path: root/runtest.py

#!/usr/bin/env python
#
# __COPYRIGHT__
#
# runtest.py - wrapper script for running SCons tests
#
# SCons test suite consists of:
#
#  - unit tests        - included in *Tests.py files from src/ dir
#  - end-to-end tests  - these are *.py files in test/ directory that
#                        require custom SCons framework from QMTest/
#
# This script adds src/ and QMTest/ directories to PYTHONPATH,
# performs test discovery and processes them according to options.
#
# With -p (--package) option, script tests specified package from
# build directory and sets PYTHONPATH to reference modules unpacked
# during build process for testing purposes (build/test-*).
#
#       -a              Run all tests found under the current directory.
#                       It is also possible to specify a list of
#                       subdirectories to search.
#
#       -d              Debug.  Runs the script under the Python
#                       debugger (pdb.py) so you don't have to
#                       muck with PYTHONPATH yourself.
#
#       -e              Starts the script in external mode, for
#                       testing separate Tools and packages.
#
#       -f file         Only execute the tests listed in the specified
#                       file.
#
#       -k              Suppress printing of count and percent progress for
#                       the single tests.
#
#       -l              List available tests and exit.
#
#       -n              No execute, just print command lines.
#
#       -o file         Save screen output to the specified log file.
#
#       -P Python       Use the specified Python interpreter.
#
#       -p package      Test against the specified package.
#
#       --passed        In the final summary, also report which tests
#                       passed.  The default is to only report tests
#                       which failed or returned NO RESULT.
#
#       -q              Quiet.  By default, runtest.py prints the
#                       command line it will execute before
#                       executing it.  This suppresses that print.
#
#       --quit-on-failure Quit on any test failure
#
#       -s              Short progress.  Prints only the command line
#                       and a percentage value, based on the total and
#                       current number of tests.
#                       All stdout and stderr messages get suppressed (this
#                       does only work with subprocess though)!
#
#       -t              Print the execution time of each test.
#
#       -X              The scons "script" is an executable; don't
#                       feed it to Python.
#
#       -x scons        The scons script to use for tests.
#
#       --xml file      Save test results to the specified file in an
#                       SCons-specific XML format.
#                       This is (will be) used for reporting results back
#                       to a central SCons test monitoring infrastructure.
#
# (Note:  There used to be a -v option that specified the SCons
# version to be tested, when we were installing in a version-specific
# library directory.  If we ever resurrect that as the default, then
# you can find the appropriate code in the 0.04 version of this script,
# rather than reinventing that wheel.)
from __future__ import print_function


import getopt
import glob
import os
import re
import stat
import sys
import time

try:
    import threading
    try:                        # python3
        from queue import Queue
    except ImportError as e:    # python2
        from Queue import Queue
    threading_ok = True
except ImportError:
    print("Can't import threading or queue")
    threading_ok = False

cwd = os.getcwd()

baseline = 0
builddir = os.path.join(cwd, 'build')
external = 0
debug = ''
execute_tests = 1
jobs = 1
list_only = None
printcommand = 1
package = None
print_passed_summary = None
scons = None
scons_exec = None
testlistfile = None
version = ''
print_times = None
python = None
sp = []
print_progress = 1
suppress_stdout = False
suppress_stderr = False
allow_pipe_files = True
quit_on_failure = False

