/brz/remove-bazaar

# Copyright (C) 2009, 2010, 2011 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""Tests for _chk_map_*."""

from .. import (

    tests,

    )

from ..bzr import (

    chk_map,

    )

from ..static_tuple import StaticTuple

stuple = StaticTuple

def load_tests(loader, standard_tests, pattern):

    suite, _ = tests.permute_tests_for_extension(standard_tests, loader,

        'breezy.bzr._chk_map_py', 'breezy.bzr._chk_map_pyx')

    return suite

class TestSearchKeys(tests.TestCase):

    module = None # Filled in by test parameterization

    def assertSearchKey16(self, expected, key):

        self.assertEqual(expected, self.module._search_key_16(key))

    def assertSearchKey255(self, expected, key):

        actual = self.module._search_key_255(key)

        self.assertEqual(expected, actual, 'actual: %r' % (actual,))

    def test_simple_16(self):

        self.assertSearchKey16(b'8C736521', stuple('foo',))

        self.assertSearchKey16(b'8C736521\x008C736521', stuple('foo', 'foo'))

        self.assertSearchKey16(b'8C736521\x0076FF8CAA', stuple('foo', 'bar'))

        self.assertSearchKey16(b'ED82CD11', stuple('abcd',))

    def test_simple_255(self):

        self.assertSearchKey255(b'\x8cse!', stuple('foo',))

        self.assertSearchKey255(b'\x8cse!\x00\x8cse!', stuple('foo', 'foo'))

        self.assertSearchKey255(b'\x8cse!\x00v\xff\x8c\xaa', stuple('foo', 'bar'))

        # The standard mapping for these would include '\n', so it should be

        # mapped to '_'

        self.assertSearchKey255(b'\xfdm\x93_\x00P_\x1bL', stuple('<', 'V'))

    def test_255_does_not_include_newline(self):

        # When mapping via _search_key_255, we should never have the '\n'

        # character, but all other 255 values should be present

        chars_used = set()

        for char_in in range(256):

            search_key = self.module._search_key_255(stuple(chr(char_in),))

            chars_used.update(search_key)

        all_chars = {chr(x) for x in range(256)}

        unused_chars = all_chars.symmetric_difference(chars_used)

        self.assertEqual(set(b'\n'), unused_chars)

class TestDeserialiseLeafNode(tests.TestCase):

    module = None

    def assertDeserialiseErrors(self, text):

        self.assertRaises((ValueError, IndexError),

            self.module._deserialise_leaf_node, text, b'not-a-real-sha')

    def test_raises_on_non_leaf(self):

        self.assertDeserialiseErrors(b'')

        self.assertDeserialiseErrors(b'short\n')

        self.assertDeserialiseErrors(b'chknotleaf:\n')

        self.assertDeserialiseErrors(b'chkleaf:x\n')

        self.assertDeserialiseErrors(b'chkleaf:\n')

        self.assertDeserialiseErrors(b'chkleaf:\nnotint\n')

        self.assertDeserialiseErrors(b'chkleaf:\n10\n')

        self.assertDeserialiseErrors(b'chkleaf:\n10\n256\n')

        self.assertDeserialiseErrors(b'chkleaf:\n10\n256\n10\n')

    def test_deserialise_empty(self):

        node = self.module._deserialise_leaf_node(

            b"chkleaf:\n10\n1\n0\n\n", stuple(b"sha1:1234",))

        self.assertEqual(0, len(node))

        self.assertEqual(10, node.maximum_size)

        self.assertEqual((b"sha1:1234",), node.key())

        self.assertIsInstance(node.key(), StaticTuple)

        self.assertIs(None, node._search_prefix)

        self.assertIs(None, node._common_serialised_prefix)

    def test_deserialise_items(self):

        node = self.module._deserialise_leaf_node(

            b"chkleaf:\n0\n1\n2\n\nfoo bar\x001\nbaz\nquux\x001\nblarh\n",

            (b"sha1:1234",))

        self.assertEqual(2, len(node))

        self.assertEqual([((b"foo bar",), b"baz"), ((b"quux",), b"blarh")],

            sorted(node.iteritems(None)))

    def test_deserialise_item_with_null_width_1(self):

        node = self.module._deserialise_leaf_node(

            b"chkleaf:\n0\n1\n2\n\nfoo\x001\nbar\x00baz\nquux\x001\nblarh\n",

            (b"sha1:1234",))

