rust: add Vfs trait
This will allow for the use of multiple vfs like in the Python implementation,
as well as hiding the details of the upcoming Python vfs wrapper to hg-core.
import unittest
from mercurial import (
mdiff,
pycompat,
)
from mercurial.dagop import (
annotateline,
_annotatedfile,
_annotatepair,
)
def tr(a):
return [
annotateline(fctx, lineno, skip)
for fctx, lineno, skip in zip(a.fctxs, a.linenos, a.skips)
]
class AnnotateTests(unittest.TestCase):
"""Unit tests for annotate code."""
def testannotatepair(self):
self.maxDiff = None # camelcase-required
oldfctx = b'old'
p1fctx, p2fctx, childfctx = b'p1', b'p2', b'c'
olddata = b'a\nb\n'
p1data = b'a\nb\nc\n'
p2data = b'a\nc\nd\n'
childdata = b'a\nb2\nc\nc2\nd\n'
diffopts = mdiff.diffopts()
def decorate(text, fctx):
n = text.count(b'\n')
linenos = pycompat.rangelist(1, n + 1)
return _annotatedfile([fctx] * n, linenos, [False] * n, text)
# Basic usage
oldann = decorate(olddata, oldfctx)
p1ann = decorate(p1data, p1fctx)
p1ann = _annotatepair([oldann], p1fctx, p1ann, False, diffopts)
self.assertEqual(
tr(p1ann),
[
annotateline(b'old', 1),
annotateline(b'old', 2),
annotateline(b'p1', 3),
],
)
p2ann = decorate(p2data, p2fctx)
p2ann = _annotatepair([oldann], p2fctx, p2ann, False, diffopts)
self.assertEqual(
tr(p2ann),
[
annotateline(b'old', 1),
annotateline(b'p2', 2),
annotateline(b'p2', 3),
],
)
# Test with multiple parents (note the difference caused by ordering)
childann = decorate(childdata, childfctx)
childann = _annotatepair(
[p1ann, p2ann], childfctx, childann, False, diffopts
)
self.assertEqual(
tr(childann),
[
annotateline(b'old', 1),
annotateline(b'c', 2),
annotateline(b'p2', 2),
annotateline(b'c', 4),
annotateline(b'p2', 3),
],
)
childann = decorate(childdata, childfctx)
childann = _annotatepair(
[p2ann, p1ann], childfctx, childann, False, diffopts
)
self.assertEqual(
tr(childann),
[
annotateline(b'old', 1),
annotateline(b'c', 2),
annotateline(b'p1', 3),
annotateline(b'c', 4),
annotateline(b'p2', 3),
],
)
# Test with skipchild (note the difference caused by ordering)
childann = decorate(childdata, childfctx)
childann = _annotatepair(
[p1ann, p2ann], childfctx, childann, True, diffopts
)
self.assertEqual(
tr(childann),
[
annotateline(b'old', 1),
annotateline(b'old', 2, True),
# note that this line was carried over from earlier so it is *not*
# marked skipped
annotateline(b'p2', 2),
annotateline(b'p2', 2, True),
annotateline(b'p2', 3),
],
)
childann = decorate(childdata, childfctx)
childann = _annotatepair(
[p2ann, p1ann], childfctx, childann, True, diffopts
)
self.assertEqual(
tr(childann),
[
annotateline(b'old', 1),
annotateline(b'old', 2, True),
annotateline(b'p1', 3),
annotateline(b'p1', 3, True),
annotateline(b'p2', 3),
],
)
if __name__ == '__main__':
import silenttestrunner
silenttestrunner.main(__name__)