/usr/lib/python3/dist-packages/importmagic/symbols_test.py is in python3-importmagic 0.1.7-1.
This file is owned by root:root, with mode 0o644.
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from six import u
from importmagic.symbols import Scope, _symbol_series
def test_parser_symbol_in_global_function():
src = dedent('''
import posixpath
import os as thisos
class Class(object):
def foo(self):
print(self.bar)
def basename_no_ext(filename, default=1):
def inner():
print(basename)
basename, _ = os.path.splitext(os.path.basename(filename))
moo = 10
inner()
with open('foo') as fd:
print(fd.read())
try:
print('foo')
except Exception as e:
print(e)
basename_no_ext(sys.path)
for path in sys.path:
print(path)
sys.path[0] = 10
moo = lambda a: True
comp = [p for p in sys.path if p]
sys.path[10] = 2
posixpath.join(['a', 'b'])
''')
symbols, _ = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert symbols == set(['sys.path', 'os.path.splitext', 'os.path.basename'])
def test_deep_package_reference_with_function_call():
src = dedent('''
print(os.path.dirname('src/python'))
''')
symbols, _ = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert symbols == set(['os.path.dirname'])
def test_deep_package_reference_with_subscript():
src = dedent('''
print(sys.path[0])
''')
symbols, _ = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert symbols == set(['sys.path'])
def test_parser_class_methods_namespace_correctly():
src = dedent('''
class Class(object):
def __init__(self):
self.value = 1
get_value() # Should be unresolved
def get_value(self):
return self.value
def set_value(self, value):
self.value = value
setter = set_value # Should be resolved
''')
unresolved, _ = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert unresolved == set(['get_value'])
def test_path_from_node_function():
src = dedent('''
os.path.basename(waz).tolower()
''')
unresolved, _ = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert unresolved == set(['waz', 'os.path.basename'])
def test_symbol_from_assignment():
src = dedent('''
def f(n): sys.stderr = n
''')
unresolved, _ = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert unresolved == set(['sys.stderr'])
def test_path_from_node_subscript():
src = dedent('''
sys.path[0].tolower()
''')
unresolved, _ = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert unresolved == set(['sys.path'])
def test_symbol_series():
assert _symbol_series('os.path.basename') == ['os', 'os.path', 'os.path.basename']
def test_symbol_in_expression():
src = dedent('''
(db.Event.creator_id == db.Account.id) & (db.Account.user_id == bindparam('user_id'))
''')
unresolved, _ = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert unresolved == set(['db.Event.creator_id', 'db.Account.id', 'db.Account.user_id', 'bindparam'])
def test_symbol_from_nested_tuples():
src = dedent("""
a = (os, (os.path, sys))
""")
symbols, _ = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert symbols == set(['os', 'os.path', 'sys'])
def test_symbol_from_argument_defaults():
src = dedent("""
def f(a, b=os.path, c=os): pass
""")
symbols, _ = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert symbols == set(['os.path', 'os'])
def test_symbol_from_decorator():
src = dedent("""
@foo.bar(a=waz)
def bar(): pass
""")
symbols, _ = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert symbols == set(['foo.bar', 'waz'])
def test_referenced_symbols_from_decorated_function():
src = dedent("""
@foo.bar
def bar():
print(waz)
print(baz)
""")
symbols, _ = Scope.from_source(src).find_unresolved_and_unreferenced_symbols()
assert symbols == set(['foo.bar', 'waz', 'baz'])
def test_find_unresolved_and_unreferenced_symbols():
src = dedent("""
import os
import sys
import urllib2
from os.path import basename
def f(p):
def b():
f = 10
print(f)
return basename(p)
class A(object):
etc = os.walk('/etc')
def __init__(self):
print(sys.path, urllib.urlquote('blah'))
def exc_handler(self):
try:
raise SomeException(some_value)
except:
pass
else:
print(SOME_MSG)
def cond(self, *args, **kwds):
if cond:
pass
elif cond2:
print('foo')
while cond3:
print(kwds)
""").strip()
scope = Scope.from_source(src)
unresolved, unreferenced = scope.find_unresolved_and_unreferenced_symbols()
assert unresolved == set(['urllib.urlquote', 'SomeException', 'some_value',
'SOME_MSG', 'cond', 'cond2', 'cond3'])
assert unreferenced == set(['A', 'urllib2', 'f'])
def test_accepts_unicode_strings():
src = dedent(u("""
# coding: utf-8
foo
""")).strip()
scope = Scope.from_source(src)
unresolved, unreferenced = scope.find_unresolved_and_unreferenced_symbols()
assert unresolved == set(['foo'])
class TestSymbolCollection(object):
def _collect(self, src, include_unreferenced=False):
scope = Scope.from_source(src)
unresolved, unreferenced = scope.find_unresolved_and_unreferenced_symbols()
if include_unreferenced:
return unresolved, unreferenced
return unresolved
def test_attribute(self):
assert self._collect('foo.bar') == set(['foo.bar'])
def test_tuple(self):
assert self._collect('(foo, bar, (waz, foo))') == set(['foo', 'bar', 'foo', 'waz'])
def test_chained_calls(self):
assert self._collect('foo(bar).waz(baz)') == set(['foo', 'bar', 'baz'])
def test_chained_subscript(self):
assert self._collect('foo[bar].waz(baz).asdf()') == set(['foo', 'bar', 'baz'])
def test_attribute_then_call(self):
assert self._collect('foo.bar(waz)') == set(['foo.bar', 'waz'])
def test_deep_attributes(self):
assert self._collect('foo.bar.waz') == set(['foo.bar.waz'])
def test_generator(self):
assert self._collect('(i for b in c)') == set(['i', 'c'])
def test_comprehension(self):
assert self._collect('[i for b in c]') == set(['i', 'c'])
def test_class_attribute(self):
assert self._collect('class A:\n a = b') == set(['b'])
def test_with(self):
assert self._collect('with a: pass') == set(['a'])
def test_with_variables(self):
assert self._collect('def a():\n with a as b: pass', include_unreferenced=True) == (set(), set())
def test_assignment_in_for(self):
assert self._collect('def a():\n for i in [1, 2]: b = 10', include_unreferenced=True) == (set(), set(['a']))
def test_assignment_to_subscript(self):
assert self._collect('a[10] = 10', include_unreferenced=True) == (set(['a']), set())
def test_attribute_calls(self):
assert self._collect('a().b().c()') == set(['a'])
def test_attribute_calls_with_args(self):
assert self._collect('a(d).b.h(e).c(f.g)') == set(['a', 'd', 'e', 'f.g'])
def test_subscript_with_attrs(self):
assert self._collect('a[h].b.c.d[e.f.g]()') == set(['a', 'h', 'e.f.g'])
def test_multiple_names(self):
assert self._collect('a == b') == set(['a', 'b'])
def test_multiple_attributes(self):
assert self._collect('a.c == b.d') == set(['a.c', 'b.d'])
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