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#!/usr/bin/env python
#
# Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
# Copyright (c) 2008-2016 California Institute of Technology.
# Copyright (c) 2016-2023 The Uncertainty Quantification Foundation.
# License: 3-clause BSD. The full license text is available at:
# - https://github.com/uqfoundation/dill/blob/master/LICENSE
from dill.source import getsource, getname, _wrap, likely_import
from dill.source import getimportable
from dill._dill import IS_PYPY
import sys
PY310b = 0x30a00b1
f = lambda x: x**2
def g(x): return f(x) - x
def h(x):
def g(x): return x
return g(x) - x
class Foo(object):
def bar(self, x):
return x*x+x
_foo = Foo()
def add(x,y):
return x+y
# yes, same as 'f', but things are tricky when it comes to pointers
squared = lambda x:x**2
class Bar:
pass
_bar = Bar()
# inspect.getsourcelines # dill.source.getblocks
def test_getsource():
assert getsource(f) == 'f = lambda x: x**2\n'
assert getsource(g) == 'def g(x): return f(x) - x\n'
assert getsource(h) == 'def h(x):\n def g(x): return x\n return g(x) - x\n'
assert getname(f) == 'f'
assert getname(g) == 'g'
assert getname(h) == 'h'
assert _wrap(f)(4) == 16
assert _wrap(g)(4) == 12
assert _wrap(h)(4) == 0
assert getname(Foo) == 'Foo'
assert getname(Bar) == 'Bar'
assert getsource(Bar) == 'class Bar:\n pass\n'
assert getsource(Foo) == 'class Foo(object):\n def bar(self, x):\n return x*x+x\n'
#XXX: add getsource for _foo, _bar
# test itself
def test_itself():
assert likely_import(likely_import)=='from dill.source import likely_import\n'
# builtin functions and objects
def test_builtin():
assert likely_import(pow) == 'pow\n'
assert likely_import(100) == '100\n'
assert likely_import(True) == 'True\n'
assert likely_import(pow, explicit=True) == 'from builtins import pow\n'
assert likely_import(100, explicit=True) == '100\n'
assert likely_import(True, explicit=True) == 'True\n'
# this is kinda BS... you can't import a None
assert likely_import(None) == 'None\n'
assert likely_import(None, explicit=True) == 'None\n'
# other imported functions
def test_imported():
from math import sin
assert likely_import(sin) == 'from math import sin\n'
# interactively defined functions
def test_dynamic():
assert likely_import(add) == 'from %s import add\n' % __name__
# interactive lambdas
assert likely_import(squared) == 'from %s import squared\n' % __name__
# classes and class instances
def test_classes():
from io import BytesIO as StringIO
y = "from _io import BytesIO\n"
x = y if (IS_PYPY or sys.hexversion >= PY310b) else "from io import BytesIO\n"
s = StringIO()
assert likely_import(StringIO) == x
assert likely_import(s) == y
# interactively defined classes and class instances
assert likely_import(Foo) == 'from %s import Foo\n' % __name__
assert likely_import(_foo) == 'from %s import Foo\n' % __name__
# test getimportable
def test_importable():
assert getimportable(add) == 'from %s import add\n' % __name__
assert getimportable(squared) == 'from %s import squared\n' % __name__
assert getimportable(Foo) == 'from %s import Foo\n' % __name__
assert getimportable(Foo.bar) == 'from %s import bar\n' % __name__
assert getimportable(_foo.bar) == 'from %s import bar\n' % __name__
assert getimportable(None) == 'None\n'
assert getimportable(100) == '100\n'
assert getimportable(add, byname=False) == 'def add(x,y):\n return x+y\n'
assert getimportable(squared, byname=False) == 'squared = lambda x:x**2\n'
assert getimportable(None, byname=False) == 'None\n'
assert getimportable(Bar, byname=False) == 'class Bar:\n pass\n'
assert getimportable(Foo, byname=False) == 'class Foo(object):\n def bar(self, x):\n return x*x+x\n'
assert getimportable(Foo.bar, byname=False) == 'def bar(self, x):\n return x*x+x\n'
assert getimportable(Foo.bar, byname=True) == 'from %s import bar\n' % __name__
assert getimportable(Foo.bar, alias='memo', byname=True) == 'from %s import bar as memo\n' % __name__
assert getimportable(Foo, alias='memo', byname=True) == 'from %s import Foo as memo\n' % __name__
assert getimportable(squared, alias='memo', byname=True) == 'from %s import squared as memo\n' % __name__
assert getimportable(squared, alias='memo', byname=False) == 'memo = squared = lambda x:x**2\n'
assert getimportable(add, alias='memo', byname=False) == 'def add(x,y):\n return x+y\n\nmemo = add\n'
assert getimportable(None, alias='memo', byname=False) == 'memo = None\n'
assert getimportable(100, alias='memo', byname=False) == 'memo = 100\n'
assert getimportable(add, explicit=True) == 'from %s import add\n' % __name__
assert getimportable(squared, explicit=True) == 'from %s import squared\n' % __name__
assert getimportable(Foo, explicit=True) == 'from %s import Foo\n' % __name__
assert getimportable(Foo.bar, explicit=True) == 'from %s import bar\n' % __name__
assert getimportable(_foo.bar, explicit=True) == 'from %s import bar\n' % __name__
assert getimportable(None, explicit=True) == 'None\n'
assert getimportable(100, explicit=True) == '100\n'
def test_numpy():
try:
from numpy import array
x = array([1,2,3])
assert getimportable(x) == 'from numpy import array\narray([1, 2, 3])\n'
assert getimportable(array) == 'from %s import array\n' % array.__module__
assert getimportable(x, byname=False) == 'from numpy import array\narray([1, 2, 3])\n'
assert getimportable(array, byname=False) == 'from %s import array\n' % array.__module__
except ImportError: pass
#NOTE: if before likely_import(pow), will cause pow to throw AssertionError
def test_foo():
assert getimportable(_foo, byname=False).startswith("import dill\nclass Foo(object):\n def bar(self, x):\n return x*x+x\ndill.loads(")
if __name__ == '__main__':
test_getsource()
test_itself()
test_builtin()
test_imported()
test_dynamic()
test_classes()
test_importable()
test_numpy()
test_foo()