usagestr = """\
Usage: runtest.py [OPTIONS] [TEST ...]
       runtest.py -h|--help
"""
helpstr = usagestr + """\
Options:
  -a --all                    Run all tests.
  -b --baseline BASE          Run test scripts against baseline BASE.
     --builddir DIR           Directory in which packages were built.
  -d --debug                  Run test scripts under the Python debugger.
  -e --external               Run the script in external mode (for testing separate Tools)
  -f --file FILE              Run tests in specified FILE.
  -k --no-progress            Suppress count and percent progress messages.
  -l --list                   List available tests and exit.
  -n --no-exec                No execute, just print command lines.
     --nopipefiles            Doesn't use the "file pipe" workaround for subprocess.Popen()
                              for starting tests. WARNING: Only use this when too much file
                              traffic is giving you trouble AND you can be sure that none of
                              your tests create output that exceed 65K chars! You might
                              run into some deadlocks else.
  -o --output FILE            Save the output from a test run to the log file.
  -P PYTHON                   Use the specified Python interpreter.
  -p --package PACKAGE        Test against the specified PACKAGE:
                                deb           Debian
                                local-tar-gz  .tar.gz standalone package
                                local-zip     .zip standalone package
                                rpm           Red Hat
                                src-tar-gz    .tar.gz source package
                                src-zip       .zip source package
                                tar-gz        .tar.gz distribution
                                zip           .zip distribution
     --passed                 Summarize which tests passed.
  -q --quiet                  Don't print the test being executed.
     --quit-on-failure        Quit on any test failure
     --runner CLASS           Alternative test runner class for unit tests
  -s --short-progress         Short progress, prints only the command line
                              and a percentage value, based on the total and
                              current number of tests.
  -t --time                   Print test execution time.
  -v VERSION                  Specify the SCons version.
     --verbose=LEVEL          Set verbose level: 1 = print executed commands,
                                2 = print commands and non-zero output,
                                3 = print commands and all output.
  -X                          Test script is executable, don't feed to Python.
  -x --exec SCRIPT            Test SCRIPT.
     --xml file               Save results to file in SCons XML format.

Environment Variables:

  PRESERVE, PRESERVE_{PASS,FAIL,NO_RESULT}: preserve test subdirs
  TESTCMD_VERBOSE: turn on verbosity in TestCommand\
"""


# "Pass-through" option parsing -- an OptionParser that ignores
# unknown options and lets them pile up in the leftover argument
# list.  Useful to gradually port getopt to optparse.

from optparse import OptionParser, BadOptionError

class PassThroughOptionParser(OptionParser):
    def _process_long_opt(self, rargs, values):
        try:
            OptionParser._process_long_opt(self, rargs, values)
        except BadOptionError as err:
            self.largs.append(err.opt_str)
    def _process_short_opts(self, rargs, values):
        try:
            OptionParser._process_short_opts(self, rargs, values)
        except BadOptionError as err:
            self.largs.append(err.opt_str)

parser = PassThroughOptionParser(add_help_option=False)
parser.add_option('-a', '--all', action='store_true',
                      help="Run all tests.")
parser.add_option('-o', '--output',
                      help="Save the output from a test run to the log file.")
parser.add_option('--runner', metavar='class',
                      help="Test runner class for unit tests.")
parser.add_option('--xml',
                      help="Save results to file in SCons XML format.")
(options, args) = parser.parse_args()

#print "options:", options
#print "args:", args


opts, args = getopt.getopt(args, "b:def:hj:klnP:p:qsv:Xx:t",
                            ['baseline=', 'builddir=',
                             'debug', 'external', 'file=', 'help', 'no-progress',
                             'jobs=',
                             'list', 'no-exec', 'nopipefiles',
                             'package=', 'passed', 'python=',
                             'quiet',
                             'quit-on-failure',
                             'short-progress', 'time',
                             'version=', 'exec=',
                             'verbose='])

for o, a in opts:
    if o in ['-b', '--baseline']:
        baseline = a
    elif o in ['--builddir']:
        builddir = a
        if not os.path.isabs(builddir):
            builddir = os.path.normpath(os.path.join(cwd, builddir))
    elif o in ['-d', '--debug']:
        for dir in sys.path:
            pdb = os.path.join(dir, 'pdb.py')
            if os.path.exists(pdb):
                debug = pdb
                break
    elif o in ['-e', '--external']:
        external = 1
    elif o in ['-f', '--file']:
        if not os.path.isabs(a):
            a = os.path.join(cwd, a)
        testlistfile = a
    elif o in ['-h', '--help']:
        print(helpstr)
        sys.exit(0)
    elif o in ['-j', '--jobs']:
        jobs = int(a)
    elif o in ['-k', '--no-progress']:
        print_progress = 0
    elif o in ['-l', '--list']:
        list_only = 1
    elif o in ['-n', '--no-exec']:
        execute_tests = None
    elif o in ['--nopipefiles']:
        allow_pipe_files = False
    elif o in ['-p', '--package']:
        package = a
    elif o in ['--passed']:
        print_passed_summary = 1
    elif o in ['-P', '--python']:
        python = a
    elif o in ['-q', '--quiet']:
        printcommand = 0
        suppress_stdout = True
        suppress_stderr = True
    elif o in ['--quit-on-failure']:
        quit_on_failure = True
    elif o in ['-s', '--short-progress']:
        print_progress = 1
        suppress_stdout = True
        suppress_stderr = True
    elif o in ['-t', '--time']:
        print_times = 1
    elif o in ['--verbose']:
        os.environ['TESTCMD_VERBOSE'] = a
    elif o in ['-v', '--version']:
        version = a
    elif o in ['-X']:
        scons_exec = 1
    elif o in ['-x', '--exec']:
        scons = a



