def test_stdlib_methods_support(self, stdlib_log_method):
"""
ReturnLogger implements methods of stdlib loggers.
"""
v = getattr(ReturnLogger(), stdlib_log_method)("hello")
assert "hello" == v
def test_return_logger(self):
"""
Return logger returns exactly what's sent in.
"""
obj = ["hello"]
assert obj is ReturnLogger().msg(obj)
def build_bl(logger=None, processors=None, context=None):
"""
Convenience function to build BoundLoggerBases with sane defaults.
"""
return BoundLoggerBase(
logger if logger is not None else ReturnLogger(),
processors if processors is not None else _CONFIG.default_processors,
context if context is not None else _CONFIG.default_context_class(),
)
def test_deepcopy(self):
"""
__getattr__ returns None for '__deepcopy__'
"""
b = BoundLogger(
ReturnLogger(),
_CONFIG.default_processors,
_CONFIG.default_context_class(),
)
assert b.__deepcopy__ is None
def test_pickle(self, proto):
"""
Can be pickled and unpickled.
Works only on Python 3: TypeError: can't pickle instancemethod objects
"""
b = BoundLogger(
ReturnLogger(),
_CONFIG.default_processors,
_CONFIG.default_context_class(),
).bind(x=1)
assert b.info("hi") == pickle.loads(pickle.dumps(b, proto)).info("hi")
def test_proxies_anything(self):
"""
Anything that isn't part of BoundLoggerBase gets proxied to the correct
wrapped logger methods.
"""
b = BoundLogger(
ReturnLogger(),
_CONFIG.default_processors,
_CONFIG.default_context_class(),
)
assert "log", "foo" == b.log("foo")
assert "gol", "bar" == b.gol("bar")
def test_caches(self):
"""
__getattr__() gets called only once per logger method.
"""
b = BoundLogger(
ReturnLogger(),
_CONFIG.default_processors,
_CONFIG.default_context_class(),
)
assert "msg" not in b.__dict__
b.msg("foo")
assert "msg" in b.__dict__
def logger():
"""
Returns a simple logger stub with a *msg* method that takes one argument
which gets returned.
"""
return ReturnLogger()