python: Improve and test Context.wait.

* lang/python/pyme/core.py (Context.wait): Improve docstring.  As the
context passed to 'gpgme_wait' is never NULL, it is pointless to look
at the returned context.  Always raise exceptions.
* lang/python/tests/Makefile.am (pytests): Add new test.
* lang/python/tests/t-wait.py: New file.

Signed-off-by: Justus Winter <[email protected]>

1 files changed, 42 insertions, 0 deletions

diff --git a/lang/python/tests/t-wait.py b/lang/python/tests/t-wait.py
new file mode 100755
index 00000000..7eaa46ab
--- /dev/null
+++ b/lang/python/tests/t-wait.py
@@ -0,0 +1,42 @@
+#!/usr/bin/env python3
+
+# 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/>.
+
+import time
+from pyme import core, constants, errors
+import support
+
+support.init_gpgme(constants.PROTOCOL_OpenPGP)
+c = core.Context()
+c.set_armor(True)
+
+# Checking a message without a signature.
+sig = core.Data("foo\n")
+text = core.Data()
+c.op_verify_start(sig, None, text)
+
+try:
+    while True:
+        err = c.wait(False)
+        if err:
+            break
+        time.sleep(0.1)
+except Exception as e:
+    assert e.getcode() == errors.NO_DATA
+else:
+    assert False, "Expected an error, got none"