# --- setup stdout/stderr ---
class Unbuffered(object):
    def __init__(self, file):
        self.file = file
        self.softspace = 0  ## backward compatibility; not supported in Py3k
    def write(self, arg):
        self.file.write(arg)
        self.file.flush()
    def __getattr__(self, attr):
        return getattr(self.file, attr)

sys.stdout = Unbuffered(sys.stdout)
sys.stderr = Unbuffered(sys.stderr)

if options.output:
    logfile = open(options.output, 'w')
    class Tee(object):
        def __init__(self, openfile, stream):
            self.file = openfile
            self.stream = stream
        def write(self, data):
            self.file.write(data)
            self.stream.write(data)
    sys.stdout = Tee(logfile, sys.stdout)
    sys.stderr = Tee(logfile, sys.stderr)

# --- define helpers ----
if sys.platform in ('win32', 'cygwin'):

    def whereis(file):
        pathext = [''] + os.environ['PATHEXT'].split(os.pathsep)
        for dir in os.environ['PATH'].split(os.pathsep):
            f = os.path.join(dir, file)
            for ext in pathext:
                fext = f + ext
                if os.path.isfile(fext):
                    return fext
        return None

else:

    def whereis(file):
        for dir in os.environ['PATH'].split(os.pathsep):
            f = os.path.join(dir, file)
            if os.path.isfile(f):
                try:
                    st = os.stat(f)
                except OSError:
                    continue
                if stat.S_IMODE(st[stat.ST_MODE]) & 0o111:
                    return f
        return None

sp.append(builddir)
sp.append(cwd)

#
_ws = re.compile('\s')

def escape(s):
    if _ws.search(s):
        s = '"' + s + '"'
    s = s.replace('\\', '\\\\')
    return s


import subprocess

if not suppress_stdout and not suppress_stderr:
    # Without any output suppressed, we let the subprocess
    # write its stuff freely to stdout/stderr.
    def spawn_it(command_args):
        p = subprocess.Popen(' '.join(command_args),
                             shell=True)
        return (None, None, p.wait())
else:
    # Else, we catch the output of both pipes...
    if allow_pipe_files:
        # The subprocess.Popen() suffers from a well-known
        # problem. Data for stdout/stderr is read into a
        # memory buffer of fixed size, 65K which is not very much.
        # When it fills up, it simply stops letting the child process
        # write to it. The child will then sit and patiently wait to
        # be able to write the rest of its output. Hang!
        # In order to work around this, we follow a suggestion
        # by Anders Pearson in
        #   http://http://thraxil.org/users/anders/posts/2008/03/13/Subprocess-Hanging-PIPE-is-your-enemy/
        # and pass temp file objects to Popen() instead of the ubiquitous
        # subprocess.PIPE.
        def spawn_it(command_args):
            # Create temporary files
            import tempfile
            tmp_stdout = tempfile.TemporaryFile(mode='w+t')
            tmp_stderr = tempfile.TemporaryFile(mode='w+t')
            # Start subprocess...
            p = subprocess.Popen(' '.join(command_args),
                                 stdout=tmp_stdout,
                                 stderr=tmp_stderr,
                                 shell=True)
            # ... and wait for it to finish.
            ret = p.wait()

            try:
                # Rewind to start of files
                tmp_stdout.seek(0)
                tmp_stderr.seek(0)
                # Read output
                spawned_stdout = tmp_stdout.read()
                spawned_stderr = tmp_stderr.read()
            finally:
                # Remove temp files by closing them
                tmp_stdout.close()
                tmp_stderr.close()

