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#!/usr/bin/python
# Copyright 2011 Lars Wirzenius
#
# 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/>.
import cliapp
import glob
import logging
import os
import shutil
import sys
import tempfile
import ttystatus
import unittest
import cmdtestlib
class TestFailure(Exception):
def __init__(self, test, msg):
self.msg = 'FAIL: %s: %s' % (test.name, msg)
def __str__(self):
return self.msg
class CommandTester(cliapp.Application):
def add_settings(self):
self.settings.string(['command', 'c'],
'ignored for backwards compatibility')
self.settings.string_list(['test', 't'],
'run only TEST (can be given many times)',
metavar='TEST')
def process_args(self, dirnames):
self.setup_ttystatus()
td = self.load_tests(dirnames)
self.ts['tests'] = td.tests
errors = 0
self.setup_tempdir()
self.run_script('', td.setup_once)
for test in td.tests:
self.ts['test'] = test
self.run_script(test.name, td.setup)
for e in self.run_test(test):
logging.error(str(e))
self.ts.clear()
self.output.write('%s\n' % str(e))
errors += 1
self.run_script(test.name, td.teardown)
self.run_script('', td.teardown_once)
self.cleanup_tempdir()
ok = len(td.tests) - errors
self.ts.finish()
self.output.write('%d/%d tests OK, %d failures\n' %
(ok, len(td.tests), errors))
if errors:
sys.exit(1)
def setup_ttystatus(self):
self.ts = ttystatus.TerminalStatus(period=0.001)
self.ts.add(ttystatus.Literal('test '))
self.ts.add(ttystatus.Index('test', 'tests'))
def load_tests(self, dirnames):
td = cmdtestlib.TestDir()
for dirname in dirnames:
if self.settings['test']:
filenames = self.find_requested_tests(dirname)
td.scan(dirname, filenames)
else:
td.scan(dirname)
return td
def find_requested_tests(self, dirname):
filenames = []
for test in self.settings['test']:
matches = glob.glob(os.path.join(dirname, test + '.*'))
filenames += [os.path.basename(x) for x in matches]
return filenames
def setup_tempdir(self):
self.tempdir = tempfile.mkdtemp()
logging.info('Temporary directory %s' % self.tempdir)
self.datadir = os.path.join(self.tempdir, 'data')
os.mkdir(self.datadir)
def cleanup_tempdir(self):
logging.info('Removing temporary directory %s' % self.tempdir)
shutil.rmtree(self.tempdir)
def run_script(self, test_name, script_name):
if script_name:
self.runcmd([script_name], env=self.add_to_env(test_name))
def add_to_env(self, test_name):
env = dict(os.environ)
env['SRCDIR'] = os.getcwd()
env['DATADIR'] = self.datadir
env['TESTNAME'] = test_name
return env
def run_test(self, test):
logging.info('Test case: %s' % test.name)
self.run_script(test.name, test.setup)
if test.script:
argv = [test.script]
else:
raise cliapp.AppException('Must have a .script file for test')
stdout_name = test.path_prefix + '.stdout-actual'
stderr_name = test.path_prefix + '.stderr-actual'
with open(stdout_name, 'wb') as stdout:
with open(stderr_name, 'wb') as stderr:
if test.stdin:
stdin = open(test.stdin, 'rb')
else:
stdin = None
env = self.add_to_env(test.name)
exit, out, err = self.runcmd_unchecked(argv,
env=env,
stdin=stdin,
stdout=stdout,
stderr=stderr)
if stdin is not None:
stdin.close()
self.run_script(test.name, test.teardown)
errors = []
stdout_diff_name = test.path_prefix + '.stdout-diff'
stdout_diff = self.diff(test.stdout or '/dev/null', stdout_name,
stdout_diff_name)
if stdout_diff:
errors.append(TestFailure(test, 'stdout diff:\n%s' % stdout_diff))
stderr_diff_name = test.path_prefix + '.stderr-diff'
stderr_diff = self.diff(test.stderr or '/dev/null', stderr_name,
stderr_diff_name)
if stderr_diff:
errors.append(TestFailure(test, 'stderr diff:\n%s' % stderr_diff))
expected_exit = int(self.cat(test.exit or '/dev/null').strip() or '0')
if exit != expected_exit:
errors.append(TestFailure(test,
'got exit code %s, expected %s' %
(exit, expected_exit)))
if not errors:
os.remove(stdout_name)
os.remove(stderr_name)
os.remove(stdout_diff_name)
os.remove(stderr_diff_name)
return errors
def cat(self, filename):
if os.path.exists(filename):
with open(filename) as f:
return f.read()
else:
return ''
def lines(self, filename):
return self.cat(filename).splitlines()
def expand(self, strings):
variables = {
'datadir': self.datadir,
}
return [s % variables for s in strings]
def diff(self, expected_name, actual_name, diff_name):
exit, out, err = self.runcmd_unchecked(['diff', '-u',
expected_name, actual_name])
self.write_file(diff_name, out)
return out
def write_file(self, filename, content):
with open(filename, 'w') as f:
f.write(content)
if __name__ == '__main__':
CommandTester(version=cmdtestlib.__version__).run()
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