view tests/test_fetch_truncated.py @ 1475:ea4d6142c6d9

maps: do not ask sqlite for row count "SELECT COUNT(1) FROM x" is not O(1) for sqlite and can be slow on large tables. This patch changes the count to be backed by a file instead. The change exposes a risk that the number may become inaccurate, if __setitem__ is called with a same key multiple times. But we don't do that during pull, and only use __len__ to calculate how many revisions pulled, or test if the map is empty. So it would be fine.
author Jun Wu <quark@fb.com>
date Thu, 23 Jun 2016 10:46:07 +0100
parents 825fd4c0396c
children
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import test_util

import unittest

from mercurial import commands
from mercurial import hg

class TestFetchTruncatedHistory(test_util.TestBase):
    stupid_mode_tests = True

    def test_truncated_history(self):
        # Test repository does not follow the usual layout
        repo_path = self.load_svndump('truncatedhistory.svndump')
        svn_url = test_util.fileurl(repo_path + '/project2')
        commands.clone(self.ui(), svn_url, self.wc_path, noupdate=True)
        repo = hg.repository(self.ui(), self.wc_path)

        # We are converting /project2/trunk coming from:
        #
        # Changed paths:
        #     D /project1
        #     A /project2/trunk (from /project1:2)
        #
        # Here a full fetch should be performed since we are starting
        # the conversion on an already filled branch.
        tip = repo['tip']
        files = tip.manifest().keys()
        files.sort()
        self.assertEqual(files, ['a', 'b'])
        self.assertEqual(repo['tip']['a'].data(), 'a\n')