            # Return values
            return (spawned_stderr, spawned_stdout, ret)

    else:
        # We get here only if the user gave the '--nopipefiles'
        # option, meaning the "temp file" approach for
        # subprocess.communicate() above shouldn't be used.
        # He hopefully knows what he's doing, but again we have a
        # potential deadlock situation in the following code:
        #   If the subprocess writes a lot of data to its stderr,
        #   the pipe will fill up (nobody's reading it yet) and the
        #   subprocess will wait for someone to read it.
        #   But the parent process is trying to read from stdin
        #   (but the subprocess isn't writing anything there).
        #   Hence a deadlock.
        # Be dragons here! Better don't use this!
        def spawn_it(command_args):
            p = subprocess.Popen(' '.join(command_args),
                                 stdout=subprocess.PIPE,
                                 stderr=subprocess.PIPE,
                                 shell=True)
            spawned_stdout = p.stdout.read()
            spawned_stderr = p.stderr.read()
            return (spawned_stderr, spawned_stdout, p.wait())

class Base(object):
    def __init__(self, path, spe=None):
        self.path = path
        self.abspath = os.path.abspath(path)
        if spe:
            for dir in spe:
                f = os.path.join(dir, path)
                if os.path.isfile(f):
                    self.abspath = f
                    break
        self.status = None

class SystemExecutor(Base):
    def execute(self):
        self.stderr, self.stdout, s = spawn_it(self.command_args)
        self.status = s
        if s < 0 or s > 2:
            sys.stdout.write("Unexpected exit status %d\n" % s)

class PopenExecutor(Base):
    # For an explanation of the following 'if ... else'
    # and the 'allow_pipe_files' option, please check out the
    # definition of spawn_it() above.
    if allow_pipe_files:
        def execute(self):
            # Create temporary files
            import tempfile
            tmp_stdout = tempfile.TemporaryFile(mode='w+t')
            tmp_stderr = tempfile.TemporaryFile(mode='w+t')
            # Start subprocess...
            p = subprocess.Popen(self.command_str,
                                 stdout=tmp_stdout,
                                 stderr=tmp_stderr,
                                 shell=True)
            # ... and wait for it to finish.
            self.status = p.wait()

            try:
                # Rewind to start of files
                tmp_stdout.seek(0)
                tmp_stderr.seek(0)
                # Read output
                self.stdout = tmp_stdout.read()
                self.stderr = tmp_stderr.read()
            finally:
                # Remove temp files by closing them
                tmp_stdout.close()
                tmp_stderr.close()
    else:
        def execute(self):
            p = subprocess.Popen(self.command_str,
                                 stdout=subprocess.PIPE,
                                 stderr=subprocess.PIPE,
                                 shell=True)
            self.stdout = p.stdout.read()
            self.stderr = p.stderr.read()
            self.status = p.wait()

class XML(PopenExecutor):
    def header(self, f):
        f.write('  <results>\n')
    def write(self, f):
        f.write('    <test>\n')
        f.write('      <file_name>%s</file_name>\n' % self.path)
        f.write('      <command_line>%s</command_line>\n' % self.command_str)
        f.write('      <exit_status>%s</exit_status>\n' % self.status)
        f.write('      <stdout>%s</stdout>\n' % self.stdout)
        f.write('      <stderr>%s</stderr>\n' % self.stderr)
        f.write('      <time>%.1f</time>\n' % self.test_time)
        f.write('    </test>\n')
    def footer(self, f):
        f.write('  <time>%.1f</time>\n' % self.total_time)
        f.write('  </results>\n')

if options.xml:
    Test = XML
else:
    Test = SystemExecutor

# --- start processing ---
if package:

    dir = {
        'deb'          : 'usr',
        'local-tar-gz' : None,
        'local-zip'    : None,
        'rpm'          : 'usr',
        'src-tar-gz'   : '',
        'src-zip'      : '',
        'tar-gz'       : '',
        'zip'          : '',
    }

