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# Copyright (C) 2012 Google, Inc.
# Copyright (C) 2010 Chris Jerdonek (cjerdonek@webkit.org)
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import logging
import StringIO
from webkitpy.common.system.systemhost import SystemHost
from webkitpy.layout_tests.views.metered_stream import MeteredStream
_log = logging.getLogger(__name__)
class Printer(object):
def __init__(self, stream, options=None):
self.stream = stream
self.meter = None
self.options = options
self.num_tests = 0
self.num_started = 0
self.num_errors = 0
self.num_failures = 0
self.running_tests = []
self.completed_tests = []
if options:
self.configure(options)
def configure(self, options):
self.options = options
if options.timing:
# --timing implies --verbose
options.verbose = max(options.verbose, 1)
log_level = logging.INFO
if options.quiet:
log_level = logging.WARNING
elif options.verbose == 2:
log_level = logging.DEBUG
self.meter = MeteredStream(self.stream, (options.verbose == 2),
number_of_columns=SystemHost().platform.terminal_width())
handler = logging.StreamHandler(self.stream)
# We constrain the level on the handler rather than on the root
# logger itself. This is probably better because the handler is
# configured and known only to this module, whereas the root logger
# is an object shared (and potentially modified) by many modules.
# Modifying the handler, then, is less intrusive and less likely to
# interfere with modifications made by other modules (e.g. in unit
# tests).
handler.name = __name__
handler.setLevel(log_level)
formatter = logging.Formatter("%(message)s")
handler.setFormatter(formatter)
logger = logging.getLogger()
logger.addHandler(handler)
logger.setLevel(logging.NOTSET)
# Filter out most webkitpy messages.
#
# Messages can be selectively re-enabled for this script by updating
# this method accordingly.
def filter_records(record):
"""Filter out autoinstall and non-third-party webkitpy messages."""
# FIXME: Figure out a way not to use strings here, for example by
# using syntax like webkitpy.test.__name__. We want to be
# sure not to import any non-Python 2.4 code, though, until
# after the version-checking code has executed.
if (record.name.startswith("webkitpy.common.system.autoinstall") or
record.name.startswith("webkitpy.test")):
return True
if record.name.startswith("webkitpy"):
return False
return True
testing_filter = logging.Filter()
testing_filter.filter = filter_records
# Display a message so developers are not mystified as to why
# logging does not work in the unit tests.
_log.info("Suppressing most webkitpy logging while running unit tests.")
handler.addFilter(testing_filter)
if self.options.pass_through:
# FIXME: Can't import at top of file, as outputcapture needs unittest2
from webkitpy.common.system import outputcapture
outputcapture.OutputCapture.stream_wrapper = _CaptureAndPassThroughStream
def write_update(self, msg):
self.meter.write_update(msg)
def print_started_test(self, source, test_name):
self.running_tests.append(test_name)
if len(self.running_tests) > 1:
suffix = ' (+%d)' % (len(self.running_tests) - 1)
else:
suffix = ''
if self.options.verbose:
write = self.meter.write_update
else:
write = self.meter.write_throttled_update
write(self._test_line(self.running_tests[0], suffix))
def print_finished_test(self, source, test_name, test_time, failures, errors):
write = self.meter.writeln
if failures:
lines = failures[0].splitlines() + ['']
suffix = ' failed:'
self.num_failures += 1
elif errors:
lines = errors[0].splitlines() + ['']
suffix = ' erred:'
self.num_errors += 1
else:
suffix = ' passed'
lines = []
if self.options.verbose:
write = self.meter.writeln
else:
write = self.meter.write_throttled_update
if self.options.timing:
suffix += ' %.4fs' % test_time
self.num_started += 1
if test_name == self.running_tests[0]:
self.completed_tests.insert(0, [test_name, suffix, lines])
else:
self.completed_tests.append([test_name, suffix, lines])
self.running_tests.remove(test_name)
for test_name, msg, lines in self.completed_tests:
if lines:
self.meter.writeln(self._test_line(test_name, msg))
for line in lines:
self.meter.writeln(' ' + line)
else:
write(self._test_line(test_name, msg))
self.completed_tests = []
def _test_line(self, test_name, suffix):
format_string = '[%d/%d] %s%s'
status_line = format_string % (self.num_started, self.num_tests, test_name, suffix)
if len(status_line) > self.meter.number_of_columns():
overflow_columns = len(status_line) - self.meter.number_of_columns()
ellipsis = '...'
if len(test_name) < overflow_columns + len(ellipsis) + 3:
# We don't have enough space even if we elide, just show the test method name.
test_name = test_name.split('.')[-1]
else:
new_length = len(test_name) - overflow_columns - len(ellipsis)
prefix = int(new_length / 2)
test_name = test_name[:prefix] + ellipsis + test_name[-(new_length - prefix):]
return format_string % (self.num_started, self.num_tests, test_name, suffix)
def print_result(self, run_time):
write = self.meter.writeln
write('Ran %d test%s in %.3fs' % (self.num_started, self.num_started != 1 and "s" or "", run_time))
if self.num_failures or self.num_errors:
write('FAILED (failures=%d, errors=%d)\n' % (self.num_failures, self.num_errors))
else:
write('\nOK\n')
class _CaptureAndPassThroughStream(object):
def __init__(self, stream):
self._buffer = StringIO.StringIO()
self._stream = stream
def write(self, msg):
self._stream.write(msg)
# Note that we don't want to capture any output generated by the debugger
# because that could cause the results of capture_output() to be invalid.
if not self._message_is_from_pdb():
self._buffer.write(msg)
def _message_is_from_pdb(self):
# We will assume that if the pdb module is in the stack then the output
# is being generated by the python debugger (or the user calling something
# from inside the debugger).
import inspect
import pdb
stack = inspect.stack()
return any(frame[1] == pdb.__file__.replace('.pyc', '.py') for frame in stack)
def flush(self):
self._stream.flush()
def getvalue(self):
return self._buffer.getvalue()
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