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""" Tests some error handling routines
"""
from rpython.translator.translator import TranslationContext
from rpython.annotator.model import UnionError
import py
def compile_function(function, annotation=[]):
t = TranslationContext()
t.buildannotator().build_types(function, annotation)
class AAA(object):
pass
def test_someobject():
def someobject_degeneration(n):
if n == 3:
a = "a"
else:
a = 9
return a
py.test.raises(UnionError, compile_function, someobject_degeneration, [int])
def test_someobject2():
def someobject_deg(n):
if n == 3:
a = "a"
else:
return AAA()
return a
py.test.raises(UnionError, compile_function, someobject_deg, [int])
def test_eval_someobject():
exec("def f(n):\n if n == 2:\n return 'a'\n else:\n return 3")
py.test.raises(UnionError, compile_function, f, [int])
def test_someobject_from_call():
def one(x):
return str(x)
def two(x):
return int(x)
def fn(n):
if n:
to_call = one
else:
to_call = two
return to_call(n)
try:
compile_function(fn, [int])
except UnionError as e:
assert 'function one' in str(e)
assert 'function two' in str(e)
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