    # The hard-coded "python2.1" here is the library directory
    # name on Debian systems, not an executable, so it's all right.
    lib = {
        'deb'        : os.path.join('python2.1', 'site-packages')
    }

    if package not in dir:
        sys.stderr.write("Unknown package '%s'\n" % package)
        sys.exit(2)

    test_dir = os.path.join(builddir, 'test-%s' % package)

    if dir[package] is None:
        scons_script_dir = test_dir
        globs = glob.glob(os.path.join(test_dir, 'scons-local-*'))
        if not globs:
            sys.stderr.write("No `scons-local-*' dir in `%s'\n" % test_dir)
            sys.exit(2)
        scons_lib_dir = None
        pythonpath_dir = globs[len(globs)-1]
    elif sys.platform == 'win32':
        scons_script_dir = os.path.join(test_dir, dir[package], 'Scripts')
        scons_lib_dir = os.path.join(test_dir, dir[package])
        pythonpath_dir = scons_lib_dir
    else:
        scons_script_dir = os.path.join(test_dir, dir[package], 'bin')
        l = lib.get(package, 'scons')
        scons_lib_dir = os.path.join(test_dir, dir[package], 'lib', l)
        pythonpath_dir = scons_lib_dir

    scons_runtest_dir = builddir

else:
    sd = None
    ld = None

    if not baseline or baseline == '.':
        base = cwd
    elif baseline == '-':
        url = None
        svn_info =  os.popen("svn info 2>&1", "r").read()
        match = re.search('URL: (.*)', svn_info)
        if match:
            url = match.group(1)
        if not url:
            sys.stderr.write('runtest.py: could not find a URL:\n')
            sys.stderr.write(svn_info)
            sys.exit(1)
        import tempfile
        base = tempfile.mkdtemp(prefix='runtest-tmp-')

        command = 'cd %s && svn co -q %s' % (base, url)

        base = os.path.join(base, os.path.split(url)[1])
        if printcommand:
            print(command)
        if execute_tests:
            os.system(command)
    else:
        base = baseline

    scons_runtest_dir = base

    if not external:
        scons_script_dir = sd or os.path.join(base, 'src', 'script')
        scons_lib_dir = ld or os.path.join(base, 'src', 'engine')
    else:
        scons_script_dir = sd or ''
        scons_lib_dir = ld or ''

    pythonpath_dir = scons_lib_dir

if scons:
    # Let the version of SCons that the -x option pointed to find
    # its own modules.
    os.environ['SCONS'] = scons
elif scons_lib_dir:
    # Because SCons is really aggressive about finding its modules,
    # it sometimes finds SCons modules elsewhere on the system.
    # This forces SCons to use the modules that are being tested.
    os.environ['SCONS_LIB_DIR'] = scons_lib_dir

if scons_exec:
    os.environ['SCONS_EXEC'] = '1'

if external:
    os.environ['SCONS_EXTERNAL_TEST'] = '1'

os.environ['SCONS_RUNTEST_DIR'] = scons_runtest_dir
os.environ['SCONS_SCRIPT_DIR'] = scons_script_dir
os.environ['SCONS_CWD'] = cwd

os.environ['SCONS_VERSION'] = version

old_pythonpath = os.environ.get('PYTHONPATH')

# FIXME: the following is necessary to pull in half of the testing
#        harness from $srcdir/etc. Those modules should be transfered
#        to testing/, in which case this manipulation of PYTHONPATH
#        should be able to go away.
pythonpaths = [ pythonpath_dir ]

# Add path of the QMTest folder to PYTHONPATH
# [ ] move used parts from QMTest to testing/framework/
scriptpath = os.path.dirname(os.path.realpath(__file__))
pythonpaths.append(os.path.join(scriptpath, 'QMTest'))
# Add path for testing framework to PYTHONPATH
pythonpaths.append(os.path.join(scriptpath, 'testing', 'framework'))


os.environ['PYTHONPATH'] = os.pathsep.join(pythonpaths)

if old_pythonpath:
    os.environ['PYTHONPATH'] = os.environ['PYTHONPATH'] + \
                               os.pathsep + \
                               old_pythonpath


