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nixpkgs/pkgs/development/python-modules/pywbem/make_cimdatetime_timezone_aware.patch

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From bb7fa19d636d999bf844d80939e155b8f212ef3e Mon Sep 17 00:00:00 2001
From: Andreas Maier <maiera@de.ibm.com>
Date: Fri, 23 Jun 2017 19:13:51 +0200
Subject: [PATCH] Made CIMDateTime always timezone-aware, re-enabled
test_cim_types.py
Details:
- Ensured that 'CIMDateTime' objects for point in time values are
timezone-aware when supplied with a timezone-naive 'datetime'
object. This does not change the behavior, but increases code
clarity.
- Clarified that in the documentation of 'CIMDateTime'.
- Added testcases for CIMDateTime.
- Re-enabled the testing of test_cim_types.py. Since its change
to using pytest it was not run because the test methods were
all static methods which apparently does not work. Not sure
this ever worked.
Signed-off-by: Andreas Maier <maiera@de.ibm.com>
---
docs/changes.rst | 5 +
pywbem/cim_types.py | 22 +--
testsuite/test_cim_types.py | 369 +++++++++++++++++++++++---------------------
3 files changed, 207 insertions(+), 189 deletions(-)
diff --git a/docs/changes.rst b/docs/changes.rst
index 272ed30d..6fdfbcf4 100644
--- a/docs/changes.rst
+++ b/docs/changes.rst
@@ -72,6 +72,11 @@ Enhancements
* Added unit test for recorder. See issue #676
+* Ensured that `CIMDateTime` objects for point in time values are
+ timezone-aware when supplied with a timezone-naive `datetime` object.
+ This does not change the behavior, but increases code clarity.
+ Clarified that in the documentation of `CIMDateTime`. See issue #698.
+
Bug fixes
^^^^^^^^^
diff --git a/pywbem/cim_types.py b/pywbem/cim_types.py
index 6d1f140c..5ecc7707 100644
--- a/pywbem/cim_types.py
+++ b/pywbem/cim_types.py
@@ -74,6 +74,7 @@
import re
import warnings
import six
+import copy
from . import config
@@ -294,9 +295,11 @@ def __init__(self, dtarg):
* A :term:`string` object will be
interpreted as CIM datetime format (see :term:`DSP0004`) and
will result in a point in time or a time interval.
- * A :class:`py:datetime.datetime` object must be timezone-aware
- (see :class:`~pywbem.MinutesFromUTC`) and will result in a point
- in time.
+ * A :class:`py:datetime.datetime` object will result in a point
+ in time. If the :class:`py:datetime.datetime` object is
+ timezone-aware (see :class:`~pywbem.MinutesFromUTC`), the
+ specified timezone will be used. Otherwise, a default timezone
+ of UTC will be assumed.
* A :class:`py:datetime.timedelta` object will result in a time
interval.
* Another :class:`~pywbem.CIMDateTime` object will be copied.
@@ -342,14 +345,15 @@ def __init__(self, dtarg):
raise ValueError('dtarg argument "%s" has an invalid CIM '
'datetime format' % dtarg)
elif isinstance(dtarg, datetime):
- self.__datetime = dtarg
+ if dtarg.tzinfo is None:
+ self.__datetime = dtarg.replace(tzinfo=MinutesFromUTC(0))
+ else:
+ self.__datetime = copy.copy(dtarg)
elif isinstance(dtarg, timedelta):
- self.__timedelta = dtarg
+ self.__timedelta = copy.copy(dtarg)
elif isinstance(dtarg, CIMDateTime):
- # pylint: disable=protected-access
- self.__datetime = dtarg.__datetime
- # pylint: disable=protected-access
- self.__timedelta = dtarg.__timedelta
+ self.__datetime = copy.copy(dtarg.datetime)
+ self.__timedelta = copy.copy(dtarg.timedelta)
else:
raise TypeError('dtarg argument "%s" has an invalid type: %s '
'(expected datetime, timedelta, string, or '
diff --git a/testsuite/test_cim_types.py b/testsuite/test_cim_types.py
index 4ae354d3..b1f54d06 100755
--- a/testsuite/test_cim_types.py
+++ b/testsuite/test_cim_types.py
@@ -43,105 +43,99 @@ def integer_tuple(request):
return request.param
-class TestIntegers:
- """
- Test CIM integer data type classes.
