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"""Test the exec statement functionality.
New for PyPy - Could be incorporated into CPython regression tests.
"""
from rpython.tool.udir import udir
class AppTestExecStmt:
def test_string(self):
g = {}
l = {}
exec("a = 3", g, l)
assert l['a'] == 3
def test_localfill(self):
g = {}
exec("a = 3", g)
assert g['a'] == 3
def test_builtinsupply(self):
g = {}
exec("pass", g)
assert '__builtins__' in g
def test_invalidglobal(self):
def f():
exec('pass', 1)
raises(TypeError, f)
def test_invalidlocal(self):
def f():
exec('pass', {}, 2)
raises(TypeError, f)
def test_codeobject(self):
co = compile("a = 3", '<string>', 'exec')
g = {}
l = {}
exec(co, g, l)
assert l['a'] == 3
def test_implicit(self):
a = 4
exec("a = 3")
assert a == 3
def test_tuplelocals(self):
g = {}
l = {}
exec("a = 3", g, l)
assert l['a'] == 3
def test_tupleglobals(self):
g = {}
exec("a = 3", g)
assert g['a'] == 3
def test_exceptionfallthrough(self):
def f():
exec('raise TypeError', {})
raises(TypeError, f)
def test_global_stmt(self):
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(self):
exec("""if 1:
def f():
exec('a=3')
return a
raises(NameError, f)\n""")
def test_specialcase_free_load2(self):
exec("""if 1:
def f(a):
exec('a=3')
return a
x = f(4)\n""")
assert eval("x") == 3
def test_nested_names_are_not_confused(self):
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(self):
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(self):
d = {}
exec("x=5 ", d)
assert d['x'] == 5
def test_synerr(self):
def x():
exec("1 2")
raises(SyntaxError, x)
def test_mapping_as_locals(self):
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'}
try:
exec("y=n", m)
except TypeError:
pass
else:
assert False, 'Expected TypeError'
raises(TypeError, eval, "m", m)
def test_filename(self):
try:
exec("'unmatched_quote")
except SyntaxError as msg:
assert msg.filename == '<string>'
try:
eval("'unmatched_quote")
except SyntaxError as msg:
assert msg.filename == '<string>'
def test_exec_and_name_lookups(self):
ns = {}
exec("""def f():
exec('x=1', globals())
return x\n""", ns)
f = ns['f']
try:
res = f()
except NameError as e: # keep py.test from exploding confused
raise e
assert res == 1
def test_exec_unicode(self):
# '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(self):
u = "'%s'" % chr(0x1234)
v = eval(u)
assert v == chr(0x1234)
def test_compile_bytes(self):
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(self):
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'])
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