~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2005 by 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

from cStringIO import StringIO

import os

from bzrlib.branch import Branch

import bzrlib.errors as errors

from bzrlib.diff import internal_diff

from bzrlib.inventory import Inventory, ROOT_ID

import bzrlib.inventory as inventory

from bzrlib.osutils import has_symlinks, rename

from bzrlib.tests import TestCase, TestCaseInTempDir

class TestInventory(TestCase):

    def test_is_within(self):

        from bzrlib.osutils import is_inside_any

        SRC_FOO_C = os.path.join('src', 'foo.c')

        for dirs, fn in [(['src', 'doc'], SRC_FOO_C),

                         (['src'], SRC_FOO_C),

                         (['src'], 'src'),

                         ]:

            self.assert_(is_inside_any(dirs, fn))

        for dirs, fn in [(['src'], 'srccontrol'),

                         (['src'], 'srccontrol/foo')]:

            self.assertFalse(is_inside_any(dirs, fn))

    def test_ids(self):

        """Test detection of files within selected directories."""

        inv = Inventory()

        for args in [('src', 'directory', 'src-id'), 

                     ('doc', 'directory', 'doc-id'), 

                     ('src/hello.c', 'file'),

                     ('src/bye.c', 'file', 'bye-id'),

                     ('Makefile', 'file')]:

            inv.add_path(*args)

        self.assertEqual(inv.path2id('src'), 'src-id')

        self.assertEqual(inv.path2id('src/bye.c'), 'bye-id')

        self.assert_('src-id' in inv)

    def test_version(self):

        """Inventory remembers the text's version."""

        inv = Inventory()

        ie = inv.add_path('foo.txt', 'file')

        ## XXX

class TestInventoryEntry(TestCase):

    def test_file_kind_character(self):

        file = inventory.InventoryFile('123', 'hello.c', ROOT_ID)

        self.assertEqual(file.kind_character(), '')

    def test_dir_kind_character(self):

        dir = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)

        self.assertEqual(dir.kind_character(), '/')

    def test_link_kind_character(self):

        dir = inventory.InventoryLink('123', 'hello.c', ROOT_ID)

        self.assertEqual(dir.kind_character(), '')

    def test_dir_detect_changes(self):

        left = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)

        left.text_sha1 = 123

        left.executable = True

        left.symlink_target='foo'

        right = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)

        right.text_sha1 = 321

        right.symlink_target='bar'

        self.assertEqual((False, False), left.detect_changes(right))

        self.assertEqual((False, False), right.detect_changes(left))

    def test_file_detect_changes(self):

        left = inventory.InventoryFile('123', 'hello.c', ROOT_ID)

        left.text_sha1 = 123

        right = inventory.InventoryFile('123', 'hello.c', ROOT_ID)

        right.text_sha1 = 123

        self.assertEqual((False, False), left.detect_changes(right))

        self.assertEqual((False, False), right.detect_changes(left))

        left.executable = True

        self.assertEqual((False, True), left.detect_changes(right))

        self.assertEqual((False, True), right.detect_changes(left))

        right.text_sha1 = 321

        self.assertEqual((True, True), left.detect_changes(right))

        self.assertEqual((True, True), right.detect_changes(left))

    def test_symlink_detect_changes(self):

        left = inventory.InventoryLink('123', 'hello.c', ROOT_ID)

        left.text_sha1 = 123

        left.executable = True

        left.symlink_target='foo'

        right = inventory.InventoryLink('123', 'hello.c', ROOT_ID)

        right.text_sha1 = 321

        right.symlink_target='foo'

        self.assertEqual((False, False), left.detect_changes(right))

        self.assertEqual((False, False), right.detect_changes(left))

        left.symlink_target = 'different'

        self.assertEqual((True, False), left.detect_changes(right))

        self.assertEqual((True, False), right.detect_changes(left))

    def test_file_has_text(self):

        file = inventory.InventoryFile('123', 'hello.c', ROOT_ID)

        self.failUnless(file.has_text())

    def test_directory_has_text(self):

        dir = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)

        self.failIf(dir.has_text())

    def test_link_has_text(self):

        link = inventory.InventoryLink('123', 'hello.c', ROOT_ID)

        self.failIf(link.has_text())

class TestEntryDiffing(TestCaseInTempDir):

    def setUp(self):

        super(TestEntryDiffing, self).setUp()

        self.branch = Branch.initialize(u'.')

