141 lines
3.6 KiB
Python
Executable File
141 lines
3.6 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright (C) 2016 g10 Code GmbH
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#
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# This file is part of GPGME.
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#
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# GPGME is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# GPGME is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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# Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this program; if not, see <http://www.gnu.org/licenses/>.
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from __future__ import absolute_import, print_function, unicode_literals
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import io
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import os
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import tempfile
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import gpg
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import support
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_ = support # to appease pyflakes.
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del absolute_import, print_function, unicode_literals
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data = gpg.Data('Hello world!')
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assert data.read() == b'Hello world!'
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assert data.read() == b''
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data.seek(0, os.SEEK_SET)
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assert data.read() == b'Hello world!'
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assert data.read() == b''
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data = gpg.Data(b'Hello world!')
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assert data.read() == b'Hello world!'
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data = gpg.Data(b'Hello world!', copy=False)
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assert data.read() == b'Hello world!'
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data = gpg.Data()
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data.write('Hello world!')
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data.seek(0, os.SEEK_SET)
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assert data.read() == b'Hello world!'
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data = gpg.Data()
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data.write(b'Hello world!')
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data.seek(0, os.SEEK_SET)
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assert data.read() == b'Hello world!'
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data = gpg.Data()
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data.write(b'Hello world!')
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# We expect the second argument to default to SEEK_SET
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data.seek(0)
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assert data.read() == b'Hello world!'
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binjunk = bytes(range(256))
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data = gpg.Data()
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data.write(binjunk)
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data.seek(0, os.SEEK_SET)
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assert data.read() == binjunk
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data = gpg.Data()
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data.set_file_name("foobar")
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assert data.get_file_name() == "foobar"
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# Test reading from an existing file.
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with tempfile.NamedTemporaryFile() as tmp:
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tmp.write(binjunk)
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tmp.flush()
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tmp.seek(0)
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# Open using name.
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data = gpg.Data(file=tmp.name)
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assert data.read() == binjunk
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# Open using name, without copying.
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if False:
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# delayed reads are not yet supported
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data = gpg.Data(file=tmp.name, copy=False)
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assert data.read() == binjunk
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# Open using stream.
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tmp.seek(0)
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data = gpg.Data(file=tmp)
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assert data.read() == binjunk
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# Open using stream, offset, and length.
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data = gpg.Data(file=tmp, offset=0, length=42)
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assert data.read() == binjunk[:42]
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# Open using name, offset, and length.
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data = gpg.Data(file=tmp.name, offset=23, length=42)
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assert data.read() == binjunk[23:23 + 42]
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# Test callbacks.
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class DataObject(object):
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def __init__(self):
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self.buffer = io.BytesIO()
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self.released = False
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def read(self, amount, hook=None):
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assert not self.released
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return self.buffer.read(amount)
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def write(self, data, hook=None):
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assert not self.released
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return self.buffer.write(data)
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def seek(self, offset, whence, hook=None):
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assert not self.released
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return self.buffer.seek(offset, whence)
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def release(self, hook=None):
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assert not self.released
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self.released = True
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do = DataObject()
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cookie = object()
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data = gpg.Data(cbs=(do.read, do.write, do.seek, do.release, cookie))
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data.write('Hello world!')
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data.seek(0, os.SEEK_SET)
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assert data.read() == b'Hello world!'
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del data
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assert do.released
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# Again, without the cookie.
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do = DataObject()
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data = gpg.Data(cbs=(do.read, do.write, do.seek, do.release))
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data.write('Hello world!')
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data.seek(0, os.SEEK_SET)
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assert data.read() == b'Hello world!'
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del data
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assert do.released
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