Imported Upstream version 1.7.0upstream/1.7.0

1 files changed, 84 insertions, 0 deletions

diff --git a/lang/python/tests/t-idiomatic.py b/lang/python/tests/t-idiomatic.py
new file mode 100755
index 0000000..f063206
--- /dev/null
+++ b/lang/python/tests/t-idiomatic.py
@@ -0,0 +1,84 @@
+#!/usr/bin/env python
+
+# Copyright (C) 2016 g10 Code GmbH
+#
+# This file is part of GPGME.
+#
+# GPGME is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# GPGME is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General
+# Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, see <http://www.gnu.org/licenses/>.
+
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
+import sys
+import io
+import os
+import tempfile
+import pyme
+import support
+
+support.init_gpgme(pyme.constants.PROTOCOL_OpenPGP)
+
+# Both Context and Data can be used as context manager:
+with pyme.Context() as c, pyme.Data() as d:
+    c.get_engine_info()
+    d.write(b"Halloechen")
+    leak_c = c
+    leak_d = d
+assert leak_c.wrapped == None
+assert leak_d.wrapped == None
+
+def sign_and_verify(source, signed, sink):
+    with pyme.Context() as c:
+        c.op_sign(source, signed, pyme.constants.SIG_MODE_NORMAL)
+        signed.seek(0, os.SEEK_SET)
+        c.op_verify(signed, None, sink)
+        result = c.op_verify_result()
+
+    assert len(result.signatures) == 1, "Unexpected number of signatures"
+    sig = result.signatures[0]
+    assert sig.summary == (pyme.constants.SIGSUM_VALID |
+                           pyme.constants.SIGSUM_GREEN)
+    assert pyme.errors.GPGMEError(sig.status).getcode() == pyme.errors.NO_ERROR
+
+    sink.seek(0, os.SEEK_SET)
+    assert sink.read() == b"Hallo Leute\n"
+
+# Demonstrate automatic wrapping of file-like objects with 'fileno'
+# method.
+with tempfile.TemporaryFile() as source, \
+     tempfile.TemporaryFile() as signed, \
+     tempfile.TemporaryFile() as sink:
+    source.write(b"Hallo Leute\n")
+    source.seek(0, os.SEEK_SET)
+
+    sign_and_verify(source, signed, sink)
+
+if sys.version_info[0] == 3:
+    # Python2's io.BytesIO does not implement the buffer interface,
+    # hence we cannot use it as sink.
+
+    # XXX: Python's io.BytesIo.truncate does not work as advertised.
+    # http://bugs.python.org/issue27261
+    bio = io.BytesIO()
+    bio.truncate(1)
+    if len(bio.getvalue()) != 1:
+        # This version of Python is affected, preallocate buffer.
+        preallocate = 128*b'\x00'
+    else:
+        preallocate = b''
+
+    # Demonstrate automatic wrapping of objects implementing the buffer
+    # interface, and the use of data objects with the 'with' statement.
+    with io.BytesIO(preallocate) as signed, pyme.Data() as sink:
+        sign_and_verify(b"Hallo Leute\n", signed, sink)