#!/usr/bin/env python
#
# __COPYRIGHT__
#
# runtest.py - wrapper script for running SCons tests
#
# The 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 testing/
#
# This script adds src/ and testing/ 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-*).

"""
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 external Tools)
  -f --file FILE           Only run tests listed in FILE.
  -j --jobs JOBS           Run tests in JOBS parallel jobs.
  -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         Do not use the "file pipe" workaround for Popen()
                           for starting tests. WARNING: use only when too much
                           file traffic is giving you trouble AND you can be 
                           sure that none of your tests create output >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.
     --exclude-list FILE   List of tests to exclude in the current selection.
                           Use to exclude tests when using the -a option.

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

from __future__ import print_function


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

import threading
try:                        # python3
    from queue import Queue
except ImportError as e:    # python2
    from Queue import Queue
import subprocess

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
catch_output = False
suppress_output = False
allow_pipe_files = True
quit_on_failure = False
excludelistfile = None

script = sys.argv[0].split("/")[-1]
usagestr = """\
Usage: %(script)s [OPTIONS] [TEST ...]
       %(script)s -h|--help
""" % locals()

helpstr = usagestr + __doc__

# "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=', 'exclude-list='])

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)
        # don't let tests write stdout/stderr directly if multi-job,
        # or outputs will interleave and be hard to read
        catch_output = True
    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_output = catch_output = True
    elif o in ['--quit-on-failure']:
        quit_on_failure = True
    elif o in ['-s', '--short-progress']:
        print_progress = 1
        suppress_output = catch_output = 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
    elif o in ['--exclude-list']:
        excludelistfile = 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(r'\s')


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


if not catch_output:
    # Without any output suppressed, we let the subprocess
    # write its stuff freely to stdout/stderr.
    def spawn_it(command_args):
        p = subprocess.Popen(command_args, shell=False)
        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(command_args,
                                 stdout=tmp_stdout,
                                 stderr=tmp_stderr,
                                 shell=False)
            # ... 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(command_args,
                                 stdout=subprocess.PIPE,
                                 stderr=subprocess.PIPE,
                                 shell=False)
            spawned_stdout = p.stdout.read()
            spawned_stderr = p.stderr.read()
            return (spawned_stderr, spawned_stdout, p.wait())


class Base(object):
    def __init__(self, path, num, spe=None):
        self.path = path
        self.num = num
        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.split(),
                                 stdout=tmp_stdout,
                                 stderr=tmp_stderr,
                                 shell=False)
            # ... 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.split(),
                                 stdout=subprocess.PIPE,
                                 stderr=subprocess.PIPE,
                                 shell=False)
            self.status = p.wait()
            with p.stdout:
                self.stdout = p.stdout.read()
            with p.stderr:
                self.stderr = p.stderr.read()

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
        with os.popen("svn info 2>&1", "r") as p:
            svn_info =  p.read()
        match = re.search(r'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')

# Clear _JAVA_OPTIONS which java tools output to stderr when run breaking tests
if '_JAVA_OPTIONS' in os.environ:
    del os.environ['_JAVA_OPTIONS']

# 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 ]

scriptpath = os.path.dirname(os.path.realpath(__file__))

# 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 = []
excludetests = []
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:
            with open(os.path.join(dirpath, ".exclude_tests")) as f:
                excludes = [e.split("#", 1)[0].strip() for e in f.readlines()]
        except EnvironmentError:
            excludes = []
        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:
    with open(testlistfile, 'r') as f:
        tests = f.readlines()
    tests = [x for x in tests if x[0] != '#']
    tests = [x[:-1] for x in tests]
    tests = [x.strip() for x in tests]
    tests = [x for x in tests if len(x) > 0]

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:
        # Clean up path so it can match startswith's below
        # sys.stderr.write("Changed:%s->"%tp)
        # remove leading ./ or .\
        if tp[0] == '.' and tp[1] in (os.sep, os.altsep):
            tp = tp[2:]
        # tp = os.path.normpath(tp)
        # sys.stderr.write('->%s<-'%tp)
        # sys.stderr.write("to:%s\n"%tp)
        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)

if excludelistfile:
    with open(excludelistfile, 'r') as f:
        excludetests = f.readlines()
    excludetests = [x for x in excludetests if x[0] != '#']
    excludetests = [x[:-1] for x in excludetests]
    excludetests = [x.strip() for x in excludetests]
    excludetests = [x for x in excludetests if len(x) > 0]

# ---[ test processing ]-----------------------------------
tests = [t for t in tests if t not in excludetests]
tests = [Test(t, n+1) for n, t in enumerate(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.

#TODO: clean up when py2 support is dropped
try:
    time_func = time.perf_counter
except AttributeError:
    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
tests_passing = 0
tests_failing = 0


def log_result(t, io_lock):
    global tests_completed, tests_passing, tests_failing
    tests_completed += 1
    if t.status == 0:
        tests_passing += 1
    else:
        tests_failing += 1
    if io_lock:
        io_lock.acquire()
    if suppress_output or catch_output:
        sys.stdout.write(t.headline)
    if not suppress_output:
        if t.stdout:
            print(t.stdout)
        if 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)


def run_test(t, io_lock, run_async=True):
    t.headline = ""
    command_args = []
    if sys.version_info[0] < 3:
        command_args.append('-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 = [escape(python)] + command_args
    t.command_str = " ".join([escape(python)] + command_args)
    if printcommand:
        if print_progress:
            t.headline += ("%d/%d (%.2f%s) %s\n" % (t.num, total_num_tests,
                                                float(t.num)*100.0/float(total_num_tests),
                                                '%',
                                                t.command_str))
        else:
            t.headline += t.command_str + "\n"
    if not suppress_output and not catch_output:
        # defer printing the headline until test is done
        sys.stdout.write(t.headline)
    head, tail = os.path.split(t.abspath)
    fixture_dirs = []
    if head:
        fixture_dirs.append(head)
    fixture_dirs.append(os.path.join(scriptpath, 'test', 'fixture'))
    os.environ['FIXTURE_DIRS'] = os.pathsep.join(fixture_dirs)

    test_start_time = time_func()
    if execute_tests:
        t.execute()
    t.test_time = time_func() - test_start_time
    log_result(t, io_lock)


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, self.io_lock, True)
            self.queue.task_done()

if jobs > 1:
    print("Running tests using %d jobs"%jobs)
    # Start worker threads
    queue = Queue()
    io_lock = threading.Lock()
    for _ in range(jobs):
        t = RunTest(queue, io_lock)
        t.daemon = True
        t.start()
    # Give tasks to workers
    for t in tests:
        queue.put(t)
    # wait until all done
    queue.join()
else:
    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 options.output:
    if isinstance(sys.stdout, Tee):
        sys.stdout.file.close()
    if isinstance(sys.stderr, Tee):
        sys.stderr.file.close()

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

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