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"""nose2 test infrastructure."""
import os
import re
import sys
import doctest
import importlib
from nose2.events import Plugin
DOT = '.'
FLAGS = doctest.ELLIPSIS | doctest.NORMALIZE_WHITESPACE | doctest.REPORT_NDIFF
def as_object(path):
if path is None:
return None
# mod.ule.object -> import(mod.ule); mod.ule.object
module_name, dot, object_name = path.rpartition('.')
if dot != '.' or len(object_name) == 0:
return None
module = importlib.import_module(module_name)
return getattr(module, object_name, None)
class NosePlugin(Plugin):
configSection = 'flufl.testing'
def __init__(self):
super().__init__()
self.patterns = []
self.stderr = False
def set_stderr(ignore): # noqa: E306
self.stderr = True
self.addArgument(self.patterns, 'P', 'pattern',
'Add a test matching pattern')
self.addFlag(set_stderr, 'E', 'stderr',
'Enable stderr logging to sub-runners')
# Get the topdir out of the plugin configuration file.
self.package = self.config.as_str('package')
if self.package is None:
raise RuntimeError('flufl.nose2 plugin missing "package" setting')
def startTestRun(self, event):
callback = as_object(self.config.get('start_run'))
if callback is not None:
callback(self)
def getTestCaseNames(self, event):
if len(self.patterns) == 0:
# No filter patterns, so everything should be tested.
return
# Does the pattern match the fully qualified class name?
for pattern in self.patterns:
full_class_name = '{}.{}'.format(
event.testCase.__module__, event.testCase.__name__)
if re.search(pattern, full_class_name):
# Don't suppress this test class.
return
names = filter(event.isTestMethod, dir(event.testCase))
for name in names:
full_test_name = '{}.{}.{}'.format(
event.testCase.__module__,
event.testCase.__name__,
name)
for pattern in self.patterns:
if re.search(pattern, full_test_name):
break
else:
event.excludedNames.append(name)
def handleFile(self, event):
package = importlib.import_module(self.package)
path = event.path[len(os.path.dirname(package.__file__))+1:]
if len(self.patterns) > 0:
for pattern in self.patterns:
if re.search(pattern, path):
break
else:
# Skip this doctest.
return
base, ext = os.path.splitext(path)
if ext != '.rst':
return
# Look to see if the package defines a test layer, otherwise use the
# default layer. First turn the file system path into a dotted Python
# module path.
parent = os.path.dirname(path)
dotted = '{}.{}'.format(
self.package, DOT.join(parent.split(os.path.sep)))
layer = None
default_layer = as_object(self.config.get('default_layer'))
try:
module = importlib.import_module(dotted)
except ImportError:
layer = default_layer
else:
layer = getattr(module, 'layer', default_layer)
setup = as_object(self.config.get('setup'))
teardown = as_object(self.config.get('teardown'))
test = doctest.DocFileTest(
path, package=self.package,
optionflags=FLAGS,
setUp=setup,
tearDown=teardown)
test.layer = layer
# Suppress the extra "Doctest: ..." line.
test.shortDescription = lambda: None
event.extraTests.append(test)
def startTest(self, event):
if self.config.as_bool('trace', False):
print('vvvvv', event.test, file=sys.stderr)
def stopTest(self, event):
if self.config.as_bool('trace', False):
print('^^^^^', event.test, file=sys.stderr)
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