# ---[ test discovery ]------------------------------------

tests = []

unittests = []
endtests = []

def find_Tests_py(directory):
    """ Look for unit tests """
    result = []
    for dirpath, dirnames, filenames in os.walk(directory):
        # Skip folders containing a sconstest.skip file
        if 'sconstest.skip' in filenames:
            continue
        for fname in filenames:
            if fname.endswith("Tests.py"):
                result.append(os.path.join(dirpath, fname))
    return sorted(result)

def find_py(directory):
    """ Look for end-to-end tests """
    result = []
    for dirpath, dirnames, filenames in os.walk(directory):
        # Skip folders containing a sconstest.skip file
        if 'sconstest.skip' in filenames:
            continue
        try:
            exclude_fp = open(os.path.join(dirpath, ".exclude_tests"))
        except EnvironmentError:
            excludes = []
        else:
            excludes = [ e.split('#', 1)[0].strip()
                         for e in exclude_fp.readlines() ]
        for fname in filenames:
            if fname.endswith(".py") and fname not in excludes:
                result.append(os.path.join(dirpath, fname))
    return sorted(result)


if testlistfile:
    tests = open(testlistfile, 'r').readlines()
    tests = [x for x in tests if x[0] != '#']
    tests = [x[:-1] for x in tests]
    tests = [x.strip() for x in tests]

else:
    testpaths = []

    # Each test path specifies a test file, or a directory to search for
    # SCons tests. SCons code layout assumes that any file under the 'src'
    # subdirectory that ends with 'Tests.py' is a unit test, and Python
    # script (*.py) under the 'test' subdirectory an end-to-end test.
    #
    # Note that there are some tests under 'src' that *begin* with
    # 'test_', but they're packaging and installation tests, not
    # functional tests, so we don't execute them by default.  (They can
    # still be executed by hand, though, and are routinely executed
    # by the Aegis packaging build to make sure that we're building
    # things correctly.)

    if options.all:
        testpaths = ['src', 'test']
    elif args:
        testpaths = args

    for tp in testpaths:
        for path in glob.glob(tp):
            if os.path.isdir(path):
                if path.startswith('src'):
                    for p in find_Tests_py(path):
                        unittests.append(p)
                elif path.startswith('test'):
                    for p in find_py(path):
                        endtests.append(p)
            else:
                if path.endswith("Tests.py"):
                    unittests.append(path)
                else:
                    endtests.append(path)

    tests.extend(unittests)
    tests.extend(endtests)
    tests.sort()

if not tests:
    sys.stderr.write(usagestr + """
runtest.py:  No tests were found.
             Tests can be specified on the command line, read from file
             with -f option, or discovered with -a to run all tests.
""")
    sys.exit(1)


# ---[ test processing ]-----------------------------------

tests = [Test(t) for t in tests]

if list_only:
    for t in tests:
        sys.stdout.write(t.path + "\n")
    sys.exit(0)

if not python:
    if os.name == 'java':
        python = os.path.join(sys.prefix, 'jython')
    else:
        python = sys.executable
os.environ["python_executable"] = python

# time.clock() is the suggested interface for doing benchmarking timings,
# but time.time() does a better job on Linux systems, so let that be
# the non-Windows default.

