1# Copyright 2016 gRPC authors.
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#     http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14"""Test of RPCs made against gRPC Python's application-layer API."""
15
16import unittest
17import logging
18
19import grpc
20
21from tests.unit.framework.common import test_constants
22
23_SERIALIZE_REQUEST = lambda bytestring: bytestring * 2
24_DESERIALIZE_REQUEST = lambda bytestring: bytestring[len(bytestring) // 2:]
25_SERIALIZE_RESPONSE = lambda bytestring: bytestring * 3
26_DESERIALIZE_RESPONSE = lambda bytestring: bytestring[:len(bytestring) // 3]
27
28_UNARY_UNARY = '/test/UnaryUnary'
29_UNARY_STREAM = '/test/UnaryStream'
30_STREAM_UNARY = '/test/StreamUnary'
31_STREAM_STREAM = '/test/StreamStream'
32
33
34def _unary_unary_multi_callable(channel):
35    return channel.unary_unary(_UNARY_UNARY)
36
37
38def _unary_stream_multi_callable(channel):
39    return channel.unary_stream(_UNARY_STREAM,
40                                request_serializer=_SERIALIZE_REQUEST,
41                                response_deserializer=_DESERIALIZE_RESPONSE)
42
43
44def _stream_unary_multi_callable(channel):
45    return channel.stream_unary(_STREAM_UNARY,
46                                request_serializer=_SERIALIZE_REQUEST,
47                                response_deserializer=_DESERIALIZE_RESPONSE)
48
49
50def _stream_stream_multi_callable(channel):
51    return channel.stream_stream(_STREAM_STREAM)
52
53
54class InvalidMetadataTest(unittest.TestCase):
55
56    def setUp(self):
57        self._channel = grpc.insecure_channel('localhost:8080')
58        self._unary_unary = _unary_unary_multi_callable(self._channel)
59        self._unary_stream = _unary_stream_multi_callable(self._channel)
60        self._stream_unary = _stream_unary_multi_callable(self._channel)
61        self._stream_stream = _stream_stream_multi_callable(self._channel)
62
63    def tearDown(self):
64        self._channel.close()
65
66    def testUnaryRequestBlockingUnaryResponse(self):
67        request = b'\x07\x08'
68        metadata = (('InVaLiD', 'UnaryRequestBlockingUnaryResponse'),)
69        expected_error_details = "metadata was invalid: %s" % metadata
70        with self.assertRaises(ValueError) as exception_context:
71            self._unary_unary(request, metadata=metadata)
72        self.assertIn(expected_error_details, str(exception_context.exception))
73
74    def testUnaryRequestBlockingUnaryResponseWithCall(self):
75        request = b'\x07\x08'
76        metadata = (('InVaLiD', 'UnaryRequestBlockingUnaryResponseWithCall'),)
77        expected_error_details = "metadata was invalid: %s" % metadata
78        with self.assertRaises(ValueError) as exception_context:
79            self._unary_unary.with_call(request, metadata=metadata)
80        self.assertIn(expected_error_details, str(exception_context.exception))
81
82    def testUnaryRequestFutureUnaryResponse(self):
83        request = b'\x07\x08'
84        metadata = (('InVaLiD', 'UnaryRequestFutureUnaryResponse'),)
85        expected_error_details = "metadata was invalid: %s" % metadata
86        with self.assertRaises(ValueError) as exception_context:
87            self._unary_unary.future(request, metadata=metadata)
88
89    def testUnaryRequestStreamResponse(self):
90        request = b'\x37\x58'
91        metadata = (('InVaLiD', 'UnaryRequestStreamResponse'),)
92        expected_error_details = "metadata was invalid: %s" % metadata
93        with self.assertRaises(ValueError) as exception_context:
94            self._unary_stream(request, metadata=metadata)
95        self.assertIn(expected_error_details, str(exception_context.exception))
96
97    def testStreamRequestBlockingUnaryResponse(self):
98        request_iterator = (
99            b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH))
100        metadata = (('InVaLiD', 'StreamRequestBlockingUnaryResponse'),)
101        expected_error_details = "metadata was invalid: %s" % metadata
102        with self.assertRaises(ValueError) as exception_context:
103            self._stream_unary(request_iterator, metadata=metadata)
104        self.assertIn(expected_error_details, str(exception_context.exception))
105
106    def testStreamRequestBlockingUnaryResponseWithCall(self):
107        request_iterator = (
108            b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH))
109        metadata = (('InVaLiD', 'StreamRequestBlockingUnaryResponseWithCall'),)
110        expected_error_details = "metadata was invalid: %s" % metadata
111        multi_callable = _stream_unary_multi_callable(self._channel)
112        with self.assertRaises(ValueError) as exception_context:
113            multi_callable.with_call(request_iterator, metadata=metadata)
114        self.assertIn(expected_error_details, str(exception_context.exception))
115
116    def testStreamRequestFutureUnaryResponse(self):
117        request_iterator = (
118            b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH))
119        metadata = (('InVaLiD', 'StreamRequestFutureUnaryResponse'),)
120        expected_error_details = "metadata was invalid: %s" % metadata
121        with self.assertRaises(ValueError) as exception_context:
122            self._stream_unary.future(request_iterator, metadata=metadata)
123        self.assertIn(expected_error_details, str(exception_context.exception))
124
125    def testStreamRequestStreamResponse(self):
126        request_iterator = (
127            b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH))
128        metadata = (('InVaLiD', 'StreamRequestStreamResponse'),)
129        expected_error_details = "metadata was invalid: %s" % metadata
130        with self.assertRaises(ValueError) as exception_context:
131            self._stream_stream(request_iterator, metadata=metadata)
132        self.assertIn(expected_error_details, str(exception_context.exception))
133
134    def testInvalidMetadata(self):
135        self.assertRaises(TypeError, self._unary_unary, b'', metadata=42)
136
137
138if __name__ == '__main__':
139    logging.basicConfig()
140    unittest.main(verbosity=2)
141