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#!/usr/bin/python2.5
#
# Copyright 2009 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
"""Tests that get run automatically on a merge."""
import _pythonpath
import sys, time
import os, errno
import tabnanny
from StringIO import StringIO
import psycopg2
from subprocess import Popen, PIPE, STDOUT
from signal import SIGKILL, SIGTERM
from select import select
# The TIMEOUT setting (expressed in seconds) affects how long a test will run
# before it is deemed to be hung, and then appropriately terminated.
# It's principal use is preventing a PQM job from hanging indefinitely and
# backing up the queue.
# e.g. Usage: TIMEOUT = 60 * 15
# This will set the timeout to 15 minutes.
TIMEOUT = 60 * 15
def main():
"""Call bin/test with whatever arguments this script was run with.
If the tests ran ok (last line of stderr is 'OK<return>') then suppress
output and exit(0).
Otherwise, print output and exit(1).
"""
here = os.path.dirname(os.path.realpath(__file__))
# Tabnanny
# NB. If tabnanny raises an exception, run
# python /usr/lib/python2.5/tabnanny.py -vv lib/canonical
# for more detailed output.
org_stdout = sys.stdout
sys.stdout = StringIO()
tabnanny.check(os.path.join(here, 'lib', 'canonical'))
tabnanny_results = sys.stdout.getvalue()
sys.stdout = org_stdout
if len(tabnanny_results) > 0:
print '---- tabnanny bitching ----'
print tabnanny_results
print '---- end tabnanny bitching ----'
return 1
# Sanity check PostgreSQL version. No point in trying to create a test
# database when PostgreSQL is too old.
con = psycopg2.connect('dbname=template1')
cur = con.cursor()
cur.execute('show server_version')
server_version = cur.fetchone()[0]
try:
numeric_server_version = tuple(map(int, server_version.split('.')))
except ValueError:
# Skip this check if the version number is more complicated than
# we expected.
pass
else:
if numeric_server_version < (8, 0):
print 'Your PostgreSQL version is too old. You need 8.x.x'
print 'You have %s' % server_version
return 1
# Drop the template database if it exists - the Makefile does this
# too, but we can explicity check for errors here
con = psycopg2.connect('dbname=template1')
con.set_isolation_level(0)
cur = con.cursor()
try:
cur.execute('drop database launchpad_ftest_template')
except psycopg2.ProgrammingError, x:
if 'does not exist' not in str(x):
raise
cur.execute("""
select count(*) from pg_stat_activity
where datname in ('launchpad_dev',
'launchpad_ftest_template', 'launchpad_ftest')
""")
existing_connections = cur.fetchone()[0]
if existing_connections > 0:
print 'Cannot rebuild database. There are %d open connections.' % (
existing_connections,
)
return 1
cur.close()
con.close()
# Build the template database. Tests duplicate this.
here = os.path.dirname(os.path.realpath(__file__))
schema_dir = os.path.join(here, 'database', 'schema')
if os.system('cd %s; make test PYTHON=%s > /dev/null' % (
schema_dir, sys.executable)) != 0:
print 'Failed to create database or load sampledata.'
return 1
# Sanity check the database. No point running tests if the
# bedrock is crumbling.
con = psycopg2.connect('dbname=launchpad_ftest_template')
cur = con.cursor()
cur.execute('show search_path')
search_path = cur.fetchone()[0]
if search_path != '$user,public,ts2':
print 'Search path incorrect.'
print 'Add the following line to /etc/postgresql/postgresql.conf:'
print " search_path = '$user,public,ts2'"
print "and tell postgresql to reload its configuration file."
return 1
cur.execute("""
select pg_encoding_to_char(encoding) as encoding from pg_database
where datname='launchpad_ftest_template'
""")
enc = cur.fetchone()[0]
if enc not in ('UNICODE', 'UTF8'):
print 'Database encoding incorrectly set'
return 1
cur.execute(r"""
SELECT setting FROM pg_settings
WHERE context='internal' AND name='lc_ctype'
""")
loc = cur.fetchone()[0]
#if not (loc.startswith('en_') or loc in ('C', 'en')):
if loc != 'C':
print 'Database locale incorrectly set. Need to rerun initdb.'
return 1
# Explicity close our connections - things will fail if we leave open
# connections.
cur.close()
del cur
con.close()
del con
print 'Running tests.'
os.chdir(here)
cmd = [
'xvfb-run',
'-s',
"'-screen 0 1024x768x24'",
os.path.join(here, 'bin', 'test')] + sys.argv[1:]
command_line = ' '.join(cmd)
print command_line
# Run the test suite and return the error code
#return call(cmd)
proc = Popen(
command_line, stdin=PIPE, stdout=PIPE, stderr=STDOUT, shell=True)
proc.stdin.close()
# Do proc.communicate(), but timeout if there's no activity on stdout or
# stderr for too long.
open_readers = set([proc.stdout])
while open_readers:
rlist, wlist, xlist = select(open_readers, [], [], TIMEOUT)
if len(rlist) == 0:
if proc.poll() is not None:
break
print ("\nA test appears to be hung. There has been no output for"
" %d seconds. Sending SIGTERM." % TIMEOUT)
killem(proc.pid, SIGTERM)
time.sleep(3)
if proc.poll() is not None:
print ("\nSIGTERM did not work. Sending SIGKILL.")
killem(proc.pid, SIGKILL)
# Drain the subprocess's stdout and stderr.
sys.stdout.write(proc.stdout.read())
break
if proc.stdout in rlist:
chunk = os.read(proc.stdout.fileno(), 1024)
sys.stdout.write(chunk)
if chunk == "":
open_readers.remove(proc.stdout)
rv = proc.wait()
if rv == 0:
print '\nSuccessfully ran all tests.'
else:
print '\nTests failed (exit code %d)' % rv
return rv
def killem(pid, signal):
"""Kill the process group leader identified by pid and other group members
Note that bin/test sets its process to a process group leader.
"""
try:
os.killpg(os.getpgid(pid), signal)
except OSError, x:
if x.errno == errno.ESRCH:
pass
else:
raise
if __name__ == '__main__':
sys.exit(main())
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