- """
-
- @staticmethod
- def test_class_attrs_class(integer_tuple):
- """Test class attrs via class level"""
- obj_type, exp_cimtype, exp_minvalue, exp_maxvalue = integer_tuple
- assert obj_type.cimtype == exp_cimtype
- assert obj_type.minvalue == exp_minvalue
- assert obj_type.maxvalue == exp_maxvalue
-
- @staticmethod
- def test_class_attrs_inst(integer_tuple):
- """Test class attrs via instance level"""
- obj_type, exp_cimtype, exp_minvalue, exp_maxvalue = integer_tuple
- obj = obj_type(42)
- assert obj.cimtype == exp_cimtype
- assert obj.minvalue == exp_minvalue
- assert obj.maxvalue == exp_maxvalue
-
- @staticmethod
- def test_inheritance(integer_tuple):
- """Test inheritance"""
- obj_type = integer_tuple[0]
- obj = obj_type(42)
- assert isinstance(obj, obj_type)
- assert isinstance(obj, CIMType)
- assert isinstance(obj, CIMInt)
- assert not isinstance(obj, CIMFloat)
-
- @staticmethod
- def test_init_int(integer_tuple):
- """Test initialization from integer value"""
- obj_type = integer_tuple[0]
- obj = obj_type(42)
- assert obj == 42
-
- @staticmethod
- def test_init_str(integer_tuple):
- """Test initialization from string value"""
- obj_type = integer_tuple[0]
- obj = obj_type('42')
- assert obj == 42
-
- @staticmethod
- def test_init_str_base10(integer_tuple):
- """Test initialization from string value with base 10"""
- obj_type = integer_tuple[0]
- obj = obj_type('42', 10)
- assert obj == 42
-
- @staticmethod
- def test_init_str_base16(integer_tuple):
- """Test initialization from string value with base 16"""
- obj_type = integer_tuple[0]
- obj = obj_type('2A', 16)
- assert obj == 42
-
- @staticmethod
- def test_init_minimum(integer_tuple):
- """Test initialization from integer value at minimum"""
- obj_type = integer_tuple[0]
- exp_minvalue = integer_tuple[2]
- obj = obj_type(exp_minvalue)
- assert obj == exp_minvalue
-
- @staticmethod
- def test_init_maximum(integer_tuple):
- """Test initialization from integer value at maximum"""
- obj_type = integer_tuple[0]
- exp_maxvalue = integer_tuple[3]
- obj = obj_type(exp_maxvalue)
- assert obj == exp_maxvalue
-
- @staticmethod
- def test_init_too_low(integer_tuple):
- """Test initialization from integer value below minimum"""
- obj_type = integer_tuple[0]
- exp_minvalue = integer_tuple[2]
- try:
- obj_type(exp_minvalue - 1)
- except ValueError:
- pass
- else:
- raise AssertionError("ValueError was not raised.")
-
- @staticmethod
- def test_init_too_high(integer_tuple):
- """Test initialization from integer value above maximum"""
- obj_type = integer_tuple[0]
- exp_maxvalue = integer_tuple[3]
- try:
- obj_type(exp_maxvalue + 1)
- except ValueError:
- pass
- else:
- raise AssertionError("ValueError was not raised.")
