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from __future__ import absolute_import, print_function
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import os
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import tempfile
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from mercurial import util
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from hgext.fastannotate import error, revmap
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def genhsh(i):
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return chr(i) + b'\0' * 19
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def gettemppath():
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fd, path = tempfile.mkstemp()
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os.close(fd)
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os.unlink(path)
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return path
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def ensure(condition):
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if not condition:
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raise RuntimeError('Unexpected')
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def testbasicreadwrite():
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path = gettemppath()
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rm = revmap.revmap(path)
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ensure(rm.maxrev == 0)
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for i in xrange(5):
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ensure(rm.rev2hsh(i) is None)
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ensure(rm.hsh2rev(b'\0' * 20) is None)
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paths = ['', 'a', None, 'b', 'b', 'c', 'c', None, 'a', 'b', 'a', 'a']
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for i in xrange(1, 5):
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ensure(rm.append(genhsh(i), sidebranch=(i & 1), path=paths[i]) == i)
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ensure(rm.maxrev == 4)
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for i in xrange(1, 5):
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ensure(rm.hsh2rev(genhsh(i)) == i)
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ensure(rm.rev2hsh(i) == genhsh(i))
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# re-load and verify
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rm.flush()
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rm = revmap.revmap(path)
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ensure(rm.maxrev == 4)
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for i in xrange(1, 5):
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ensure(rm.hsh2rev(genhsh(i)) == i)
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ensure(rm.rev2hsh(i) == genhsh(i))
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ensure(bool(rm.rev2flag(i) & revmap.sidebranchflag) == bool(i & 1))
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# append without calling save() explicitly
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for i in xrange(5, 12):
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ensure(rm.append(genhsh(i), sidebranch=(i & 1), path=paths[i],
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flush=True) == i)
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# re-load and verify
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rm = revmap.revmap(path)
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ensure(rm.maxrev == 11)
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for i in xrange(1, 12):
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ensure(rm.hsh2rev(genhsh(i)) == i)
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ensure(rm.rev2hsh(i) == genhsh(i))
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ensure(rm.rev2path(i) == paths[i] or paths[i - 1])
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ensure(bool(rm.rev2flag(i) & revmap.sidebranchflag) == bool(i & 1))
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os.unlink(path)
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# missing keys
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ensure(rm.rev2hsh(12) is None)
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ensure(rm.rev2hsh(0) is None)
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ensure(rm.rev2hsh(-1) is None)
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ensure(rm.rev2flag(12) is None)
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ensure(rm.rev2path(12) is None)
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ensure(rm.hsh2rev(b'\1' * 20) is None)
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# illformed hash (not 20 bytes)
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try:
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rm.append(b'\0')
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ensure(False)
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except Exception:
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pass
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def testcorruptformat():
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path = gettemppath()
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# incorrect header
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with open(path, 'w') as f:
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f.write(b'NOT A VALID HEADER')
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try:
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revmap.revmap(path)
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ensure(False)
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except error.CorruptedFileError:
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pass
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# rewrite the file
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os.unlink(path)
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rm = revmap.revmap(path)
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rm.append(genhsh(0), flush=True)
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rm = revmap.revmap(path)
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ensure(rm.maxrev == 1)
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# corrupt the file by appending a byte
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size = os.stat(path).st_size
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with open(path, 'a') as f:
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f.write('\xff')
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try:
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revmap.revmap(path)
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ensure(False)
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except error.CorruptedFileError:
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pass
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# corrupt the file by removing the last byte
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ensure(size > 0)
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with open(path, 'w') as f:
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f.truncate(size - 1)
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try:
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revmap.revmap(path)
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ensure(False)
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except error.CorruptedFileError:
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pass
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os.unlink(path)
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def testcopyfrom():
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path = gettemppath()
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rm = revmap.revmap(path)
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for i in xrange(1, 10):
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ensure(rm.append(genhsh(i), sidebranch=(i & 1), path=str(i // 3)) == i)
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rm.flush()
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# copy rm to rm2
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rm2 = revmap.revmap()
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rm2.copyfrom(rm)
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path2 = gettemppath()
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rm2.path = path2
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rm2.flush()
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# two files should be the same
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ensure(len(set(util.readfile(p) for p in [path, path2])) == 1)
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os.unlink(path)
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os.unlink(path2)
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class fakefctx(object):
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def __init__(self, node, path=None):
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self._node = node
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self._path = path
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def node(self):
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return self._node
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def path(self):
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return self._path
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def testcontains():
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path = gettemppath()
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rm = revmap.revmap(path)
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for i in xrange(1, 5):
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ensure(rm.append(genhsh(i), sidebranch=(i & 1)) == i)
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for i in xrange(1, 5):
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ensure(((genhsh(i), None) in rm) == ((i & 1) == 0))
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ensure((fakefctx(genhsh(i)) in rm) == ((i & 1) == 0))
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for i in xrange(5, 10):
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ensure(fakefctx(genhsh(i)) not in rm)
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ensure((genhsh(i), None) not in rm)
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# "contains" checks paths
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rm = revmap.revmap()
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for i in xrange(1, 5):
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ensure(rm.append(genhsh(i), path=str(i // 2)) == i)
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for i in xrange(1, 5):
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ensure(fakefctx(genhsh(i), path=str(i // 2)) in rm)
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ensure(fakefctx(genhsh(i), path='a') not in rm)
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def testlastnode():
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path = gettemppath()
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ensure(revmap.getlastnode(path) is None)
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rm = revmap.revmap(path)
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ensure(revmap.getlastnode(path) is None)
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for i in xrange(1, 10):
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hsh = genhsh(i)
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rm.append(hsh, path=str(i // 2), flush=True)
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ensure(revmap.getlastnode(path) == hsh)
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rm2 = revmap.revmap(path)
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ensure(rm2.rev2hsh(rm2.maxrev) == hsh)
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testbasicreadwrite()
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testcorruptformat()
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testcopyfrom()
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testcontains()
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testlastnode()
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