeval
  • pytime_object_to_timespec
  • PyTime_FromSeconds
  • PyTime_FromSecondsObject
  • PyTime_AsSecondsDouble

See CPyTimeTestCase in test_time.py.


def test_get_clock_info(self):
clocks = ['clock', 'perf_counter', 'process_time', 'time']
if hasattr(time, 'monotonic'):
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5 changes: 5 additions & 0 deletions Python/pytime.c
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Expand Up @@ -155,6 +155,11 @@ _PyTime_ObjectToTime_t(PyObject *obj, time_t *sec, _PyTime_round_t round)
volatile double d;

d = PyFloat_AsDouble(obj);
if (Py_IS_NAN(d)) {
PyErr_SetString(PyExc_ValueError, "Invalid value NaN (not a number)");
return -1;
}

d = _PyTime_Round(d, round);
(void)modf(d, &intpart);

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