        self.assertEqual(2, len(node))

        self.assertEqual([((b"foo",), b"bar\x00baz"), ((b"quux",), b"blarh")],

            sorted(node.iteritems(None)))

    def test_deserialise_item_with_null_width_2(self):

        node = self.module._deserialise_leaf_node(

            b"chkleaf:\n0\n2\n2\n\nfoo\x001\x001\nbar\x00baz\n"

            b"quux\x00\x001\nblarh\n",

            (b"sha1:1234",))

        self.assertEqual(2, len(node))

        self.assertEqual([((b"foo", "1"), b"bar\x00baz"), ((b"quux", ""), b"blarh")],

            sorted(node.iteritems(None)))

    def test_iteritems_selected_one_of_two_items(self):

        node = self.module._deserialise_leaf_node(

            b"chkleaf:\n0\n1\n2\n\nfoo bar\x001\nbaz\nquux\x001\nblarh\n",

            (b"sha1:1234",))

        self.assertEqual(2, len(node))

        self.assertEqual([((b"quux",), b"blarh")],

            sorted(node.iteritems(None, [(b"quux",), (b"qaz",)])))

    def test_deserialise_item_with_common_prefix(self):

        node = self.module._deserialise_leaf_node(

            b"chkleaf:\n0\n2\n2\nfoo\x00\n1\x001\nbar\x00baz\n2\x001\nblarh\n",

            (b"sha1:1234",))

        self.assertEqual(2, len(node))

        self.assertEqual([((b"foo", b"1"), b"bar\x00baz"), ((b"foo", b"2"), b"blarh")],

            sorted(node.iteritems(None)))

        self.assertIs(chk_map._unknown, node._search_prefix)

        self.assertEqual(b'foo\x00', node._common_serialised_prefix)

    def test_deserialise_multi_line(self):

        node = self.module._deserialise_leaf_node(

            b"chkleaf:\n0\n2\n2\nfoo\x00\n1\x002\nbar\nbaz\n2\x002\nblarh\n\n",

            (b"sha1:1234",))

        self.assertEqual(2, len(node))

        self.assertEqual([((b"foo", b"1"), b"bar\nbaz"),

                          ((b"foo", b"2"), b"blarh\n"),

                         ], sorted(node.iteritems(None)))

        self.assertIs(chk_map._unknown, node._search_prefix)

        self.assertEqual(b'foo\x00', node._common_serialised_prefix)

    def test_key_after_map(self):

        node = self.module._deserialise_leaf_node(

            b"chkleaf:\n10\n1\n0\n\n", (b"sha1:1234",))

        node.map(None, (b"foo bar",), b"baz quux")

        self.assertEqual(None, node.key())

    def test_key_after_unmap(self):

        node = self.module._deserialise_leaf_node(

            b"chkleaf:\n0\n1\n2\n\nfoo bar\x001\nbaz\nquux\x001\nblarh\n",

            (b"sha1:1234",))

        node.unmap(None, (b"foo bar",))

        self.assertEqual(None, node.key())

class TestDeserialiseInternalNode(tests.TestCase):

    module = None

    def assertDeserialiseErrors(self, text):

        self.assertRaises((ValueError, IndexError),

            self.module._deserialise_internal_node, text,

                stuple(b'not-a-real-sha',))

    def test_raises_on_non_internal(self):

        self.assertDeserialiseErrors(b'')

        self.assertDeserialiseErrors(b'short\n')

        self.assertDeserialiseErrors(b'chknotnode:\n')

        self.assertDeserialiseErrors(b'chknode:x\n')

        self.assertDeserialiseErrors(b'chknode:\n')

        self.assertDeserialiseErrors(b'chknode:\nnotint\n')

        self.assertDeserialiseErrors(b'chknode:\n10\n')

        self.assertDeserialiseErrors(b'chknode:\n10\n256\n')

        self.assertDeserialiseErrors(b'chknode:\n10\n256\n10\n')