        self.wt = self.branch.working_tree()

        print >> open('file', 'wb'), 'foo'

        self.branch.working_tree().add(['file'], ['fileid'])

        if has_symlinks():

            os.symlink('target1', 'symlink')

            self.branch.working_tree().add(['symlink'], ['linkid'])

        self.wt.commit('message_1', rev_id = '1')

        print >> open('file', 'wb'), 'bar'

        if has_symlinks():

            os.unlink('symlink')

            os.symlink('target2', 'symlink')

        self.tree_1 = self.branch.repository.revision_tree('1')

        self.inv_1 = self.branch.repository.get_inventory('1')

        self.file_1 = self.inv_1['fileid']

        self.tree_2 = self.branch.working_tree()

        self.inv_2 = self.tree_2.read_working_inventory()

        self.file_2 = self.inv_2['fileid']

        if has_symlinks():

            self.link_1 = self.inv_1['linkid']

            self.link_2 = self.inv_2['linkid']

    def test_file_diff_deleted(self):

        output = StringIO()

        self.file_1.diff(internal_diff, 

                          "old_label", self.tree_1,

                          "/dev/null", None, None,

                          output)

        self.assertEqual(output.getvalue(), "--- old_label\t\n"

                                            "+++ /dev/null\t\n"

                                            "@@ -1,1 +0,0 @@\n"

                                            "-foo\n"

                                            "\n")

    def test_file_diff_added(self):

        output = StringIO()

        self.file_1.diff(internal_diff, 

                          "new_label", self.tree_1,

                          "/dev/null", None, None,

                          output, reverse=True)

        self.assertEqual(output.getvalue(), "--- /dev/null\t\n"

                                            "+++ new_label\t\n"

                                            "@@ -0,0 +1,1 @@\n"

                                            "+foo\n"

                                            "\n")

    def test_file_diff_changed(self):

        output = StringIO()

        self.file_1.diff(internal_diff, 

                          "/dev/null", self.tree_1, 

                          "new_label", self.file_2, self.tree_2,

                          output)

        self.assertEqual(output.getvalue(), "--- /dev/null\t\n"

                                            "+++ new_label\t\n"

                                            "@@ -1,1 +1,1 @@\n"

                                            "-foo\n"

                                            "+bar\n"

                                            "\n")

    def test_link_diff_deleted(self):

        if not has_symlinks():

            return

        output = StringIO()

        self.link_1.diff(internal_diff, 

                          "old_label", self.tree_1,

                          "/dev/null", None, None,

                          output)

        self.assertEqual(output.getvalue(),

                         "=== target was 'target1'\n")

    def test_link_diff_added(self):

        if not has_symlinks():

            return

        output = StringIO()

        self.link_1.diff(internal_diff, 

                          "new_label", self.tree_1,

                          "/dev/null", None, None,

                          output, reverse=True)

        self.assertEqual(output.getvalue(),

                         "=== target is 'target1'\n")

    def test_link_diff_changed(self):

        if not has_symlinks():

            return

        output = StringIO()

        self.link_1.diff(internal_diff, 

                          "/dev/null", self.tree_1, 

                          "new_label", self.link_2, self.tree_2,

                          output)

        self.assertEqual(output.getvalue(),

                         "=== target changed 'target1' => 'target2'\n")

class TestSnapshot(TestCaseInTempDir):

    def setUp(self):

        # for full testing we'll need a branch

        # with a subdir to test parent changes.

        # and a file, link and dir under that.

        # but right now I only need one attribute

        # to change, and then test merge patterns

        # with fake parent entries.

        super(TestSnapshot, self).setUp()

        self.branch = Branch.initialize(u'.')

        self.build_tree(['subdir/', 'subdir/file'], line_endings='binary')

        self.branch.working_tree().add(['subdir', 'subdir/file'],

                                       ['dirid', 'fileid'])

        if has_symlinks():

            pass

        self.wt = self.branch.working_tree()

        self.wt.commit('message_1', rev_id = '1')

        self.tree_1 = self.branch.repository.revision_tree('1')

        self.inv_1 = self.branch.repository.get_inventory('1')

        self.file_1 = self.inv_1['fileid']

        self.work_tree = self.branch.working_tree()

        self.file_active = self.work_tree.inventory['fileid']

    def test_snapshot_new_revision(self):

        # This tests that a simple commit with no parents makes a new

        # revision value in the inventory entry

        self.file_active.snapshot('2', 'subdir/file', {}, self.work_tree, 

                                  self.branch.repository.weave_store,

                                  self.branch.get_transaction())

        # expected outcome - file_1 has a revision id of '2', and we can get

        # its text of 'file contents' out of the weave.

        self.assertEqual(self.file_1.revision, '1')

        self.assertEqual(self.file_active.revision, '2')

        # this should be a separate test probably, but lets check it once..

        lines = self.branch.repository.weave_store.get_lines('fileid','2',

            self.branch.get_transaction())

        self.assertEqual(lines, ['contents of subdir/file\n'])

    def test_snapshot_unchanged(self):

