/brz/remove-bazaar

"""Black-box tests for bzr missing.

"""

import os

from bzrlib.branch import Branch

from bzrlib.tests import TestCaseInTempDir

class TestMissing(TestCaseInTempDir):

    def test_missing(self):

        missing = "You are missing 1 revision(s):"

        # create a source branch

        os.mkdir('a')

        os.chdir('a')

        self.capture('init')

        open('a', 'wb').write('initial\n')

        self.capture('add a')

        self.capture('commit -m inital')

        # clone and add a differing revision

        self.capture('branch . ../b')

        os.chdir('../b')

        open('a', 'ab').write('more\n')

        self.capture('commit -m more')

        # run missing in a against b

        os.chdir('../a')

        # this should not require missing to take out a write lock on a 

        # or b. So we take a write lock on both to test that at the same

        # time. This may let the test pass while the default branch is an

        # os-locking branch, but it will trigger failures with lockdir based

        # branches.

        branch_a = Branch.open('.')

        branch_a.lock_write()

        branch_b = Branch.open('../b')

        branch_b.lock_write()

        out,err = self.run_bzr('missing', '../b', retcode=1)

        lines = out.splitlines()

        # we're missing the extra revision here

        self.assertEqual(missing, lines[0])

        # and we expect 8 lines of output which we trust at the moment to be

        # good.

        self.assertEqual(8, len(lines))

        # we do not expect any error output.

        self.assertEqual('', err)

        # unlock the branches for the rest of the test

        branch_a.unlock()

        branch_b.unlock()

        # get extra revision from b

        self.capture('merge ../b')

        self.capture('commit -m merge')

        # compare again, but now we have the 'merge' commit extra

        lines = self.capture('missing ../b', retcode=1).splitlines()

        self.assertEqual("You have 1 extra revision(s):", lines[0])

        self.assertEqual(8, len(lines))

        lines2 = self.capture('missing ../b --mine-only', retcode=1)

        lines2 = lines2.splitlines()

        self.assertEqual(lines, lines2)

        lines3 = self.capture('missing ../b --theirs-only', retcode=1)

        lines3 = lines3.splitlines()

        self.assertEqual(0, len(lines3))

        # relative to a, missing the 'merge' commit 

        os.chdir('../b')

        lines = self.capture('missing ../a', retcode=1).splitlines()

        self.assertEqual(missing, lines[0])

        self.assertEqual(8, len(lines))

        lines2 = self.capture('missing ../a --theirs-only', retcode=1)

        lines2 = lines2.splitlines()

        self.assertEqual(lines, lines2)

        lines3 = self.capture('missing ../a --mine-only', retcode=1)

        lines3 = lines3.splitlines()

        self.assertEqual(0, len(lines3))

        lines4 = self.capture('missing ../a --short', retcode=1)

        lines4 = lines4.splitlines()

        self.assertEqual(4, len(lines4))

        lines5 = self.capture('missing ../a --line', retcode=1)

        lines5 = lines5.splitlines()

        self.assertEqual(2, len(lines5))

        lines6 = self.capture('missing ../a --reverse', retcode=1)

        lines6 = lines6.splitlines()

        self.assertEqual(lines6, lines)

        lines7 = self.capture('missing ../a --show-ids', retcode=1)

        lines7 = lines7.splitlines()

        self.assertEqual(11, len(lines7))

        lines8 = self.capture('missing ../a --verbose', retcode=1)

        lines8 = lines8.splitlines()

        self.assertEqual("modified:", lines8[-2])

        self.assertEqual("  a", lines8[-1])

        # after a pull we're back on track

        self.capture('pull')

        self.assertEqual("Branches are up to date.\n", 

                         self.capture('missing ../a'))