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|
"""Test the exec statement functionality.
New for PyPy - Could be incorporated into CPython regression tests.
"""
import pytest
def test_string():
g = {}
l = {}
exec("a = 3", g, l)
assert l['a'] == 3
def test_localfill():
g = {}
exec("a = 3", g)
assert g['a'] == 3
def test_builtinsupply():
g = {}
exec("pass", g)
assert '__builtins__' in g
def test_invalidglobal():
with pytest.raises(TypeError):
exec('pass', 1)
def test_invalidlocal():
with pytest.raises(TypeError):
exec('pass', {}, 2)
def test_codeobject():
co = compile("a = 3", '<string>', 'exec')
g = {}
l = {}
exec(co, g, l)
assert l['a'] == 3
def test_implicit():
a = 4
exec("a = 3")
assert a == 4
def test_tuplelocals():
g = {}
l = {}
exec("a = 3", g, l)
assert l['a'] == 3
def test_tupleglobals():
g = {}
exec("a = 3", g)
assert g['a'] == 3
def test_exceptionfallthrough():
with pytest.raises(TypeError):
exec('raise TypeError', {})
def test_global_stmt():
g = {}
l = {}
co = compile("global a; a=5", '', 'exec')
#import dis
#dis.dis(co)
exec(co, g, l)
assert l == {}
assert g['a'] == 5
def test_specialcase_free_load():
def f():
exec('a=3')
return a
with raises(NameError):
f()
def test_specialcase_free_load2():
exec("""if 1:
def f(a):
exec('a=3')
return a
x = f(4)\n""")
assert eval("x") == 4
def test_nested_names_are_not_confused():
def get_nested_class():
method_and_var = "var"
class Test(object):
def method_and_var(self):
return "method"
def test(self):
return method_and_var
def actual_global(self):
return str("global")
def str(self):
return str(self)
return Test()
t = get_nested_class()
assert t.actual_global() == "global"
assert t.test() == 'var'
assert t.method_and_var() == 'method'
def test_exec_load_name():
d = {'x': 2}
exec("""if 1:
def f():
save = x
exec("x=3")
return x,save
\n""", d)
res = d['f']()
assert res == (2, 2)
def test_space_bug():
d = {}
exec("x=5 ", d)
assert d['x'] == 5
def test_synerr():
with pytest.raises(SyntaxError):
exec("1 2")
def test_mapping_as_locals():
class M(object):
def __getitem__(self, key):
return key
def __setitem__(self, key, value):
self.result[key] = value
def setdefault(self, key, value):
assert key == '__builtins__'
m = M()
m.result = {}
exec("x=m", {}, m)
assert m.result == {'x': 'm'}
with raises(TypeError):
exec("y=n", m)
with raises(TypeError):
eval("m", m)
def test_filename():
with pytest.raises(SyntaxError) as excinfo:
exec("'unmatched_quote")
assert excinfo.value.filename == '<string>'
with pytest.raises(SyntaxError) as excinfo:
eval("'unmatched_quote")
assert excinfo.value.filename == '<string>'
def test_exec_and_name_lookups():
ns = {}
exec("""def f():
exec('x=1', globals())
return x\n""", ns)
f = ns['f']
assert f() == 1
def test_exec_unicode():
# 's' is a bytes string
s = b"x = '\xd0\xb9\xd1\x86\xd1\x83\xd0\xba\xd0\xb5\xd0\xbd'"
# 'u' is a unicode
u = s.decode('utf-8')
ns = {}
exec(u, ns)
x = ns['x']
assert len(x) == 6
assert ord(x[0]) == 0x0439
assert ord(x[1]) == 0x0446
assert ord(x[2]) == 0x0443
assert ord(x[3]) == 0x043a
assert ord(x[4]) == 0x0435
assert ord(x[5]) == 0x043d
def test_eval_unicode():
u = "'%s'" % chr(0x1234)
v = eval(u)
assert v == chr(0x1234)
def test_compile_bytes():
s = b"x = '\xd0\xb9\xd1\x86\xd1\x83\xd0\xba\xd0\xb5\xd0\xbd'"
c = compile(s, '<input>', 'exec')
ns = {}
exec(c, ns)
x = ns['x']
assert len(x) == 6
assert ord(x[0]) == 0x0439
def test_issue3297():
c = compile("a, b = '\U0001010F', '\\U0001010F'", "dummy", "exec")
d = {}
exec(c, d)
assert d['a'] == d['b']
assert len(d['a']) == len(d['b'])
assert ascii(d['a']) == ascii(d['b'])
def test_exec_nonlocal():
x = 0
def set_x(value):
nonlocal x
x = value
set_x(1)
assert x == 1
exec('set_x(2)')
assert x == 2
|
