Mercurial > hg
view tests/test-rust-revlog.py @ 51316:178e50edb4f8
changelog: stop useless enforcing split at the end of transaction
Changelogs are no longer created inline, and existing changelogs are
automatically split. Since we now enforce splitting at the start of any write,
we don't need to enforce splitting at the end of the transaction.
This has the nice side effect of killing the only user of "side_write".
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Thu, 11 Jan 2024 16:35:52 +0100 |
parents | f94c10334bcb |
children |
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import struct import unittest from mercurial.node import hex try: from mercurial import rustext rustext.__name__ # trigger immediate actual import except ImportError: rustext = None else: from mercurial.rustext import revlog # this would fail already without appropriate ancestor.__package__ from mercurial.rustext.ancestor import LazyAncestors from mercurial.testing import revlog as revlogtesting header = struct.unpack(">I", revlogtesting.data_non_inlined[:4])[0] @unittest.skipIf( rustext is None, "rustext module revlog relies on is not available", ) class RustRevlogIndexTest(revlogtesting.RevlogBasedTestBase): def test_heads(self): idx = self.parseindex() rustidx = revlog.Index(revlogtesting.data_non_inlined, header) self.assertEqual(rustidx.headrevs(), idx.headrevs()) def test_len(self): idx = self.parseindex() rustidx = revlog.Index(revlogtesting.data_non_inlined, header) self.assertEqual(len(rustidx), len(idx)) def test_ancestors(self): rustidx = revlog.Index(revlogtesting.data_non_inlined, header) lazy = LazyAncestors(rustidx, [3], 0, True) # we have two more references to the index: # - in its inner iterator for __contains__ and __bool__ # - in the LazyAncestors instance itself (to spawn new iterators) self.assertTrue(2 in lazy) self.assertTrue(bool(lazy)) self.assertEqual(list(lazy), [3, 2, 1, 0]) # a second time to validate that we spawn new iterators self.assertEqual(list(lazy), [3, 2, 1, 0]) # let's check bool for an empty one self.assertFalse(LazyAncestors(rustidx, [0], 0, False)) @unittest.skipIf( rustext is None, "rustext module revlog relies on is not available", ) class RustRevlogNodeTreeClassTest(revlogtesting.RustRevlogBasedTestBase): def test_standalone_nodetree(self): idx = self.parserustindex() nt = revlog.NodeTree(idx) for i in range(4): nt.insert(i) bin_nodes = [entry[7] for entry in idx] hex_nodes = [hex(n) for n in bin_nodes] for i, node in enumerate(hex_nodes): self.assertEqual(nt.prefix_rev_lookup(node), i) self.assertEqual(nt.prefix_rev_lookup(node[:5]), i) # all 4 revisions in idx (standard data set) have different # first nybbles in their Node IDs, # hence `nt.shortest()` should return 1 for them, except when # the leading nybble is 0 (ambiguity with NULL_NODE) for i, (bin_node, hex_node) in enumerate(zip(bin_nodes, hex_nodes)): shortest = nt.shortest(bin_node) expected = 2 if hex_node[0] == ord('0') else 1 self.assertEqual(shortest, expected) self.assertEqual(nt.prefix_rev_lookup(hex_node[:shortest]), i) # test invalidation (generation poisoning) detection del idx[3] self.assertTrue(nt.is_invalidated()) if __name__ == '__main__': import silenttestrunner silenttestrunner.main(__name__)