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1#!/usr/bin/env ruby
2#
3# Protocol Buffers - Google's data interchange format
4# Copyright 2008 Google Inc.  All rights reserved.
5# https://developers.google.com/protocol-buffers/
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions are
9# met:
10#
11#     * Redistributions of source code must retain the above copyright
12# notice, this list of conditions and the following disclaimer.
13#     * Redistributions in binary form must reproduce the above
14# copyright notice, this list of conditions and the following disclaimer
15# in the documentation and/or other materials provided with the
16# distribution.
17#     * Neither the name of Google Inc. nor the names of its
18# contributors may be used to endorse or promote products derived from
19# this software without specific prior written permission.
20#
21# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32
33require 'conformance'
34
35$test_count = 0
36$verbose = false
37
38def do_test(request)
39  test_message = Conformance::TestAllTypes.new
40  response = Conformance::ConformanceResponse.new
41
42  begin
43    case request.payload
44    when :protobuf_payload
45      begin
46        test_message =
47          Conformance::TestAllTypes.decode(request.protobuf_payload)
48      rescue Google::Protobuf::ParseError => err
49        response.parse_error = err.message.encode('utf-8')
50        return response
51      end
52
53    when :json_payload
54      begin
55        test_message = Conformance::TestAllTypes.decode_json(request.json_payload)
56      rescue Google::Protobuf::ParseError => err
57        response.parse_error = err.message.encode('utf-8')
58        return response
59      end
60
61    when nil
62      fail "Request didn't have payload"
63    end
64
65    case request.requested_output_format
66    when :UNSPECIFIED
67      fail 'Unspecified output format'
68
69    when :PROTOBUF
70      response.protobuf_payload = test_message.to_proto
71
72    when :JSON
73      response.json_payload = test_message.to_json
74
75    when nil
76      fail "Request didn't have requested output format"
77    end
78  rescue StandardError => err
79    response.runtime_error = err.message.encode('utf-8')
80  end
81
82  response
83end
84
85# Returns true if the test ran successfully, false on legitimate EOF.
86# If EOF is encountered in an unexpected place, raises IOError.
87def do_test_io
88  length_bytes = STDIN.read(4)
89  return false if length_bytes.nil?
90
91  length = length_bytes.unpack('V').first
92  serialized_request = STDIN.read(length)
93  if serialized_request.nil? || serialized_request.length != length
94    fail IOError
95  end
96
97  request = Conformance::ConformanceRequest.decode(serialized_request)
98
99  response = do_test(request)
100
101  serialized_response = Conformance::ConformanceResponse.encode(response)
102  STDOUT.write([serialized_response.length].pack('V'))
103  STDOUT.write(serialized_response)
104  STDOUT.flush
105
106  if $verbose
107    STDERR.puts("conformance_ruby: request=#{request.to_json}, " \
108                                 "response=#{response.to_json}\n")
109  end
110
111  $test_count += 1
112
113  true
114end
115
116loop do
117  unless do_test_io
118    STDERR.puts('conformance_ruby: received EOF from test runner ' \
119                "after #{$test_count} tests, exiting")
120    break
121  end
122end
123