+def test_integer_class_attrs_class(integer_tuple):
+ """Test class attrs via class level"""
+ obj_type, exp_cimtype, exp_minvalue, exp_maxvalue = integer_tuple
+ assert obj_type.cimtype == exp_cimtype
+ assert obj_type.minvalue == exp_minvalue
+ assert obj_type.maxvalue == exp_maxvalue
+
+
+def test_integer_class_attrs_inst(integer_tuple):
+ """Test class attrs via instance level"""
+ obj_type, exp_cimtype, exp_minvalue, exp_maxvalue = integer_tuple
+ obj = obj_type(42)
+ assert obj.cimtype == exp_cimtype
+ assert obj.minvalue == exp_minvalue
+ assert obj.maxvalue == exp_maxvalue
+
+
+def test_integer_inheritance(integer_tuple):
+ """Test inheritance"""
+ obj_type = integer_tuple[0]
+ obj = obj_type(42)
+ assert isinstance(obj, obj_type)
+ assert isinstance(obj, CIMType)
+ assert isinstance(obj, CIMInt)
+ assert not isinstance(obj, CIMFloat)
+
+
+def test_integer_init_int(integer_tuple):
+ """Test initialization from integer value"""
+ obj_type = integer_tuple[0]
+ obj = obj_type(42)
+ assert obj == 42
+
+
+def test_integer_init_str(integer_tuple):
+ """Test initialization from string value"""
+ obj_type = integer_tuple[0]
+ obj = obj_type('42')
+ assert obj == 42
+
+
+def test_integer_init_str_base10(integer_tuple):
+ """Test initialization from string value with base 10"""
+ obj_type = integer_tuple[0]
+ obj = obj_type('42', 10)
+ assert obj == 42
+
+
+def test_integer_init_str_base16(integer_tuple):
+ """Test initialization from string value with base 16"""
+ obj_type = integer_tuple[0]
+ obj = obj_type('2A', 16)
+ assert obj == 42
+
+
+def test_integer_init_minimum(integer_tuple):
+ """Test initialization from integer value at minimum"""
+ obj_type = integer_tuple[0]
+ exp_minvalue = integer_tuple[2]
+ obj = obj_type(exp_minvalue)
+ assert obj == exp_minvalue
+
+
+def test_integer_init_maximum(integer_tuple):
+ """Test initialization from integer value at maximum"""
+ obj_type = integer_tuple[0]
+ exp_maxvalue = integer_tuple[3]
+ obj = obj_type(exp_maxvalue)
+ assert obj == exp_maxvalue
+
+
+def test_integer_init_too_low(integer_tuple):
+ """Test initialization from integer value below minimum"""
+ obj_type = integer_tuple[0]
+ exp_minvalue = integer_tuple[2]
+ try:
+ obj_type(exp_minvalue - 1)
+ except ValueError:
+ pass
+ else:
+ raise AssertionError("ValueError was not raised.")
+
+
+def test_integer_init_too_high(integer_tuple):
+ """Test initialization from integer value above maximum"""
+ obj_type = integer_tuple[0]
+ exp_maxvalue = integer_tuple[3]
+ try:
+ obj_type(exp_maxvalue + 1)
+ except ValueError:
+ pass
+ else:
+ raise AssertionError("ValueError was not raised.")
#
@@ -164,47 +158,41 @@ def real_tuple(request):
return request.param
-class TestReals:
- """
- Test CIM real data type classes.
- """
-
- @staticmethod
- def test_class_attrs_class(real_tuple):
- """Test class attrs via class level"""
- obj_type, exp_cimtype = real_tuple
- assert obj_type.cimtype == exp_cimtype
-
- @staticmethod
- def test_class_attrs_inst(real_tuple):
- """Test class attrs via instance level"""
- obj_type, exp_cimtype = real_tuple
- obj = obj_type(42)
- assert obj.cimtype == exp_cimtype
-
- @staticmethod
- def test_inheritance(real_tuple):
- """Test inheritance"""
- obj_type = real_tuple[0]
- obj = obj_type(42)
- assert isinstance(obj, obj_type)
- assert isinstance(obj, CIMType)
- assert isinstance(obj, CIMFloat)
- assert not isinstance(obj, CIMInt)
-
- @staticmethod
- def test_init_float(real_tuple):
- """Test initialization from floating point value"""
- obj_type = real_tuple[0]
- obj = obj_type(42.0)
- assert obj == 42.0
-
- @staticmethod
- def test_init_str(real_tuple):
- """Test initialization from string value"""
- obj_type = real_tuple[0]
- obj = obj_type('42.0')
- assert obj == 42.0
+def test_real_class_attrs_class(real_tuple):
+ """Test class attrs via class level"""
+ obj_type, exp_cimtype = real_tuple
+ assert obj_type.cimtype == exp_cimtype
+
+
+def test_real_class_attrs_inst(real_tuple):
+ """Test class attrs via instance level"""
+ obj_type, exp_cimtype = real_tuple
+ obj = obj_type(42)
