710 lines
23 KiB
Python
710 lines
23 KiB
Python
import inspect
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import copy
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import pickle
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from sympy.physics.units import meter
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from sympy.testing.pytest import XFAIL, raises
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from sympy.core.basic import Atom, Basic
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from sympy.core.singleton import SingletonRegistry
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from sympy.core.symbol import Str, Dummy, Symbol, Wild
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from sympy.core.numbers import (E, I, pi, oo, zoo, nan, Integer,
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Rational, Float, AlgebraicNumber)
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from sympy.core.relational import (Equality, GreaterThan, LessThan, Relational,
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StrictGreaterThan, StrictLessThan, Unequality)
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from sympy.core.add import Add
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from sympy.core.mul import Mul
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from sympy.core.power import Pow
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from sympy.core.function import Derivative, Function, FunctionClass, Lambda, \
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WildFunction
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from sympy.sets.sets import Interval
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from sympy.core.multidimensional import vectorize
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from sympy.external.gmpy import HAS_GMPY
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from sympy.utilities.exceptions import SymPyDeprecationWarning
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from sympy.core.singleton import S
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from sympy.core.symbol import symbols
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from sympy.external import import_module
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cloudpickle = import_module('cloudpickle')
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excluded_attrs = {
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'_assumptions', # This is a local cache that isn't automatically filled on creation
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'_mhash', # Cached after __hash__ is called but set to None after creation
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'is_EmptySet', # Deprecated from SymPy 1.5. This can be removed when is_EmptySet is removed.
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'expr_free_symbols', # Deprecated from SymPy 1.9. This can be removed when exr_free_symbols is removed.
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'_mat', # Deprecated from SymPy 1.9. This can be removed when Matrix._mat is removed
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'_smat', # Deprecated from SymPy 1.9. This can be removed when SparseMatrix._smat is removed
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}
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def check(a, exclude=[], check_attr=True):
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""" Check that pickling and copying round-trips.
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"""
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# Pickling with protocols 0 and 1 is disabled for Basic instances:
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if isinstance(a, Basic):
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for protocol in [0, 1]:
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raises(NotImplementedError, lambda: pickle.dumps(a, protocol))
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protocols = [2, copy.copy, copy.deepcopy, 3, 4]
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if cloudpickle:
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protocols.extend([cloudpickle])
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for protocol in protocols:
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if protocol in exclude:
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continue
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if callable(protocol):
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if isinstance(a, type):
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# Classes can't be copied, but that's okay.
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continue
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b = protocol(a)
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elif inspect.ismodule(protocol):
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b = protocol.loads(protocol.dumps(a))
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else:
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b = pickle.loads(pickle.dumps(a, protocol))
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d1 = dir(a)
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d2 = dir(b)
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assert set(d1) == set(d2)
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if not check_attr:
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continue
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def c(a, b, d):
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for i in d:
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if i in excluded_attrs:
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continue
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if not hasattr(a, i):
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continue
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attr = getattr(a, i)
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if not hasattr(attr, "__call__"):
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assert hasattr(b, i), i
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assert getattr(b, i) == attr, "%s != %s, protocol: %s" % (getattr(b, i), attr, protocol)
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c(a, b, d1)
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c(b, a, d2)
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#================== core =========================
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def test_core_basic():
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for c in (Atom, Atom(), Basic, Basic(), SingletonRegistry, S):
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check(c)
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def test_core_Str():
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check(Str('x'))
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def test_core_symbol():
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# make the Symbol a unique name that doesn't class with any other
