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# -*- coding: utf-8 -*-
# <Lettuce - Behaviour Driven Development for python>
# Copyright (C) <2010-2012> Gabriel Falcão <gabriel@nacaolivre.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
__version__ = version = '0.2.23'
release = 'kryptonite'
import os
import sys
import traceback
try:
from imp import reload
except ImportError:
# python 2.5 fallback
pass
import random
from lettuce.core import Feature, TotalResult
from lettuce.terrain import after
from lettuce.terrain import before
from lettuce.terrain import world
from lettuce.decorators import step, steps
from lettuce.registry import call_hook
from lettuce.registry import STEP_REGISTRY
from lettuce.registry import CALLBACK_REGISTRY
from lettuce.exceptions import StepLoadingError, LettuceRunnerError
from lettuce.plugins import (
xunit_output,
subunit_output,
autopdb,
smtp_mail_queue,
jsonreport_output,
)
from lettuce import fs
from lettuce import exceptions
try:
from colorama import init as ms_windows_workaround
ms_windows_workaround()
except ImportError:
pass
__all__ = [
'after',
'before',
'step',
'steps',
'world',
'STEP_REGISTRY',
'CALLBACK_REGISTRY',
'call_hook',
]
try:
terrain = fs.FileSystem._import("terrain")
reload(terrain)
except Exception as e:
if not "No module named terrain" in str(e):
string = 'Lettuce has tried to load the conventional environment ' \
'module "terrain"\nbut it has errors, check its contents and ' \
'try to run lettuce again.\n\nOriginal traceback below:\n\n'
sys.stderr.write(string)
sys.stderr.write(exceptions.traceback.format_exc(e))
raise LettuceRunnerError(string)
class Runner(object):
""" Main lettuce's test runner
Takes a base path as parameter (string), so that it can look for
features and step definitions on there.
"""
def __init__(self, base_path, scenarios=None,
verbosity=0, no_color=False, random=False,
enable_xunit=False, xunit_filename=None,
enable_subunit=False, subunit_filename=None,
enable_jsonreport=False, jsonreport_filename=None,
tags=None, failfast=False, auto_pdb=False,
smtp_queue=None, root_dir=None):
""" lettuce.Runner will try to find a terrain.py file and
import it from within `base_path`
"""
self.tags = tags
self.single_feature = None
if os.path.isfile(base_path) and os.path.exists(base_path):
self.single_feature = base_path
base_path = os.path.dirname(base_path)
sys.path.insert(0, base_path)
self.loader = fs.FeatureLoader(base_path, root_dir)
self.verbosity = verbosity
self.scenarios = scenarios and map(int, scenarios.split(",")) or None
self.failfast = failfast
if auto_pdb:
autopdb.enable(self)
sys.path.remove(base_path)
if verbosity is 0:
from lettuce.plugins import non_verbose as output
elif verbosity is 1:
from lettuce.plugins import dots as output
elif verbosity is 2:
from lettuce.plugins import scenario_names as output
elif verbosity is 3:
if no_color:
from lettuce.plugins import shell_output as output
else:
from lettuce.plugins import colored_shell_output as output
self.random = random
if enable_xunit:
xunit_output.enable(filename=xunit_filename)
if smtp_queue:
smtp_mail_queue.enable()
if enable_subunit:
subunit_output.enable(filename=subunit_filename)
if enable_jsonreport:
jsonreport_output.enable(filename=jsonreport_filename)
reload(output)
self.output = output
def run(self):
""" Find and load step definitions, and them find and load
features under `base_path` specified on constructor
"""
results = []
if self.single_feature:
features_files = [self.single_feature]
else:
features_files = self.loader.find_feature_files()
if self.random:
random.shuffle(features_files)
if not features_files:
self.output.print_no_features_found(self.loader.base_dir)
return
# only load steps if we've located some features.
# this prevents stupid bugs when loading django modules
# that we don't even want to test.
try:
self.loader.find_and_load_step_definitions()
except StepLoadingError as e:
print "Error loading step definitions:\n", e
return
call_hook('before', 'all')
failed = False
try:
for filename in features_files:
feature = Feature.from_file(filename)
results.append(
feature.run(self.scenarios,
tags=self.tags,
random=self.random,
failfast=self.failfast))
except exceptions.LettuceSyntaxError as e:
sys.stderr.write(e.msg)
failed = True
except exceptions.NoDefinitionFound, e:
sys.stderr.write(e.msg)
failed = True
except:
if not self.failfast:
e = sys.exc_info()[1]
print "Died with %s" % str(e)
traceback.print_exc()
else:
print
print ("Lettuce aborted running any more tests "
"because was called with the `--failfast` option")
failed = True
finally:
total = TotalResult(results)
total.output_format()
call_hook('after', 'all', total)
if failed:
raise LettuceRunnerError("Test failed.")
return total