/brz/remove-bazaar

# Copyright (C) 2007-2010 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

"Test suite for the bzr bisect plugin."

from io import StringIO

import os

import shutil

from ..controldir import ControlDir

from .. import bisect

from . import (

    TestCaseWithTransport,

    TestSkipped,

    )

class BisectTestCase(TestCaseWithTransport):

    """Test harness specific to the bisect plugin."""

    def assertRevno(self, rev):

        """Make sure we're at the right revision."""

        rev_contents = {1: "one", 1.1: "one dot one", 1.2: "one dot two",

                        1.3: "one dot three", 2: "two", 3: "three",

                        4: "four", 5: "five"}

        with open("test_file") as f:

            content = f.read().strip()

        if content != rev_contents[rev]:

            rev_ids = dict((rev_contents[k], k) for k in rev_contents)

            found_rev = rev_ids[content]

            raise AssertionError("expected rev %0.1f, found rev %0.1f"

                                 % (rev, found_rev))

    def setUp(self):

        """Set up tests."""

        # These tests assume a branch with five revisions, and

        # a branch from version 1 containing three revisions

        # merged at version 2.

        TestCaseWithTransport.setUp(self)

        self.tree = self.make_branch_and_tree(".")

        test_file = open("test_file", "w")

        test_file.write("one")

        test_file.close()

        self.tree.add(self.tree.relpath(os.path.join(os.getcwd(),

                                                     'test_file')))

        test_file_append = open("test_file_append", "a")

        test_file_append.write("one\n")

        test_file_append.close()

        self.tree.add(self.tree.relpath(os.path.join(os.getcwd(),

                                                     'test_file_append')))

        self.tree.commit(message="add test files")

        ControlDir.open(".").sprout("../temp-clone")

        clone_bzrdir = ControlDir.open("../temp-clone")

        clone_tree = clone_bzrdir.open_workingtree()

        for content in ["one dot one", "one dot two", "one dot three"]:

            test_file = open("../temp-clone/test_file", "w")

            test_file.write(content)

            test_file.close()

            test_file_append = open("../temp-clone/test_file_append", "a")

            test_file_append.write(content + "\n")

            test_file_append.close()

            clone_tree.commit(message="make branch test change")

            saved_subtree_revid = clone_tree.branch.last_revision()

        self.tree.merge_from_branch(clone_tree.branch)

        test_file = open("test_file", "w")

        test_file.write("two")

        test_file.close()

        test_file_append = open("test_file_append", "a")

        test_file_append.write("two\n")

        test_file_append.close()

        self.tree.commit(message="merge external branch")

        shutil.rmtree("../temp-clone")

        self.subtree_rev = saved_subtree_revid

        file_contents = ["three", "four", "five"]

        for content in file_contents:

            test_file = open("test_file", "w")

            test_file.write(content)

            test_file.close()

            test_file_append = open("test_file_append", "a")

            test_file_append.write(content + "\n")

            test_file_append.close()

            self.tree.commit(message="make test change")

class BisectHarnessTests(BisectTestCase):

    """Tests for the harness itself."""

    def testLastRev(self):

        """Test that the last revision is correct."""

        repo = self.tree.branch.repository

        top_revtree = repo.revision_tree(self.tree.last_revision())

        top_revtree.lock_read()

        top_file = top_revtree.get_file("test_file")

        test_content = top_file.read().strip()

        top_file.close()

        top_revtree.unlock()

        self.assertEqual(test_content, b"five")

    def testSubtreeRev(self):

        """Test that the last revision in a subtree is correct."""

        repo = self.tree.branch.repository

        sub_revtree = repo.revision_tree(self.subtree_rev)

        sub_revtree.lock_read()

        with sub_revtree.get_file("test_file") as sub_file:

            test_content = sub_file.read().strip()

        sub_revtree.unlock()

        self.assertEqual(test_content, b"one dot three")

class BisectCurrentUnitTests(BisectTestCase):

    """Test the BisectCurrent class."""

    def testShowLog(self):

        """Test that the log can be shown."""

        # Not a very good test; just makes sure the code doesn't fail,

        # not that the output makes any sense.

        sio = StringIO()

        bisect.BisectCurrent(self.tree.controldir).show_rev_log(outf=sio)

    def testShowLogSubtree(self):

        """Test that a subtree's log can be shown."""

        current = bisect.BisectCurrent(self.tree.controldir)

        current.switch(self.subtree_rev)

        sio = StringIO()

        current.show_rev_log(outf=sio)

    def testSwitchVersions(self):

        """Test switching versions."""

        current = bisect.BisectCurrent(self.tree.controldir)

        self.assertRevno(5)

        current.switch(4)

        self.assertRevno(4)

    def testReset(self):

        """Test resetting the working tree to a non-bisected state."""

        current = bisect.BisectCurrent(self.tree.controldir)

        current.switch(4)

        current.reset()

        self.assertRevno(5)

        self.assertFalse(os.path.exists(

            os.path.join('.bzr', bisect.BISECT_REV_PATH)))

    def testIsMergePoint(self):

        """Test merge point detection."""

        current = bisect.BisectCurrent(self.tree.controldir)

        self.assertRevno(5)

        self.assertFalse(current.is_merge_point())

        current.switch(2)

        self.assertTrue(current.is_merge_point())

class BisectLogUnitTests(BisectTestCase):

    """Test the BisectLog class."""

    def testCreateBlank(self):

        """Test creation of new log."""

        bisect_log = bisect.BisectLog(self.tree.controldir)

        bisect_log.save()

        self.assertTrue(

            os.path.exists(os.path.join('.bzr', bisect.BISECT_INFO_PATH)))

    def testLoad(self):

        """Test loading a log."""

        preloaded_log = open(os.path.join(

            '.bzr', bisect.BISECT_INFO_PATH), "w")

        preloaded_log.write("rev1 yes\nrev2 no\nrev3 yes\n")

        preloaded_log.close()

        bisect_log = bisect.BisectLog(self.tree.controldir)

        self.assertEqual(len(bisect_log._items), 3)

        self.assertEqual(bisect_log._items[0], (b"rev1", "yes"))

        self.assertEqual(bisect_log._items[1], (b"rev2", "no"))

        self.assertEqual(bisect_log._items[2], (b"rev3", "yes"))

    def testSave(self):

        """Test saving the log."""

        bisect_log = bisect.BisectLog(self.tree.controldir)

        bisect_log._items = [

            (b"rev1", "yes"), (b"rev2", "no"), (b"rev3", "yes")]

        bisect_log.save()

        with open(os.path.join('.bzr', bisect.BISECT_INFO_PATH), 'rb') as logfile:

            self.assertEqual(logfile.read(), b"rev1 yes\nrev2 no\nrev3 yes\n")