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# testing variable in this file since after this test the symbol
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# having the same name will be cached as noncommutative
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for c in (Dummy, Dummy("x", commutative=False), Symbol,
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Symbol("_issue_3130", commutative=False), Wild, Wild("x")):
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check(c)
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def test_core_numbers():
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for c in (Integer(2), Rational(2, 3), Float("1.2")):
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check(c)
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for c in (AlgebraicNumber, AlgebraicNumber(sqrt(3))):
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check(c, check_attr=False)
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def test_core_float_copy():
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# See gh-7457
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y = Symbol("x") + 1.0
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check(y) # does not raise TypeError ("argument is not an mpz")
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def test_core_relational():
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x = Symbol("x")
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y = Symbol("y")
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for c in (Equality, Equality(x, y), GreaterThan, GreaterThan(x, y),
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LessThan, LessThan(x, y), Relational, Relational(x, y),
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StrictGreaterThan, StrictGreaterThan(x, y), StrictLessThan,
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StrictLessThan(x, y), Unequality, Unequality(x, y)):
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check(c)
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def test_core_add():
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x = Symbol("x")
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for c in (Add, Add(x, 4)):
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check(c)
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def test_core_mul():
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x = Symbol("x")
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for c in (Mul, Mul(x, 4)):
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check(c)
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def test_core_power():
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x = Symbol("x")
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for c in (Pow, Pow(x, 4)):
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check(c)
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def test_core_function():
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x = Symbol("x")
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for f in (Derivative, Derivative(x), Function, FunctionClass, Lambda,
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WildFunction):
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check(f)
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def test_core_undefinedfunctions():
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f = Function("f")
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# Full XFAILed test below
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exclude = list(range(5))
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# https://github.com/cloudpipe/cloudpickle/issues/65
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# https://github.com/cloudpipe/cloudpickle/issues/190
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exclude.append(cloudpickle)
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check(f, exclude=exclude)
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@XFAIL
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def test_core_undefinedfunctions_fail():
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# This fails because f is assumed to be a class at sympy.basic.function.f
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f = Function("f")
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check(f)
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def test_core_interval():
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for c in (Interval, Interval(0, 2)):
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check(c)
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def test_core_multidimensional():
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for c in (vectorize, vectorize(0)):
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check(c)
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def test_Singletons():
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protocols = [0, 1, 2, 3, 4]
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copiers = [copy.copy, copy.deepcopy]
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copiers += [lambda x: pickle.loads(pickle.dumps(x, proto))
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for proto in protocols]
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if cloudpickle:
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copiers += [lambda x: cloudpickle.loads(cloudpickle.dumps(x))]
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for obj in (Integer(-1), Integer(0), Integer(1), Rational(1, 2), pi, E, I,
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oo, -oo, zoo, nan, S.GoldenRatio, S.TribonacciConstant,
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S.EulerGamma, S.Catalan, S.EmptySet, S.IdentityFunction):
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for func in copiers:
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assert func(obj) is obj
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#================== functions ===================
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from sympy.functions import (Piecewise, lowergamma, acosh, chebyshevu,
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chebyshevt, ln, chebyshevt_root, legendre, Heaviside, bernoulli, coth,
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tanh, assoc_legendre, sign, arg, asin, DiracDelta, re, rf, Abs,
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uppergamma, binomial, sinh, cos, cot, acos, acot, gamma, bell,
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hermite, harmonic, LambertW, zeta, log, factorial, asinh, acoth, cosh,
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dirichlet_eta, Eijk, loggamma, erf, ceiling, im, fibonacci,
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tribonacci, conjugate, tan, chebyshevu_root, floor, atanh, sqrt, sin,
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atan, ff, lucas, atan2, polygamma, exp)
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def test_functions():
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one_var = (acosh, ln, Heaviside, factorial, bernoulli, coth, tanh,
