view tests/test_diff.py @ 637:92f4a4b60696

rebuildmeta: optimize by removing quadratic time usage Calling ctx.children() for revision R visits all revisions greater than R. If I remember my algorithmics right, that's O(n^2). Performing an extra traversal, however, is O(n). A quick benchmark on a repository ~20k revisions: before: 445.27s user 1.10s system after: 7.25s user 0.25s system The resulting `svn' directories are exactly the same, and the tests continue to pass.
author Dan Villiom Podlaski Christiansen <danchr@gmail.com>
date Fri, 09 Jul 2010 22:18:27 +0200
parents 537de0300510
children d2ef7220a079
line wrap: on
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import unittest
import tests

from mercurial import ui

from hgsubversion import wrappers

import test_util

expected_diff_output = '''Index: alpha
===================================================================
--- alpha\t(revision 3)
+++ alpha\t(working copy)
@@ -1,1 +1,3 @@
-file: alpha
+alpha
+
+added line
Index: foo
===================================================================
new file mode 100644
--- foo\t(revision 0)
+++ foo\t(working copy)
@@ -0,0 +1,1 @@
+This is missing a newline.
\ No newline at end of file
'''

class DiffTests(test_util.TestBase):
    def test_diff_output(self):
        self._load_fixture_and_fetch('two_revs.svndump')
        self.commitchanges([('foo', 'foo', 'This is missing a newline.'),
                            ('alpha', 'alpha', 'alpha\n\nadded line\n'),
                            ])
        u = ui.ui()
        u.pushbuffer()
        wrappers.diff(lambda x,y,z: None, u, self.repo, svn=True)
        self.assertEqual(u.popbuffer(), expected_diff_output)


def suite():
    all = [unittest.TestLoader().loadTestsFromTestCase(DiffTests),
          ]
    return unittest.TestSuite(all)