diff options
Diffstat (limited to 'Lib/test/datetimetester.py')
| -rw-r--r-- | Lib/test/datetimetester.py | 128 |
1 files changed, 106 insertions, 22 deletions
diff --git a/Lib/test/datetimetester.py b/Lib/test/datetimetester.py index bb18630..931ef6f 100644 --- a/Lib/test/datetimetester.py +++ b/Lib/test/datetimetester.py @@ -979,7 +979,7 @@ class TestDate(HarmlessMixedComparison, unittest.TestCase): # exempt such platforms (provided they return reasonable # results!). for insane in -1e200, 1e200: - self.assertRaises(ValueError, self.theclass.fromtimestamp, + self.assertRaises(OverflowError, self.theclass.fromtimestamp, insane) def test_today(self): @@ -1291,12 +1291,18 @@ class TestDate(HarmlessMixedComparison, unittest.TestCase): self.assertTrue(self.theclass.min) self.assertTrue(self.theclass.max) - def test_strftime_out_of_range(self): - # For nasty technical reasons, we can't handle years before 1000. - cls = self.theclass - self.assertEqual(cls(1000, 1, 1).strftime("%Y"), "1000") - for y in 1, 49, 51, 99, 100, 999: - self.assertRaises(ValueError, cls(y, 1, 1).strftime, "%Y") + def test_strftime_y2k(self): + for y in (1, 49, 70, 99, 100, 999, 1000, 1970): + d = self.theclass(y, 1, 1) + # Issue 13305: For years < 1000, the value is not always + # padded to 4 digits across platforms. The C standard + # assumes year >= 1900, so it does not specify the number + # of digits. + if d.strftime("%Y") != '%04d' % y: + # Year 42 returns '42', not padded + self.assertEqual(d.strftime("%Y"), '%d' % y) + # '0042' is obtained anyway + self.assertEqual(d.strftime("%4Y"), '%04d' % y) def test_replace(self): cls = self.theclass @@ -1731,13 +1737,74 @@ class TestDateTime(TestDate): got = self.theclass.utcfromtimestamp(ts) self.verify_field_equality(expected, got) + # Run with US-style DST rules: DST begins 2 a.m. on second Sunday in + # March (M3.2.0) and ends 2 a.m. on first Sunday in November (M11.1.0). + @support.run_with_tz('EST+05EDT,M3.2.0,M11.1.0') + def test_timestamp_naive(self): + t = self.theclass(1970, 1, 1) + self.assertEqual(t.timestamp(), 18000.0) + t = self.theclass(1970, 1, 1, 1, 2, 3, 4) + self.assertEqual(t.timestamp(), + 18000.0 + 3600 + 2*60 + 3 + 4*1e-6) + # Missing hour may produce platform-dependent result + t = self.theclass(2012, 3, 11, 2, 30) + self.assertIn(self.theclass.fromtimestamp(t.timestamp()), + [t - timedelta(hours=1), t + timedelta(hours=1)]) + # Ambiguous hour defaults to DST + t = self.theclass(2012, 11, 4, 1, 30) + self.assertEqual(self.theclass.fromtimestamp(t.timestamp()), t) + + # Timestamp may raise an overflow error on some platforms + for t in [self.theclass(1,1,1), self.theclass(9999,12,12)]: + try: + s = t.timestamp() + except OverflowError: + pass + else: + self.assertEqual(self.theclass.fromtimestamp(s), t) + + def test_timestamp_aware(self): + t = self.theclass(1970, 1, 1, tzinfo=timezone.utc) + self.assertEqual(t.timestamp(), 0.0) + t = self.theclass(1970, 1, 1, 1, 2, 3, 4, tzinfo=timezone.utc) + self.assertEqual(t.timestamp(), + 3600 + 2*60 + 3 + 4*1e-6) + t = self.theclass(1970, 1, 1, 1, 2, 3, 4, + tzinfo=timezone(timedelta(hours=-5), 'EST')) + self.assertEqual(t.timestamp(), + 18000 + 3600 + 2*60 + 3 + 4*1e-6) def test_microsecond_rounding(self): - # Test whether fromtimestamp "rounds up" floats that are less - # than 1/2 microsecond smaller than an integer. for fts in [self.theclass.fromtimestamp, self.theclass.utcfromtimestamp]: - self.assertEqual(fts(0.9999999), fts(1)) - self.assertEqual(fts(0.99999949).microsecond, 999999) + zero = fts(0) + self.assertEqual(zero.second, 0) + self.assertEqual(zero.microsecond, 0) + try: + minus_one = fts(-1e-6) + except OSError: + # localtime(-1) and gmtime(-1) is not supported on Windows + pass + else: + self.assertEqual(minus_one.second, 59) + self.assertEqual(minus_one.microsecond, 999999) + + t = fts(-1e-8) + self.assertEqual(t, minus_one) + t = fts(-9e-7) + self.assertEqual(t, minus_one) + t = fts(-1e-7) + self.assertEqual(t, minus_one) + + t = fts(1e-7) + self.assertEqual(t, zero) + t = fts(9e-7) + self.assertEqual(t, zero) + t = fts(0.99999949) + self.assertEqual(t.second, 0) + self.assertEqual(t.microsecond, 999999) + t = fts(0.9999999) + self.assertEqual(t.second, 0) + self.assertEqual(t.microsecond, 999999) def test_insane_fromtimestamp(self): # It's possible that some platform maps time_t to double, @@ -1745,7 +1812,7 @@ class TestDateTime(TestDate): # exempt such platforms (provided they return reasonable # results!). for insane in -1e200, 1e200: - self.assertRaises(ValueError, self.theclass.fromtimestamp, + self.assertRaises(OverflowError, self.theclass.fromtimestamp, insane) def test_insane_utcfromtimestamp(self): @@ -1754,7 +1821,7 @@ class TestDateTime(TestDate): # exempt such platforms (provided they return reasonable # results!). for insane in -1e200, 1e200: - self.assertRaises(ValueError, self.theclass.utcfromtimestamp, + self.assertRaises(OverflowError, self.theclass.utcfromtimestamp, insane) @unittest.skipIf(sys.platform == "win32", "Windows doesn't accept negative timestamps") def test_negative_float_fromtimestamp(self): @@ -1907,7 +1974,7 @@ class TestDateTime(TestDate): # simply can't be applied to a naive object. dt = self.theclass.now() f = FixedOffset(44, "") - self.assertRaises(TypeError, dt.astimezone) # not enough args + self.assertRaises(ValueError, dt.astimezone) # naive self.assertRaises(TypeError, dt.astimezone, f, f) # too many args self.assertRaises(TypeError, dt.astimezone, dt) # arg wrong type self.assertRaises(ValueError, dt.astimezone, f) # naive @@ -2479,7 +2546,7 @@ class TestTimeTZ(TestTime, TZInfoBase, unittest.TestCase): self.assertEqual(t1, t2) self.assertEqual(t1, t3) self.assertEqual(t2, t3) - self.assertRaises(TypeError, lambda: t4 == t5) # mixed tz-aware & naive + self.assertNotEqual(t4, t5) # mixed tz-aware & naive self.assertRaises(TypeError, lambda: t4 < t5) # mixed tz-aware & naive self.assertRaises(TypeError, lambda: t5 < t4) # mixed tz-aware & naive @@ -2631,7 +2698,7 @@ class TestTimeTZ(TestTime, TZInfoBase, unittest.TestCase): t2 = t2.replace(tzinfo=FixedOffset(None, "")) self.assertEqual(t1, t2) t2 = t2.replace(tzinfo=FixedOffset(0, "")) - self.assertRaises(TypeError, lambda: t1 == t2) + self.assertNotEqual(t1, t2) # In time w/ identical tzinfo objects, utcoffset is ignored. class Varies(tzinfo): @@ -2736,16 +2803,16 @@ class TestDateTimeTZ(TestDateTime, TZInfoBase, unittest.TestCase): microsecond=1) self.assertTrue(t1 > t2) - # Make t2 naive and it should fail. + # Make t2 naive and it should differ. t2 = self.theclass.min - self.assertRaises(TypeError, lambda: t1 == t2) + self.assertNotEqual(t1, t2) self.assertEqual(t2, t2) # It's also naive if it has tzinfo but tzinfo.utcoffset() is None. class Naive(tzinfo): def utcoffset(self, dt): return None t2 = self.theclass(5, 6, 7, tzinfo=Naive()) - self.assertRaises(TypeError, lambda: t1 == t2) + self.assertNotEqual(t1, t2) self.assertEqual(t2, t2) # OTOH, it's OK to compare two of these mixing the two ways of being @@ -3188,8 +3255,6 @@ class TestDateTimeTZ(TestDateTime, TZInfoBase, unittest.TestCase): self.assertTrue(dt.tzinfo is f44m) # Replacing with degenerate tzinfo raises an exception. self.assertRaises(ValueError, dt.astimezone, fnone) - # Ditto with None tz. - self.assertRaises(TypeError, dt.astimezone, None) # Replacing with same tzinfo makes no change. x = dt.astimezone(dt.tzinfo) self.assertTrue(x.tzinfo is f44m) @@ -3209,6 +3274,25 @@ class TestDateTimeTZ(TestDateTime, TZInfoBase, unittest.TestCase): self.assertTrue(got.tzinfo is expected.tzinfo) self.assertEqual(got, expected) + @support.run_with_tz('UTC') + def test_astimezone_default_utc(self): + dt = self.theclass.now(timezone.utc) + self.assertEqual(dt.astimezone(None), dt) + self.assertEqual(dt.astimezone(), dt) + + # Note that offset in TZ variable has the opposite sign to that + # produced by %z directive. + @support.run_with_tz('EST+05EDT,M3.2.0,M11.1.0') + def test_astimezone_default_eastern(self): + dt = self.theclass(2012, 11, 4, 6, 30, tzinfo=timezone.utc) + local = dt.astimezone() + self.assertEqual(dt, local) + self.assertEqual(local.strftime("%z %Z"), "-0500 EST") + dt = self.theclass(2012, 11, 4, 5, 30, tzinfo=timezone.utc) + local = dt.astimezone() + self.assertEqual(dt, local) + self.assertEqual(local.strftime("%z %Z"), "-0400 EDT") + def test_aware_subtract(self): cls = self.theclass @@ -3262,7 +3346,7 @@ class TestDateTimeTZ(TestDateTime, TZInfoBase, unittest.TestCase): t2 = t2.replace(tzinfo=FixedOffset(None, "")) self.assertEqual(t1, t2) t2 = t2.replace(tzinfo=FixedOffset(0, "")) - self.assertRaises(TypeError, lambda: t1 == t2) + self.assertNotEqual(t1, t2) # In datetime w/ identical tzinfo objects, utcoffset is ignored. class Varies(tzinfo): |