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1# Copyright (C) 2010 Google Inc. All rights reserved.
2#
3# Redistribution and use in source and binary forms, with or without
4# modification, are permitted provided that the following conditions are
5# met:
6#
7#     * Redistributions of source code must retain the above copyright
8# notice, this list of conditions and the following disclaimer.
9#     * Redistributions in binary form must reproduce the above
10# copyright notice, this list of conditions and the following disclaimer
11# in the documentation and/or other materials provided with the
12# distribution.
13#     * Neither the name of Google Inc. nor the names of its
14# contributors may be used to endorse or promote products derived from
15# this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29"""Checks WebKit style for test_expectations files."""
30
31import logging
32import optparse
33import os
34import re
35import sys
36
37from common import TabChecker
38from webkitpy.common.host import Host
39from webkitpy.layout_tests.models.test_expectations import TestExpectationParser
40
41
42_log = logging.getLogger(__name__)
43
44
45class TestExpectationsChecker(object):
46    """Processes TestExpectations lines for validating the syntax."""
47
48    categories = set(['test/expectations'])
49
50    def __init__(self, file_path, handle_style_error, host=None):
51        self._file_path = file_path
52        self._handle_style_error = handle_style_error
53        self._tab_checker = TabChecker(file_path, handle_style_error)
54
55        # FIXME: host should be a required parameter, not an optional one.
56        host = host or Host()
57        host.initialize_scm()
58
59        self._port_obj = host.port_factory.get()
60
61        # Suppress error messages of test_expectations module since they will be reported later.
62        log = logging.getLogger("webkitpy.layout_tests.layout_package.test_expectations")
63        log.setLevel(logging.CRITICAL)
64
65    def _handle_error_message(self, lineno, message, confidence):
66        pass
67
68    def check_test_expectations(self, expectations_str, tests=None):
69        parser = TestExpectationParser(self._port_obj, tests, is_lint_mode=True)
70        expectations = parser.parse('expectations', expectations_str)
71
72        level = 5
73        for expectation_line in expectations:
74            for warning in expectation_line.warnings:
75                self._handle_style_error(expectation_line.line_numbers, 'test/expectations', level, warning)
76
77    def check_tabs(self, lines):
78        self._tab_checker.check(lines)
79
80    def check(self, lines):
81        expectations = '\n'.join(lines)
82        if self._port_obj:
83            self.check_test_expectations(expectations_str=expectations, tests=None)
84
85        # Warn tabs in lines as well
86        self.check_tabs(lines)
87