Mercurial > hg
view tests/test-ancestor.py @ 19984:7d5e7799a29f stable
rebase: fix rebase aborts when 'tip-1' is public (issue4082)
When aborting a rebase where tip-1 is public, rebase would fail to undo the merge
state. This caused unexpected dirstate parents and also caused unshelve to
become unabortable (since it uses rebase under the hood).
The problem was that rebase uses -2 as a marker rev, and when it checked for
immutableness during the abort, -2 got resolved to the second to last entry in
the phase cache.
Adds a test for the fix. Add exception to phase code to prevent this in the
future.
author | Durham Goode <durham@fb.com> |
---|---|
date | Mon, 04 Nov 2013 19:59:00 -0800 |
parents | 2fa303619b4d |
children | 7731a2281cf0 |
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from mercurial import ancestor, commands, hg, ui, util # graph is a dict of child->parent adjacency lists for this graph: # o 13 # | # | o 12 # | | # | | o 11 # | | |\ # | | | | o 10 # | | | | | # | o---+ | 9 # | | | | | # o | | | | 8 # / / / / # | | o | 7 # | | | | # o---+ | 6 # / / / # | | o 5 # | |/ # | o 4 # | | # o | 3 # | | # | o 2 # |/ # o 1 # | # o 0 graph = {0: [-1], 1: [0], 2: [1], 3: [1], 4: [2], 5: [4], 6: [4], 7: [4], 8: [-1], 9: [6, 7], 10: [5], 11: [3, 7], 12: [9], 13: [8]} pfunc = graph.get class mockchangelog(object): parentrevs = graph.get def runmissingancestors(revs, bases): print "%% ancestors of %s and not of %s" % (revs, bases) print ancestor.missingancestors(revs, bases, pfunc) def test_missingancestors(): # Empty revs runmissingancestors([], [1]) runmissingancestors([], []) # If bases is empty, it's the same as if it were [nullrev] runmissingancestors([12], []) # Trivial case: revs == bases runmissingancestors([0], [0]) runmissingancestors([4, 5, 6], [6, 5, 4]) # With nullrev runmissingancestors([-1], [12]) runmissingancestors([12], [-1]) # 9 is a parent of 12. 7 is a parent of 9, so an ancestor of 12. 6 is an # ancestor of 12 but not of 7. runmissingancestors([12], [9]) runmissingancestors([9], [12]) runmissingancestors([12, 9], [7]) runmissingancestors([7, 6], [12]) # More complex cases runmissingancestors([10], [11, 12]) runmissingancestors([11], [10]) runmissingancestors([11], [10, 12]) runmissingancestors([12], [10]) runmissingancestors([12], [11]) runmissingancestors([10, 11, 12], [13]) runmissingancestors([13], [10, 11, 12]) def genlazyancestors(revs, stoprev=0, inclusive=False): print ("%% lazy ancestor set for %s, stoprev = %s, inclusive = %s" % (revs, stoprev, inclusive)) return ancestor.lazyancestors(mockchangelog, revs, stoprev=stoprev, inclusive=inclusive) def printlazyancestors(s, l): print [n for n in l if n in s] def test_lazyancestors(): # Empty revs s = genlazyancestors([]) printlazyancestors(s, [3, 0, -1]) # Standard example s = genlazyancestors([11, 13]) printlazyancestors(s, [11, 13, 7, 9, 8, 3, 6, 4, 1, -1, 0]) # Including revs s = genlazyancestors([11, 13], inclusive=True) printlazyancestors(s, [11, 13, 7, 9, 8, 3, 6, 4, 1, -1, 0]) # Test with stoprev s = genlazyancestors([11, 13], stoprev=6) printlazyancestors(s, [11, 13, 7, 9, 8, 3, 6, 4, 1, -1, 0]) s = genlazyancestors([11, 13], stoprev=6, inclusive=True) printlazyancestors(s, [11, 13, 7, 9, 8, 3, 6, 4, 1, -1, 0]) # The C gca algorithm requires a real repo. These are textual descriptions of # dags that have been known to be problematic. dagtests = [ '+2*2*2/*3/2', '+3*3/*2*2/*4*4/*4/2*4/2*2', ] def test_gca(): u = ui.ui() for i, dag in enumerate(dagtests): repo = hg.repository(u, 'gca%d' % i, create=1) cl = repo.changelog if not util.safehasattr(cl.index, 'ancestors'): # C version not available return commands.debugbuilddag(u, repo, dag) # Compare the results of the Python and C versions. This does not # include choosing a winner when more than one gca exists -- we make # sure both return exactly the same set of gcas. for a in cl: for b in cl: cgcas = sorted(cl.index.ancestors(a, b)) pygcas = sorted(ancestor.ancestors(cl.parentrevs, a, b)) if cgcas != pygcas: print "test_gca: for dag %s, gcas for %d, %d:" % (dag, a, b) print " C returned: %s" % cgcas print " Python returned: %s" % pygcas if __name__ == '__main__': test_missingancestors() test_lazyancestors() test_gca()