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sign, arg, asin, DiracDelta, re, Abs, sinh, cos, cot, acos, acot,
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gamma, bell, harmonic, LambertW, zeta, log, factorial, asinh,
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acoth, cosh, dirichlet_eta, loggamma, erf, ceiling, im, fibonacci,
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tribonacci, conjugate, tan, floor, atanh, sin, atan, lucas, exp)
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two_var = (rf, ff, lowergamma, chebyshevu, chebyshevt, binomial,
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atan2, polygamma, hermite, legendre, uppergamma)
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x, y, z = symbols("x,y,z")
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others = (chebyshevt_root, chebyshevu_root, Eijk(x, y, z),
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Piecewise( (0, x < -1), (x**2, x <= 1), (x**3, True)),
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assoc_legendre)
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for cls in one_var:
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check(cls)
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c = cls(x)
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check(c)
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for cls in two_var:
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check(cls)
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c = cls(x, y)
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check(c)
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for cls in others:
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check(cls)
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#================== geometry ====================
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from sympy.geometry.entity import GeometryEntity
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from sympy.geometry.point import Point
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from sympy.geometry.ellipse import Circle, Ellipse
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from sympy.geometry.line import Line, LinearEntity, Ray, Segment
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from sympy.geometry.polygon import Polygon, RegularPolygon, Triangle
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def test_geometry():
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p1 = Point(1, 2)
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p2 = Point(2, 3)
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p3 = Point(0, 0)
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p4 = Point(0, 1)
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for c in (
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GeometryEntity, GeometryEntity(), Point, p1, Circle, Circle(p1, 2),
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Ellipse, Ellipse(p1, 3, 4), Line, Line(p1, p2), LinearEntity,
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LinearEntity(p1, p2), Ray, Ray(p1, p2), Segment, Segment(p1, p2),
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Polygon, Polygon(p1, p2, p3, p4), RegularPolygon,
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RegularPolygon(p1, 4, 5), Triangle, Triangle(p1, p2, p3)):
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check(c, check_attr=False)
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#================== integrals ====================
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from sympy.integrals.integrals import Integral
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def test_integrals():
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x = Symbol("x")
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for c in (Integral, Integral(x)):
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check(c)
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#==================== logic =====================
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from sympy.core.logic import Logic
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def test_logic():
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for c in (Logic, Logic(1)):
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check(c)
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#================== matrices ====================
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from sympy.matrices import Matrix, SparseMatrix
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def test_matrices():
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for c in (Matrix, Matrix([1, 2, 3]), SparseMatrix, SparseMatrix([[1, 2], [3, 4]])):
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check(c)
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#================== ntheory =====================
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from sympy.ntheory.generate import Sieve
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def test_ntheory():
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for c in (Sieve, Sieve()):
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check(c)
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#================== physics =====================
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from sympy.physics.paulialgebra import Pauli
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from sympy.physics.units import Unit
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def test_physics():
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for c in (Unit, meter, Pauli, Pauli(1)):
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check(c)
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#================== plotting ====================
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# XXX: These tests are not complete, so XFAIL them
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@XFAIL
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def test_plotting():
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from sympy.plotting.pygletplot.color_scheme import ColorGradient, ColorScheme
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from sympy.plotting.pygletplot.managed_window import ManagedWindow
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from sympy.plotting.plot import Plot, ScreenShot
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from sympy.plotting.pygletplot.plot_axes import PlotAxes, PlotAxesBase, PlotAxesFrame, PlotAxesOrdinate
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from sympy.plotting.pygletplot.plot_camera import PlotCamera
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from sympy.plotting.pygletplot.plot_controller import PlotController
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from sympy.plotting.pygletplot.plot_curve import PlotCurve
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from sympy.plotting.pygletplot.plot_interval import PlotInterval
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from sympy.plotting.pygletplot.plot_mode import PlotMode
