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# Copyright (C) 2008 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
"""Tests for chunks_to_lines."""
from bzrlib import tests
def load_tests(standard_tests, module, loader):
# parameterize all tests in this module
import bzrlib._chunks_to_lines_py as py_module
scenarios = [('python', {'module': py_module})]
if CompiledChunksToLinesFeature.available():
import bzrlib._chunks_to_lines_pyx as c_module
scenarios.append(('C', {'module': c_module}))
else:
# the compiled module isn't available, so we add a failing test
class FailWithoutFeature(tests.TestCase):
def test_fail(self):
self.requireFeature(CompiledChunksToLinesFeature)
standard_tests.addTest(FailWithoutFeature("test_fail"))
return tests.multiply_tests(standard_tests, scenarios, loader.suiteClass())
class _CompiledChunksToLinesFeature(tests.Feature):
def _probe(self):
try:
import bzrlib._chunks_to_lines_pyx
except ImportError:
return False
return True
def feature_name(self):
return 'bzrlib._chunks_to_lines_pyx'
CompiledChunksToLinesFeature = _CompiledChunksToLinesFeature()
class TestChunksToLines(tests.TestCase):
module = None # Filled in by test parameterization
def assertChunksToLines(self, lines, chunks, alreadly_lines=False):
result = self.module.chunks_to_lines(chunks)
self.assertEqual(lines, result)
if alreadly_lines:
self.assertIs(chunks, result)
def test_fulltext_chunk_to_lines(self):
self.assertChunksToLines(['foo\n', 'bar\r\n', 'ba\rz\n'],
['foo\nbar\r\nba\rz\n'])
self.assertChunksToLines(['foobarbaz\n'], ['foobarbaz\n'],
alreadly_lines=True)
self.assertChunksToLines(['foo\n', 'bar\n', '\n', 'baz\n', '\n', '\n'],
['foo\nbar\n\nbaz\n\n\n'])
self.assertChunksToLines(['foobarbaz'], ['foobarbaz'],
alreadly_lines=True)
self.assertChunksToLines(['foobarbaz'], ['foo', 'bar', 'baz'])
def test_newlines(self):
self.assertChunksToLines(['\n'], ['\n'], alreadly_lines=True)
self.assertChunksToLines(['\n'], ['', '\n', ''])
self.assertChunksToLines(['\n'], ['\n', ''])
self.assertChunksToLines(['\n'], ['', '\n'])
self.assertChunksToLines(['\n', '\n', '\n'], ['\n\n\n'])
self.assertChunksToLines(['\n', '\n', '\n'], ['\n', '\n', '\n'],
alreadly_lines=True)
def test_lines_to_lines(self):
self.assertChunksToLines(['foo\n', 'bar\r\n', 'ba\rz\n'],
['foo\n', 'bar\r\n', 'ba\rz\n'],
alreadly_lines=True)
def test_no_final_newline(self):
self.assertChunksToLines(['foo\n', 'bar\r\n', 'ba\rz'],
['foo\nbar\r\nba\rz'])
self.assertChunksToLines(['foo\n', 'bar\r\n', 'ba\rz'],
['foo\n', 'bar\r\n', 'ba\rz'],
alreadly_lines=True)
self.assertChunksToLines(('foo\n', 'bar\r\n', 'ba\rz'),
('foo\n', 'bar\r\n', 'ba\rz'),
alreadly_lines=True)
self.assertChunksToLines([], [], alreadly_lines=True)
self.assertChunksToLines(['foobarbaz'], ['foobarbaz'],
alreadly_lines=True)
self.assertChunksToLines([], [''])
def test_mixed(self):
self.assertChunksToLines(['foo\n', 'bar\r\n', 'ba\rz'],
['foo\n', 'bar\r\nba\r', 'z'])
self.assertChunksToLines(['foo\n', 'bar\r\n', 'ba\rz'],
['foo\nb', 'a', 'r\r\nba\r', 'z'])
self.assertChunksToLines(['foo\n', 'bar\r\n', 'ba\rz'],
['foo\nbar\r\nba', '\r', 'z'])
self.assertChunksToLines(['foo\n', 'bar\r\n', 'ba\rz'],
['foo\n', '', 'bar\r\nba', '\r', 'z'])
self.assertChunksToLines(['foo\n', 'bar\r\n', 'ba\rz\n'],
['foo\n', 'bar\r\n', 'ba\rz\n', ''])
self.assertChunksToLines(['foo\n', 'bar\r\n', 'ba\rz\n'],
['foo\n', 'bar', '\r\n', 'ba\rz\n'])
def test_not_lines(self):
# We should raise a TypeError, not crash
self.assertRaises(TypeError, self.module.chunks_to_lines,
object())
self.assertRaises(TypeError, self.module.chunks_to_lines,
[object()])
self.assertRaises(TypeError, self.module.chunks_to_lines,
['foo', object()])
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