if sys.platform == 'win32':
    time_func = time.clock
else:
    time_func = time.time

if print_times:
    print_time_func = lambda fmt, time: sys.stdout.write(fmt % time)
else:
    print_time_func = lambda fmt, time: None

total_start_time = time_func()
total_num_tests = len(tests)
tests_completed = 0

def run_test(t, io_lock, async=True):
    global tests_completed
    header = ""
    command_args = ['-tt']
    if debug:
        command_args.append(debug)
    command_args.append(t.path)
    if options.runner and t.path in unittests:
        # For example --runner TestUnit.TAPTestRunner
        command_args.append('--runner ' + options.runner)
    t.command_args = [python] + command_args
    t.command_str = " ".join([escape(python)] + command_args)
    if printcommand:
        if print_progress:
            tests_completed += 1
            n = tests_completed # approx indicator of where we are
            header += ("%d/%d (%.2f%s) %s\n" % (n, total_num_tests,
                                                float(n)*100.0/float(total_num_tests),
                                                '%',
                                                t.command_str))
        else:
            header += t.command_str + "\n"
    if not suppress_stdout and not suppress_stderr:
        sys.stdout.write(header)
    head, tail = os.path.split(t.abspath)
    if head:
        os.environ['PYTHON_SCRIPT_DIR'] = head
    else:
        os.environ['PYTHON_SCRIPT_DIR'] = ''
    test_start_time = time_func()
    if execute_tests:
        t.execute()

    t.test_time = time_func() - test_start_time
    if io_lock:
        io_lock.acquire()
    if suppress_stdout or suppress_stderr:
        sys.stdout.write(header)
    if not suppress_stdout and t.stdout:
        print(t.stdout)
    if not suppress_stderr and t.stderr:
        print(t.stderr)
    print_time_func("Test execution time: %.1f seconds\n", t.test_time)
    if io_lock:
        io_lock.release()
    if quit_on_failure and t.status == 1:
        print("Exiting due to error")
        print(t.status)
        sys.exit(1)

class RunTest(threading.Thread):
    def __init__(self, queue, io_lock):
        threading.Thread.__init__(self)
        self.queue = queue
        self.io_lock = io_lock

    def run(self):
        while True:
            t = self.queue.get()
            run_test(t, io_lock, True)
            self.queue.task_done()

if jobs > 1 and threading_ok:
    print("Running tests using %d jobs"%jobs)
    # Start worker threads
    queue = Queue()
    io_lock = threading.Lock()
    for i in range(1, jobs):
        t = RunTest(queue, io_lock)
        t.daemon = True
        t.start()
    # Give tasks to workers
    for t in tests:
        queue.put(t)
    queue.join()
else:
    # Run tests serially
    if jobs > 1:
        print("Ignoring -j%d option; no python threading module available."%jobs)
    for t in tests:
        run_test(t, None, False)

# --- all tests are complete by the time we get here ---
if len(tests) > 0:
    tests[0].total_time = time_func() - total_start_time
    print_time_func("Total execution time for all tests: %.1f seconds\n", tests[0].total_time)

passed = [t for t in tests if t.status == 0]
fail = [t for t in tests if t.status == 1]
no_result = [t for t in tests if t.status == 2]

if len(tests) != 1 and execute_tests:
    if passed and print_passed_summary:
        if len(passed) == 1:
            sys.stdout.write("\nPassed the following test:\n")
        else:
            sys.stdout.write("\nPassed the following %d tests:\n" % len(passed))
        paths = [x.path for x in passed]
        sys.stdout.write("\t" + "\n\t".join(paths) + "\n")
    if fail:
        if len(fail) == 1:
            sys.stdout.write("\nFailed the following test:\n")
        else:
            sys.stdout.write("\nFailed the following %d tests:\n" % len(fail))
        paths = [x.path for x in fail]
        sys.stdout.write("\t" + "\n\t".join(paths) + "\n")
    if no_result:
        if len(no_result) == 1:
            sys.stdout.write("\nNO RESULT from the following test:\n")
        else:
            sys.stdout.write("\nNO RESULT from the following %d tests:\n" % len(no_result))
        paths = [x.path for x in no_result]
        sys.stdout.write("\t" + "\n\t".join(paths) + "\n")

if options.xml:
    if options.xml == '-':
        f = sys.stdout
    else:
        f = open(options.xml, 'w')
    tests[0].header(f)
    #f.write("test_result = [\n")
    for t in tests:
        t.write(f)
    tests[0].footer(f)
    #f.write("];\n")
    if options.xml != '-':
        f.close()

if len(fail):
    sys.exit(1)
elif len(no_result):
    sys.exit(2)
else:
    sys.exit(0)

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