tests/test-lfs-pointer.py

py3: catch TypeError during template operations

Two places in this code Python 3 changed from raising ValueError
to TypeError. So catch the addition exceptions.

IMO this code might be better off performing type sniffing. But
I'm not sure the implications of changing that.

Differential Revision: https://phab.mercurial-scm.org/D2156

from __future__ import absolute_import, print_function

import os
import sys

# make it runnable using python directly without run-tests.py
sys.path[0:0] = [os.path.join(os.path.dirname(__file__), '..')]

from hgext.lfs import pointer

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'))