+ assert obj.cimtype == exp_cimtype
+
+
+def test_real_inheritance(real_tuple):
+ """Test inheritance"""
+ obj_type = real_tuple[0]
+ obj = obj_type(42)
+ assert isinstance(obj, obj_type)
+ assert isinstance(obj, CIMType)
+ assert isinstance(obj, CIMFloat)
+ assert not isinstance(obj, CIMInt)
+
+
+def test_real_init_float(real_tuple):
+ """Test initialization from floating point value"""
+ obj_type = real_tuple[0]
+ obj = obj_type(42.0)
+ assert obj == 42.0
+
+
+def test_real_init_str(real_tuple):
+ """Test initialization from string value"""
+ obj_type = real_tuple[0]
+ obj = obj_type('42.0')
+ assert obj == 42.0
#
@@ -271,6 +259,26 @@ def test_init_str(real_tuple):
'20140924193040.654321+120'
),
(
+ datetime(year=2014, month=9, day=24, hour=19, minute=30, second=40,
+ microsecond=654321, tzinfo=MinutesFromUTC(0)),
+ 'timestamp',
+ datetime(year=2014, month=9, day=24, hour=19, minute=30, second=40,
+ microsecond=654321, tzinfo=MinutesFromUTC(0)),
+ None,
+ 0,
+ '20140924193040.654321+000'
+ ),
+ (
+ datetime(year=2014, month=9, day=24, hour=19, minute=30, second=40,
+ microsecond=654321),
+ 'timestamp',
+ datetime(year=2014, month=9, day=24, hour=19, minute=30, second=40,
+ microsecond=654321, tzinfo=MinutesFromUTC(0)),
+ None,
+ 0,
+ '20140924193040.654321+000'
+ ),
+ (
'20140924193040.654321+120',
'timestamp',
datetime(year=2014, month=9, day=24, hour=19, minute=30, second=40,
@@ -325,46 +333,47 @@ def datetime_init_tuple(request):
return request.param
-class TestDatetime:
- """
- Test CIM real data type classes.
- """
-
- @staticmethod
- def test_class_attrs_class():
- """Test class attrs via class level"""
- assert CIMDateTime.cimtype == 'datetime'
-
- @staticmethod
- def test_class_attrs_inst():
- """Test class attrs via instance level"""
- obj = CIMDateTime('00000000000000.000000:000')
- assert obj.cimtype == 'datetime'
-
- @staticmethod
- def test_inheritance():
- """Test inheritance"""
- obj = CIMDateTime('00000000000000.000000:000')
- assert isinstance(obj, CIMDateTime)
- assert isinstance(obj, CIMType)
- assert not isinstance(obj, CIMFloat)
- assert not isinstance(obj, CIMInt)
-
- @staticmethod
- def test_init(datetime_init_tuple):
- """Test initialization from all input types"""
- (dtarg, exp_kind, exp_datetime, exp_timedelta, exp_minutesfromutc,
- exp_str) = datetime_init_tuple
- try:
- obj = CIMDateTime(dtarg)
- except Exception as exc:
- assert isinstance(exc, exp_kind)
- else:
- assert obj.is_interval == (exp_kind == 'interval')
- assert obj.datetime == exp_datetime
- assert obj.timedelta == exp_timedelta
- assert obj.minutes_from_utc == exp_minutesfromutc
- assert str(obj) == exp_str
+def test_datetime_class_attrs_class():
+ """Test class attrs via class level"""
+ assert CIMDateTime.cimtype == 'datetime'
+
+
+def test_datetime_class_attrs_inst():
+ """Test class attrs via instance level"""
+ obj = CIMDateTime('00000000000000.000000:000')
+ assert obj.cimtype == 'datetime'
+
+
+def test_datetime_inheritance():
+ """Test inheritance"""
+ obj = CIMDateTime('00000000000000.000000:000')
+ assert isinstance(obj, CIMDateTime)
+ assert isinstance(obj, CIMType)
+ assert not isinstance(obj, CIMFloat)
+ assert not isinstance(obj, CIMInt)
+
+
+def test_datetime_init(datetime_init_tuple):
+ """Test initialization from all input types"""
+ (dtarg, exp_kind, exp_datetime, exp_timedelta, exp_minutesfromutc,
+ exp_str) = datetime_init_tuple
+ try:
+ obj = CIMDateTime(dtarg)
+ except Exception as exc:
+ assert isinstance(exc, exp_kind)
+ else:
+ assert obj.is_interval == (exp_kind == 'interval')
+ assert obj.datetime == exp_datetime
+ if obj.datetime is not None:
+ assert isinstance(obj.datetime, datetime)
+ # We ensure that the datetime is always timezone-aware:
+ assert obj.datetime.tzinfo is not None
+ assert obj.timedelta == exp_timedelta
+ if obj.timedelta is not None:
+ assert isinstance(obj.timedelta, timedelta)
+ assert obj.minutes_from_utc == exp_minutesfromutc
+ assert str(obj) == exp_str
+
# TODO: Add testcases for get_local_utcoffset()
# TODO: Add testcases for now()
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