        #This tests that a simple commit does not make a new entry for

        # an unchanged inventory entry

        self.file_active.snapshot('2', 'subdir/file', {'1':self.file_1},

                                  self.work_tree, 

                                  self.branch.repository.weave_store,

                                  self.branch.get_transaction())

        self.assertEqual(self.file_1.revision, '1')

        self.assertEqual(self.file_active.revision, '1')

        self.assertRaises(errors.WeaveError,

                          self.branch.repository.weave_store.get_lines, 

                          'fileid', '2', self.branch.get_transaction())

    def test_snapshot_merge_identical_different_revid(self):

        # This tests that a commit with two identical parents, one of which has

        # a different revision id, results in a new revision id in the entry.

        # 1->other, commit a merge of other against 1, results in 2.

        other_ie = inventory.InventoryFile('fileid', 'newname', self.file_1.parent_id)

        other_ie = inventory.InventoryFile('fileid', 'file', self.file_1.parent_id)

        other_ie.revision = '1'

        other_ie.text_sha1 = self.file_1.text_sha1

        other_ie.text_size = self.file_1.text_size

        self.assertEqual(self.file_1, other_ie)

        other_ie.revision = 'other'

        self.assertNotEqual(self.file_1, other_ie)

        self.branch.repository.weave_store.add_identical_text('fileid', '1', 

            'other', ['1'], self.branch.get_transaction())

        self.file_active.snapshot('2', 'subdir/file', 

                                  {'1':self.file_1, 'other':other_ie},

                                  self.work_tree, 

                                  self.branch.repository.weave_store,

                                  self.branch.get_transaction())

        self.assertEqual(self.file_active.revision, '2')

    def test_snapshot_changed(self):

        # This tests that a commit with one different parent results in a new

        # revision id in the entry.

        self.file_active.name='newname'

        rename('subdir/file', 'subdir/newname')

        self.file_active.snapshot('2', 'subdir/newname', {'1':self.file_1}, 

                                  self.work_tree, 

                                  self.branch.repository.weave_store,

                                  self.branch.get_transaction())

        # expected outcome - file_1 has a revision id of '2'

        self.assertEqual(self.file_active.revision, '2')

class TestPreviousHeads(TestCaseInTempDir):

    def setUp(self):

        # we want several inventories, that respectively

        # give use the following scenarios:

        # A) fileid not in any inventory (A),

        # B) fileid present in one inventory (B) and (A,B)

        # C) fileid present in two inventories, and they

        #   are not mutual descendents (B, C)

        # D) fileid present in two inventories and one is

        #   a descendent of the other. (B, D)

        super(TestPreviousHeads, self).setUp()

        self.build_tree(['file'])

        self.branch = Branch.initialize(u'.')

        self.wt = self.branch.working_tree()

        self.wt.commit('new branch', allow_pointless=True, rev_id='A')

        self.inv_A = self.branch.repository.get_inventory('A')

        self.wt.add(['file'], ['fileid'])

        self.wt.commit('add file', rev_id='B')

        self.inv_B = self.branch.repository.get_inventory('B')

        self.branch.control_files.put_utf8('revision-history', 'A\n')

        self.assertEqual(self.branch.revision_history(), ['A'])

        self.wt.commit('another add of file', rev_id='C')

        self.inv_C = self.branch.repository.get_inventory('C')

        self.wt.add_pending_merge('B')

        self.wt.commit('merge in B', rev_id='D')

        self.inv_D = self.branch.repository.get_inventory('D')

        self.file_active = self.branch.working_tree().inventory['fileid']

        self.weave = self.branch.repository.weave_store.get_weave('fileid',

            self.branch.get_transaction())

    def get_previous_heads(self, inventories):

        return self.file_active.find_previous_heads(inventories, self.weave)

    def test_fileid_in_no_inventory(self):

        self.assertEqual({}, self.get_previous_heads([self.inv_A]))

    def test_fileid_in_one_inventory(self):

        self.assertEqual({'B':self.inv_B['fileid']},

                         self.get_previous_heads([self.inv_B]))

        self.assertEqual({'B':self.inv_B['fileid']},

                         self.get_previous_heads([self.inv_A, self.inv_B]))

        self.assertEqual({'B':self.inv_B['fileid']},

                         self.get_previous_heads([self.inv_B, self.inv_A]))

    def test_fileid_in_two_inventories_gives_both_entries(self):

        self.assertEqual({'B':self.inv_B['fileid'],

                          'C':self.inv_C['fileid']},

                          self.get_previous_heads([self.inv_B, self.inv_C]))

        self.assertEqual({'B':self.inv_B['fileid'],

                          'C':self.inv_C['fileid']},

                          self.get_previous_heads([self.inv_C, self.inv_B]))

    def test_fileid_in_two_inventories_already_merged_gives_head(self):

        self.assertEqual({'D':self.inv_D['fileid']},

                         self.get_previous_heads([self.inv_B, self.inv_D]))

        self.assertEqual({'D':self.inv_D['fileid']},

                         self.get_previous_heads([self.inv_D, self.inv_B]))

    # TODO: test two inventories with the same file revision