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# 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.
"""Contains unit tests for filereader.py."""
from __future__ import with_statement
import codecs
import os
import shutil
import tempfile
import unittest
from webkitpy.common.system.logtesting import LoggingTestCase
from webkitpy.style.checker import ProcessorBase
from webkitpy.style.filereader import TextFileReader
class TextFileReaderTest(LoggingTestCase):
class MockProcessor(ProcessorBase):
"""A processor for test purposes.
This processor simply records the parameters passed to its process()
method for later checking by the unittest test methods.
"""
def __init__(self):
self.processed = []
"""The parameters passed for all calls to the process() method."""
def should_process(self, file_path):
return not file_path.endswith('should_not_process.txt')
def process(self, lines, file_path, test_kwarg=None):
self.processed.append((lines, file_path, test_kwarg))
def setUp(self):
LoggingTestCase.setUp(self)
processor = TextFileReaderTest.MockProcessor()
temp_dir = tempfile.mkdtemp()
self._file_reader = TextFileReader(processor)
self._processor = processor
self._temp_dir = temp_dir
def tearDown(self):
LoggingTestCase.tearDown(self)
shutil.rmtree(self._temp_dir)
def _create_file(self, rel_path, text, encoding="utf-8"):
"""Create a file with given text and return the path to the file."""
# FIXME: There are better/more secure APIs for creatin tmp file paths.
file_path = os.path.join(self._temp_dir, rel_path)
with codecs.open(file_path, "w", encoding) as file:
file.write(text)
return file_path
def _passed_to_processor(self):
"""Return the parameters passed to MockProcessor.process()."""
return self._processor.processed
def _assert_file_reader(self, passed_to_processor, file_count):
"""Assert the state of the file reader."""
self.assertEquals(passed_to_processor, self._passed_to_processor())
self.assertEquals(file_count, self._file_reader.file_count)
def test_process_file__does_not_exist(self):
try:
self._file_reader.process_file('does_not_exist.txt')
except SystemExit, err:
self.assertEquals(str(err), '1')
else:
self.fail('No Exception raised.')
self._assert_file_reader([], 1)
self.assertLog(["ERROR: File does not exist: 'does_not_exist.txt'\n"])
def test_process_file__is_dir(self):
temp_dir = os.path.join(self._temp_dir, 'test_dir')
os.mkdir(temp_dir)
self._file_reader.process_file(temp_dir)
# Because the log message below contains exception text, it is
# possible that the text varies across platforms. For this reason,
# we check only the portion of the log message that we control,
# namely the text at the beginning.
log_messages = self.logMessages()
# We remove the message we are looking at to prevent the tearDown()
# from raising an exception when it asserts that no log messages
# remain.
message = log_messages.pop()
self.assertTrue(message.startswith('WARNING: Could not read file. '
"Skipping: '%s'\n " % temp_dir))
self._assert_file_reader([], 1)
def test_process_file__should_not_process(self):
file_path = self._create_file('should_not_process.txt', 'contents')
self._file_reader.process_file(file_path)
self._assert_file_reader([], 1)
def test_process_file__multiple_lines(self):
file_path = self._create_file('foo.txt', 'line one\r\nline two\n')
self._file_reader.process_file(file_path)
processed = [(['line one\r', 'line two', ''], file_path, None)]
self._assert_file_reader(processed, 1)
def test_process_file__file_stdin(self):
file_path = self._create_file('-', 'file contents')
self._file_reader.process_file(file_path=file_path, test_kwarg='foo')
processed = [(['file contents'], file_path, 'foo')]
self._assert_file_reader(processed, 1)
def test_process_file__with_kwarg(self):
file_path = self._create_file('foo.txt', 'file contents')
self._file_reader.process_file(file_path=file_path, test_kwarg='foo')
processed = [(['file contents'], file_path, 'foo')]
self._assert_file_reader(processed, 1)
def test_process_paths(self):
# We test a list of paths that contains both a file and a directory.
dir = os.path.join(self._temp_dir, 'foo_dir')
os.mkdir(dir)
file_path1 = self._create_file('file1.txt', 'foo')
rel_path = os.path.join('foo_dir', 'file2.txt')
file_path2 = self._create_file(rel_path, 'bar')
self._file_reader.process_paths([dir, file_path1])
processed = [(['bar'], file_path2, None),
(['foo'], file_path1, None)]
self._assert_file_reader(processed, 2)
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