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from sympy.plotting.pygletplot.plot_modes import Cartesian2D, Cartesian3D, Cylindrical, \
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ParametricCurve2D, ParametricCurve3D, ParametricSurface, Polar, Spherical
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from sympy.plotting.pygletplot.plot_object import PlotObject
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from sympy.plotting.pygletplot.plot_surface import PlotSurface
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from sympy.plotting.pygletplot.plot_window import PlotWindow
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for c in (
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ColorGradient, ColorGradient(0.2, 0.4), ColorScheme, ManagedWindow,
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ManagedWindow, Plot, ScreenShot, PlotAxes, PlotAxesBase,
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PlotAxesFrame, PlotAxesOrdinate, PlotCamera, PlotController,
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PlotCurve, PlotInterval, PlotMode, Cartesian2D, Cartesian3D,
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Cylindrical, ParametricCurve2D, ParametricCurve3D,
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ParametricSurface, Polar, Spherical, PlotObject, PlotSurface,
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PlotWindow):
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check(c)
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@XFAIL
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def test_plotting2():
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#from sympy.plotting.color_scheme import ColorGradient
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from sympy.plotting.pygletplot.color_scheme import ColorScheme
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#from sympy.plotting.managed_window import ManagedWindow
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from sympy.plotting.plot import Plot
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#from sympy.plotting.plot import ScreenShot
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from sympy.plotting.pygletplot.plot_axes import PlotAxes
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#from sympy.plotting.plot_axes import PlotAxesBase, PlotAxesFrame, PlotAxesOrdinate
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#from sympy.plotting.plot_camera import PlotCamera
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#from sympy.plotting.plot_controller import PlotController
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#from sympy.plotting.plot_curve import PlotCurve
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#from sympy.plotting.plot_interval import PlotInterval
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#from sympy.plotting.plot_mode import PlotMode
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#from sympy.plotting.plot_modes import Cartesian2D, Cartesian3D, Cylindrical, \
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# ParametricCurve2D, ParametricCurve3D, ParametricSurface, Polar, Spherical
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#from sympy.plotting.plot_object import PlotObject
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#from sympy.plotting.plot_surface import PlotSurface
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# from sympy.plotting.plot_window import PlotWindow
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check(ColorScheme("rainbow"))
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check(Plot(1, visible=False))
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check(PlotAxes())
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#================== polys =======================
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from sympy.polys.domains.integerring import ZZ
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from sympy.polys.domains.rationalfield import QQ
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from sympy.polys.orderings import lex
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from sympy.polys.polytools import Poly
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def test_pickling_polys_polytools():
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from sympy.polys.polytools import PurePoly
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# from sympy.polys.polytools import GroebnerBasis
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x = Symbol('x')
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for c in (Poly, Poly(x, x)):
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check(c)
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for c in (PurePoly, PurePoly(x)):
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check(c)
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# TODO: fix pickling of Options class (see GroebnerBasis._options)
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# for c in (GroebnerBasis, GroebnerBasis([x**2 - 1], x, order=lex)):
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# check(c)
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def test_pickling_polys_polyclasses():
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from sympy.polys.polyclasses import DMP, DMF, ANP
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for c in (DMP, DMP([[ZZ(1)], [ZZ(2)], [ZZ(3)]], ZZ)):
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check(c)
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for c in (DMF, DMF(([ZZ(1), ZZ(2)], [ZZ(1), ZZ(3)]), ZZ)):
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check(c)
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for c in (ANP, ANP([QQ(1), QQ(2)], [QQ(1), QQ(2), QQ(3)], QQ)):
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check(c)
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@XFAIL
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def test_pickling_polys_rings():
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# NOTE: can't use protocols < 2 because we have to execute __new__ to
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# make sure caching of rings works properly.
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from sympy.polys.rings import PolyRing
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ring = PolyRing("x,y,z", ZZ, lex)
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for c in (PolyRing, ring):
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check(c, exclude=[0, 1])
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for c in (ring.dtype, ring.one):
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check(c, exclude=[0, 1], check_attr=False) # TODO: Py3k
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def test_pickling_polys_fields():
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pass
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# NOTE: can't use protocols < 2 because we have to execute __new__ to
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# make sure caching of fields works properly.
