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# Copyright (C) 2010 Google Inc. All rights reserved.
#
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"""Checks WebKit style for test_expectations files."""
import logging
import optparse
import os
import re
import sys
from common import TabChecker
from webkitpy.common.host import Host
from webkitpy.layout_tests.models import test_expectations
from webkitpy.style.error_handlers import DefaultStyleErrorHandler
_log = logging.getLogger(__name__)
class TestExpectationsChecker(object):
"""Processes TestExpectations lines for validating the syntax."""
categories = set(['test/expectations'])
def _determine_port_from_expectations_path(self, host, expectations_path):
# Pass a configuration to avoid calling default_configuration() when initializing the port (takes 0.5 seconds on a Mac Pro!).
options_wk1 = optparse.Values({'configuration': 'Release', 'webkit_test_runner': False})
options_wk2 = optparse.Values({'configuration': 'Release', 'webkit_test_runner': True})
for port_name in host.port_factory.all_port_names():
ports = [host.port_factory.get(port_name, options=options_wk1), host.port_factory.get(port_name, options=options_wk2)]
for port in ports:
for test_expectation_file in port.expectations_files():
if test_expectation_file.replace(port.path_from_webkit_base() + host.filesystem.sep, '') == expectations_path:
return port
return None
def __init__(self, file_path, handle_style_error, host=None):
self._file_path = file_path
self._handle_style_error = handle_style_error
self._tab_checker = TabChecker(file_path, handle_style_error)
# FIXME: host should be a required parameter, not an optional one.
host = host or Host()
host.initialize_scm()
self._port_obj = self._determine_port_from_expectations_path(host, file_path)
# Suppress error messages of test_expectations module since they will be reported later.
log = logging.getLogger("webkitpy.layout_tests.layout_package.test_expectations")
log.setLevel(logging.CRITICAL)
def _handle_error_message(self, lineno, message, confidence):
pass
def check_test_expectations(self, expectations_str, tests=None):
parser = test_expectations.TestExpectationParser(self._port_obj, tests, allow_rebaseline_modifier=False)
expectations = parser.parse('expectations', expectations_str)
level = 5
for expectation_line in expectations:
for warning in expectation_line.warnings:
self._handle_style_error(expectation_line.line_number, 'test/expectations', level, warning)
def check_tabs(self, lines):
self._tab_checker.check(lines)
def check(self, lines):
expectations = '\n'.join(lines)
if self._port_obj:
self.check_test_expectations(expectations_str=expectations, tests=None)
# Warn tabs in lines as well
self.check_tabs(lines)
@staticmethod
def _should_log_linter_warning(warning, files, cwd, host):
abs_filename = host.filesystem.join(cwd, warning.filename)
# Case 1, the line the warning was tied to is in our patch.
if abs_filename in files and files[abs_filename] and warning.line_number in files[abs_filename]:
return True
for file, lines in warning.related_files.iteritems():
abs_filename = host.filesystem.join(cwd, file)
if abs_filename in files:
# Case 2, a file associated with the warning is in our patch
# Note that this will really only happen if you delete a test.
if lines is None:
return True
# Case 3, a line associated with the warning is in our patch.
for line in lines:
if files[abs_filename] and line in files[abs_filename]:
return True
return False
@staticmethod
def lint_test_expectations(files, configuration, cwd, increment_error_count=lambda: 0, line_numbers=None, host=Host()):
error_count = 0
files_linted = set()
ports_to_lint = [host.port_factory.get(name) for name in host.port_factory.all_port_names()]
for port in ports_to_lint:
for expectations_file in port.expectations_dict().keys():
style_error_handler = DefaultStyleErrorHandler(expectations_file, configuration, increment_error_count, line_numbers)
try:
if expectations_file in files_linted:
continue
expectations = test_expectations.TestExpectations(
port,
expectations_to_lint={expectations_file: port.expectations_dict()[expectations_file]})
expectations.parse_all_expectations()
except test_expectations.ParseError as e:
for warning in e.warnings:
if TestExpectationsChecker._should_log_linter_warning(warning, files, cwd, host):
style_error_handler(warning.line_number, 'test/expectations', 5, warning.error)
error_count += 1
files_linted.add(expectations_file)
return error_count