def test_safe_representation():
class TestObject(object):
"""A test object that has neither __str__ nor __repr__."""
def __str__(self):
return NotImplementedError()
def __repr__(self):
return NotImplementedError()
assert_eq("2", qcore.safe_str(2))
assert_eq("2....", qcore.safe_str("2.192842", max_length=5))
assert_is_substring("<n/a: str(...) raised", qcore.safe_str(TestObject()))
assert_eq("'a'", qcore.safe_repr("a"))
assert_eq("'...", qcore.safe_repr("2.192842", max_length=4))
assert_eq("<n/a: repr...", qcore.safe_repr(TestObject(), max_length=13))
def safe_text(obj):
"""Safely turns an object into a textual representation.
Calls str(), then on Python 2 decodes the result.
"""
result = qcore.safe_str(obj)
if isinstance(result, bytes):
try:
result = result.decode("utf-8")
except Exception as e:
result = "<n/a: .decode() raised %r>" % e
return result
def str(source, truncate=True):
return qcore.safe_str(source,
options.DEBUG_STR_REPR_MAX_LENGTH if truncate else 0)