test_ok1/py/misc/testing/test_warn.py

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import py
from py.__.misc.warn import WarningBus
mypath = py.magic.autopath()
class TestWarningBus:
def setup_method(self, method):
self.wb = WarningBus()
self.warnings = []
self.wb.subscribe(self.warnings.append)
def test_basic(self):
self.wb.warn("hello")
assert len(self.warnings) == 1
self.wb.unsubscribe(self.warnings.append)
self.wb.warn("this")
assert len(self.warnings) == 1
w = self.warnings[0]
def test_location(self):
self.wb.warn("again")
warning = self.warnings[0]
lno = self.test_location.im_func.func_code.co_firstlineno + 1
assert warning.lineno == lno
assert warning.path == mypath
locstr = "%s:%d: " %(mypath, lno+1,)
assert repr(warning).startswith(locstr)
assert str(warning) == warning.msg
def test_stacklevel(self):
l = []
self.wb.subscribe(l.append)
def f():
self.wb.warn("x", stacklevel=2)
# 5
# 6
f()
lno = self.test_stacklevel.im_func.func_code.co_firstlineno + 7
warning = l[0]
assert warning.lineno == lno
def test_forwarding_to_warnings_module(self):
self.wb._setforwarding()
py.test.deprecated_call(self.wb.warn, "x")
def test_apiwarn(self):
self.wb.apiwarn("3.0", "xxx")
warning = self.warnings[0]
assert warning.msg == "xxx (since version 3.0)"
def test_APIWARN():
from py.__.misc.warn import APIWARN
wb = APIWARN.im_self
assert wb._forward in wb._eventbus._subscribers