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# from sympy.polys.fields import FracField
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# field = FracField("x,y,z", ZZ, lex)
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# TODO: AssertionError: assert id(obj) not in self.memo
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# for c in (FracField, field):
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# check(c, exclude=[0, 1])
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# TODO: AssertionError: assert id(obj) not in self.memo
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# for c in (field.dtype, field.one):
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# check(c, exclude=[0, 1])
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def test_pickling_polys_elements():
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from sympy.polys.domains.pythonrational import PythonRational
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#from sympy.polys.domains.pythonfinitefield import PythonFiniteField
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#from sympy.polys.domains.mpelements import MPContext
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for c in (PythonRational, PythonRational(1, 7)):
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check(c)
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#gf = PythonFiniteField(17)
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# TODO: fix pickling of ModularInteger
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# for c in (gf.dtype, gf(5)):
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# check(c)
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#mp = MPContext()
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# TODO: fix pickling of RealElement
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# for c in (mp.mpf, mp.mpf(1.0)):
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# check(c)
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# TODO: fix pickling of ComplexElement
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# for c in (mp.mpc, mp.mpc(1.0, -1.5)):
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# check(c)
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def test_pickling_polys_domains():
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# from sympy.polys.domains.pythonfinitefield import PythonFiniteField
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from sympy.polys.domains.pythonintegerring import PythonIntegerRing
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from sympy.polys.domains.pythonrationalfield import PythonRationalField
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# TODO: fix pickling of ModularInteger
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# for c in (PythonFiniteField, PythonFiniteField(17)):
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# check(c)
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for c in (PythonIntegerRing, PythonIntegerRing()):
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check(c, check_attr=False)
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for c in (PythonRationalField, PythonRationalField()):
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check(c, check_attr=False)
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if HAS_GMPY:
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# from sympy.polys.domains.gmpyfinitefield import GMPYFiniteField
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from sympy.polys.domains.gmpyintegerring import GMPYIntegerRing
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from sympy.polys.domains.gmpyrationalfield import GMPYRationalField
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# TODO: fix pickling of ModularInteger
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# for c in (GMPYFiniteField, GMPYFiniteField(17)):
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# check(c)
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for c in (GMPYIntegerRing, GMPYIntegerRing()):
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check(c, check_attr=False)
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for c in (GMPYRationalField, GMPYRationalField()):
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check(c, check_attr=False)
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#from sympy.polys.domains.realfield import RealField
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#from sympy.polys.domains.complexfield import ComplexField
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from sympy.polys.domains.algebraicfield import AlgebraicField
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#from sympy.polys.domains.polynomialring import PolynomialRing
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#from sympy.polys.domains.fractionfield import FractionField
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from sympy.polys.domains.expressiondomain import ExpressionDomain
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# TODO: fix pickling of RealElement
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# for c in (RealField, RealField(100)):
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# check(c)
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|
|
|
# TODO: fix pickling of ComplexElement
|
|
# for c in (ComplexField, ComplexField(100)):
|
|
# check(c)
|
|
|
|
for c in (AlgebraicField, AlgebraicField(QQ, sqrt(3))):
|
|
check(c, check_attr=False)
|
|
|
|
# TODO: AssertionError
|
|
# for c in (PolynomialRing, PolynomialRing(ZZ, "x,y,z")):
|
|
# check(c)
|
|
|
|
# TODO: AttributeError: 'PolyElement' object has no attribute 'ring'
|
|
# for c in (FractionField, FractionField(ZZ, "x,y,z")):
|
|
# check(c)
|
|
|
|
for c in (ExpressionDomain, ExpressionDomain()):
|
|
check(c, check_attr=False)
|
|
|
|
|
|
def test_pickling_polys_orderings():
|
|
from sympy.polys.orderings import (LexOrder, GradedLexOrder,
|
|
ReversedGradedLexOrder, InverseOrder)
|
|
# from sympy.polys.orderings import ProductOrder
|
|
|
|
for c in (LexOrder, LexOrder()):
|
|
check(c)
|
|
|
|
for c in (GradedLexOrder, GradedLexOrder()):
|
|
check(c)
|
|
|
|
for c in (ReversedGradedLexOrder, ReversedGradedLexOrder()):
|
|
check(c)
