from __future__ import absolute_import, print_function

from edenscm.hgext.lfs import pointer
from hghave import require


def tryparse(text):
    r = {}
    try:
        r = pointer.deserialize(text)
        print("ok")
    except Exception as ex:
        print(ex)
    if r:
        text2 = r.serialize()
        if text2 != text:
            print("reconstructed text differs")
    return r


t = (
    "version https://git-lfs.github.com/spec/v1\n"
    "oid sha256:4d7a214614ab2935c943f9e0ff69d22eadbb8f32b1"
    "258daaa5e2ca24d17e2393\n"
    "size 12345\n"
    "x-foo extra-information\n"
)

tryparse("")
tryparse(t)
tryparse(t.replace("git-lfs", "unknown"))
tryparse(t.replace("v1\n", "v1\n\n"))
tryparse(t.replace("sha256", "ahs256"))
tryparse(t.replace("sha256:", ""))
tryparse(t.replace("12345", "0x12345"))
tryparse(t.replace("extra-information", "extra\0information"))
tryparse(t.replace("extra-information", "extra\ninformation"))
tryparse(t.replace("x-foo", "x_foo"))
tryparse(t.replace("oid", "blobid"))
tryparse(t.replace("size", "size-bytes").replace("oid", "object-id"))