def test_corrupt_index(self, tmpfile):
with io.open(tmpfile, 'wb') as f:
f.write(FORMAT_STRING)
write_i64(f, FORMAT_VERSION)
f.write(b'foo')
pytest.raises_regexp(IOError, 'unable to read index',
File, tmpfile)
def test_read_write_i64():
stream = BytesIO()
write_i64(stream, 10)
assert stream.tell() == 8
stream.seek(0)
assert read_i64(stream) == 10
write_i64(stream, 11, 12, 13)
assert stream.tell() == 32
stream.seek(8)
assert read_i64(stream, 2) == (11, 12)
assert read_i64(stream, 1) == (13,)
assert read_i64(stream, 0) == ()
def test_is_blox(tmpfile):
assert is_blox(tmpfile)
assert not is_blox('/foo/bar/baz')
with io.open(tmpfile, 'wb') as f:
f.write(b'foo')
assert not is_blox(tmpfile)
with io.open(tmpfile, 'wb') as f:
f.write(FORMAT_STRING)
assert not is_blox(tmpfile)
with io.open(tmpfile, 'wb') as f:
f.write(FORMAT_STRING)
write_i64(f, FORMAT_VERSION)
assert is_blox(tmpfile)
def test_format_signature(self, tmpfile):
with io.open(tmpfile, 'wb') as f:
f.write(b'foo')
pytest.raises_regexp(IOError, 'unrecognized file format',
File, tmpfile)
with open(tmpfile, 'wb') as f:
f.write(FORMAT_STRING)
f.write(b'foo')
pytest.raises_regexp(IOError, 'unable to read file version',
File, tmpfile)
with open(tmpfile, 'wb') as f:
f.write(FORMAT_STRING)
write_i64(f, 0)
pytest.raises_regexp(IOError, r'incompatible version: 0 \(expected {}\)'
.format(FORMAT_VERSION), File, tmpfile)
def _write_index(self):
self._handle.truncate()
write_json(self._handle, self._index)
write_i64(self._handle, self._seek)
def _write_signature(self):
self._handle.seek(0)
self._handle.write(FORMAT_STRING)
write_i64(self._handle, FORMAT_VERSION)
self._seek = 16