        # no trailing newline

        self.assertDeserialiseErrors(b'chknode:\n10\n256\n0\n1\nfo')

    def test_deserialise_one(self):

        node = self.module._deserialise_internal_node(

            b"chknode:\n10\n1\n1\n\na\x00sha1:abcd\n", stuple(b'sha1:1234',))

        self.assertIsInstance(node, chk_map.InternalNode)

        self.assertEqual(1, len(node))

        self.assertEqual(10, node.maximum_size)

        self.assertEqual((b"sha1:1234",), node.key())

        self.assertEqual(b'', node._search_prefix)

        self.assertEqual({b'a': (b'sha1:abcd',)}, node._items)

    def test_deserialise_with_prefix(self):

        node = self.module._deserialise_internal_node(

            b"chknode:\n10\n1\n1\npref\na\x00sha1:abcd\n",

            stuple(b'sha1:1234',))

        self.assertIsInstance(node, chk_map.InternalNode)

        self.assertEqual(1, len(node))

        self.assertEqual(10, node.maximum_size)

        self.assertEqual((b"sha1:1234",), node.key())

        self.assertEqual(b'pref', node._search_prefix)

        self.assertEqual({b'prefa': (b'sha1:abcd',)}, node._items)

        node = self.module._deserialise_internal_node(

            b"chknode:\n10\n1\n1\npref\n\x00sha1:abcd\n",

            stuple(b'sha1:1234',))

        self.assertIsInstance(node, chk_map.InternalNode)

        self.assertEqual(1, len(node))

        self.assertEqual(10, node.maximum_size)

        self.assertEqual((b"sha1:1234",), node.key())

        self.assertEqual(b'pref', node._search_prefix)

        self.assertEqual({b'pref': (b'sha1:abcd',)}, node._items)

    def test_deserialise_pref_with_null(self):

        node = self.module._deserialise_internal_node(

            b"chknode:\n10\n1\n1\npref\x00fo\n\x00sha1:abcd\n",

            stuple(b'sha1:1234',))

        self.assertIsInstance(node, chk_map.InternalNode)

        self.assertEqual(1, len(node))

        self.assertEqual(10, node.maximum_size)

        self.assertEqual((b"sha1:1234",), node.key())

        self.assertEqual(b'pref\x00fo', node._search_prefix)

        self.assertEqual({b'pref\x00fo': (b'sha1:abcd',)}, node._items)

    def test_deserialise_with_null_pref(self):

        node = self.module._deserialise_internal_node(

            b"chknode:\n10\n1\n1\npref\x00fo\n\x00\x00sha1:abcd\n",

            stuple(b'sha1:1234',))

        self.assertIsInstance(node, chk_map.InternalNode)

        self.assertEqual(1, len(node))

        self.assertEqual(10, node.maximum_size)

        self.assertEqual((b"sha1:1234",), node.key())

        self.assertEqual(b'pref\x00fo', node._search_prefix)

        self.assertEqual({b'pref\x00fo\x00': (b'sha1:abcd',)}, node._items)

class Test_BytesToTextKey(tests.TestCase):

    def assertBytesToTextKey(self, key, bytes):

        self.assertEqual(key,

                         self.module._bytes_to_text_key(bytes))

    def assertBytesToTextKeyRaises(self, bytes):

        # These are invalid bytes, and we want to make sure the code under test

        # raises an exception rather than segfaults, etc. We don't particularly

        # care what exception.

        self.assertRaises(Exception, self.module._bytes_to_text_key, bytes)

    def test_file(self):

        self.assertBytesToTextKey((b'file-id', b'revision-id'),

                 b'file: file-id\nparent-id\nname\nrevision-id\n'

                 b'da39a3ee5e6b4b0d3255bfef95601890afd80709\n100\nN')

    def test_invalid_no_kind(self):

        self.assertBytesToTextKeyRaises(

                 b'file  file-id\nparent-id\nname\nrevision-id\n'

                 b'da39a3ee5e6b4b0d3255bfef95601890afd80709\n100\nN')

    def test_invalid_no_space(self):

        self.assertBytesToTextKeyRaises(

                 b'file:file-id\nparent-id\nname\nrevision-id\n'

                 b'da39a3ee5e6b4b0d3255bfef95601890afd80709\n100\nN')

    def test_invalid_too_short_file_id(self):

        self.assertBytesToTextKeyRaises(b'file:file-id')

    def test_invalid_too_short_parent_id(self):

        self.assertBytesToTextKeyRaises(b'file:file-id\nparent-id')

    def test_invalid_too_short_name(self):

        self.assertBytesToTextKeyRaises(b'file:file-id\nparent-id\nname')

    def test_dir(self):

        self.assertBytesToTextKey((b'dir-id', b'revision-id'),

                 b'dir: dir-id\nparent-id\nname\nrevision-id')