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