|
|
|
|
# TODO: Argh, Python is so naive. No lambdas nor inner function support in
|
|
# pickling module. Maybe someone could figure out what to do with this.
|
|
#
|
|
# for c in (ProductOrder, ProductOrder((LexOrder(), lambda m: m[:2]),
|
|
# (GradedLexOrder(), lambda m: m[2:]))):
|
|
# check(c)
|
|
|
|
for c in (InverseOrder, InverseOrder(LexOrder())):
|
|
check(c)
|
|
|
|
def test_pickling_polys_monomials():
|
|
from sympy.polys.monomials import MonomialOps, Monomial
|
|
x, y, z = symbols("x,y,z")
|
|
|
|
for c in (MonomialOps, MonomialOps(3)):
|
|
check(c)
|
|
|
|
for c in (Monomial, Monomial((1, 2, 3), (x, y, z))):
|
|
check(c)
|
|
|
|
def test_pickling_polys_errors():
|
|
from sympy.polys.polyerrors import (HeuristicGCDFailed,
|
|
HomomorphismFailed, IsomorphismFailed, ExtraneousFactors,
|
|
EvaluationFailed, RefinementFailed, CoercionFailed, NotInvertible,
|
|
NotReversible, NotAlgebraic, DomainError, PolynomialError,
|
|
UnificationFailed, GeneratorsError, GeneratorsNeeded,
|
|
UnivariatePolynomialError, MultivariatePolynomialError, OptionError,
|
|
FlagError)
|
|
# from sympy.polys.polyerrors import (ExactQuotientFailed,
|
|
# OperationNotSupported, ComputationFailed, PolificationFailed)
|
|
|
|
# x = Symbol('x')
|
|
|
|
# TODO: TypeError: __init__() takes at least 3 arguments (1 given)
|
|
# for c in (ExactQuotientFailed, ExactQuotientFailed(x, 3*x, ZZ)):
|
|
# check(c)
|
|
|
|
# TODO: TypeError: can't pickle instancemethod objects
|
|
# for c in (OperationNotSupported, OperationNotSupported(Poly(x), Poly.gcd)):
|
|
# check(c)
|
|
|
|
for c in (HeuristicGCDFailed, HeuristicGCDFailed()):
|
|
check(c)
|
|
|
|
for c in (HomomorphismFailed, HomomorphismFailed()):
|
|
check(c)
|
|
|
|
for c in (IsomorphismFailed, IsomorphismFailed()):
|
|
check(c)
|
|
|
|
for c in (ExtraneousFactors, ExtraneousFactors()):
|
|
check(c)
|
|
|
|
for c in (EvaluationFailed, EvaluationFailed()):
|
|
check(c)
|
|
|
|
for c in (RefinementFailed, RefinementFailed()):
|
|
check(c)
|
|
|
|
for c in (CoercionFailed, CoercionFailed()):
|
|
check(c)
|
|
|
|
for c in (NotInvertible, NotInvertible()):
|
|
check(c)
|
|
|
|
for c in (NotReversible, NotReversible()):
|
|
check(c)
|
|
|
|
for c in (NotAlgebraic, NotAlgebraic()):
|
|
check(c)
|
|
|
|
for c in (DomainError, DomainError()):
|
|
check(c)
|
|
|
|
for c in (PolynomialError, PolynomialError()):
|
|
check(c)
|
|
|
|
for c in (UnificationFailed, UnificationFailed()):
|
|
check(c)
|
|
|
|
for c in (GeneratorsError, GeneratorsError()):
|
|
check(c)
|
|
|
|
for c in (GeneratorsNeeded, GeneratorsNeeded()):
|
|
check(c)
|
|
|
|
# TODO: PicklingError: Can't pickle <function <lambda> at 0x38578c0>: it's not found as __main__.<lambda>
|
|
# for c in (ComputationFailed, ComputationFailed(lambda t: t, 3, None)):
|
|
# check(c)
|
|
|
|
for c in (UnivariatePolynomialError, UnivariatePolynomialError()):
|
|
check(c)
|
|
|
|
for c in (MultivariatePolynomialError, MultivariatePolynomialError()):
|
|
check(c)
|
|
|
|
