~launchpad-pqm/launchpad/devel

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#!/usr/bin/env python2.3
# Copyright 2004 Canonical Ltd.  All rights reserved.

"""Tests that get run automatically on a merge."""

import sys, re
import os, os.path
import popen2
import tabnanny
import checkarchtag
from StringIO import StringIO
from threading import Thread
import psycopg

class NonBlockingReader(Thread):

    result = None

    def __init__(self,file):
        Thread.__init__(self)
        self.file = file

    def run(self):
        self.result = self.file.read()

    def read(self):
        if self.result is None:
            raise RuntimeError("read() called before run()")
        return self.result

    def readlines(self):
        if self.result is None:
            raise RuntimeError("readlines() called before run()")
        return self.result.splitlines()


def main():
    """Call test.py 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__))

    if not checkarchtag.is_tree_good():
        return 1

    # Tabnanny
    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

    # Ensure ++resource++ URL's are all absolute - this ensures they
    # are cache friendly
    results = os.popen(
        "find lib/canonical -type f | xargs grep '[^/]++resource++'"
        ).readlines()
    if results:
        print '---- non-absolute ++resource++ URLs found ----'
        print ''.join(results)
        print '---- end non-absolute ++resource++ URLs found ----'
        return 1

    # Drop the template database if it exists - the Makefile does this
    # too, but we can explicity check for errors here
    con = psycopg.connect('dbname=template1')
    cur = con.cursor()
    try:
        cur.execute('end transaction; drop database launchpad_ftest_template')
    except psycopg.ProgrammingError, x:
        if 'does not exist' not in str(x):
            raise
    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 = psycopg.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'"
        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 != 'UNICODE':
        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')):
        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.'
    cmd = 'cd %s; %s test.py %s < /dev/null' % (
            here, sys.executable, ' '.join(sys.argv[1:])
            )
    print cmd
    proc = popen2.Popen3(cmd, True)
    stdin, out, err = proc.tochild, proc.fromchild, proc.childerr

    # Use non-blocking reader threads to cope with differing expectations
    # from the proess of when to consume data from out and error.
    errthread = NonBlockingReader(err)
    outthread = NonBlockingReader(out)
    errthread.start()
    outthread.start()
    errthread.join()
    outthread.join()
    exitcode = proc.wait()
    test_ok = (os.WIFEXITED(exitcode) and os.WEXITSTATUS(exitcode) == 0)

    errlines = errthread.readlines()
    dataout = outthread.read()

    if test_ok:
        for line in errlines:
            if re.match('^Ran\s\d+\stest(s)?\sin\s[\d\.]+s$', line):
                print line
        return 0
    else:
        print '---- test stdout ----'
        print dataout
        print '---- end test stdout ----'

        print '---- test stderr ----'
        print '\n'.join(errlines)
        print '---- end test stderr ----'
        return 1

if __name__ == '__main__':
    sys.exit(main())