# TODO: TypeError: __init__() takes at least 3 arguments (1 given)
|
|
# for c in (PolificationFailed, PolificationFailed({}, x, x, False)):
|
|
# check(c)
|
|
|
|
for c in (OptionError, OptionError()):
|
|
check(c)
|
|
|
|
for c in (FlagError, FlagError()):
|
|
check(c)
|
|
|
|
#def test_pickling_polys_options():
|
|
#from sympy.polys.polyoptions import Options
|
|
|
|
# TODO: fix pickling of `symbols' flag
|
|
# for c in (Options, Options((), dict(domain='ZZ', polys=False))):
|
|
# check(c)
|
|
|
|
# TODO: def test_pickling_polys_rootisolation():
|
|
# RealInterval
|
|
# ComplexInterval
|
|
|
|
def test_pickling_polys_rootoftools():
|
|
from sympy.polys.rootoftools import CRootOf, RootSum
|
|
|
|
x = Symbol('x')
|
|
f = x**3 + x + 3
|
|
|
|
for c in (CRootOf, CRootOf(f, 0)):
|
|
check(c)
|
|
|
|
for c in (RootSum, RootSum(f, exp)):
|
|
check(c)
|
|
|
|
#================== printing ====================
|
|
from sympy.printing.latex import LatexPrinter
|
|
from sympy.printing.mathml import MathMLContentPrinter, MathMLPresentationPrinter
|
|
from sympy.printing.pretty.pretty import PrettyPrinter
|
|
from sympy.printing.pretty.stringpict import prettyForm, stringPict
|
|
from sympy.printing.printer import Printer
|
|
from sympy.printing.python import PythonPrinter
|
|
|
|
|
|
def test_printing():
|
|
for c in (LatexPrinter, LatexPrinter(), MathMLContentPrinter,
|
|
MathMLPresentationPrinter, PrettyPrinter, prettyForm, stringPict,
|
|
stringPict("a"), Printer, Printer(), PythonPrinter,
|
|
PythonPrinter()):
|
|
check(c)
|
|
|
|
|
|
@XFAIL
|
|
def test_printing1():
|
|
check(MathMLContentPrinter())
|
|
|
|
|
|
@XFAIL
|
|
def test_printing2():
|
|
check(MathMLPresentationPrinter())
|
|
|
|
|
|
@XFAIL
|
|
def test_printing3():
|
|
check(PrettyPrinter())
|
|
|
|
#================== series ======================
|
|
from sympy.series.limits import Limit
|
|
from sympy.series.order import Order
|
|
|
|
|
|
def test_series():
|
|
e = Symbol("e")
|
|
x = Symbol("x")
|
|
for c in (Limit, Limit(e, x, 1), Order, Order(e)):
|
|
check(c)
|
|
|
|
#================== concrete ==================
|
|
from sympy.concrete.products import Product
|
|
from sympy.concrete.summations import Sum
|
|
|
|
|
|
def test_concrete():
|
|
x = Symbol("x")
|
|
for c in (Product, Product(x, (x, 2, 4)), Sum, Sum(x, (x, 2, 4))):
|
|
check(c)
|
|
|
|
def test_deprecation_warning():
|
|
w = SymPyDeprecationWarning("message", deprecated_since_version='1.0', active_deprecations_target="active-deprecations")
|
|
check(w)
|
|
|
|
def test_issue_18438():
|
|
assert pickle.loads(pickle.dumps(S.Half)) == S.Half
|
|
|
|
|
|
#================= old pickles =================
|
|
def test_unpickle_from_older_versions():
|
|
data = (
|
|
b'\x80\x04\x95^\x00\x00\x00\x00\x00\x00\x00\x8c\x10sympy.core.power'
|
|
b'\x94\x8c\x03Pow\x94\x93\x94\x8c\x12sympy.core.numbers\x94\x8c'
|
|
b'\x07Integer\x94\x93\x94K\x02\x85\x94R\x94}\x94bh\x03\x8c\x04Half'
|
|
b'\x94\x93\x94)R\x94}\x94b\x86\x94R\x94}\x94b.'
|
|
)
|
|
assert pickle.loads(data) == sqrt(2)
|