1 // Copyright 2021 Google LLC
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
15 #include "fcp/tracing/tracing_context_utils.h"
16
17 #include <iostream>
18 #include <optional>
19 #include <ostream>
20
21 #include "gmock/gmock.h"
22 #include "gtest/gtest.h"
23 #include "fcp/tracing/test/test_api_message.pb.h"
24
25 namespace fcp {
26 namespace {
27
28 using fcp::tracing::test::ApiMessageWithContext;
29 using fcp::tracing::test::ApiMessageWithContextBytes;
30 using fcp::tracing::test::ApiMessageWithContextInt;
31 using fcp::tracing::test::ApiMessageWithoutContext;
32 using fcp::tracing::test::TestTracingContext;
33
TEST(Tracing,SetAndRetrieveContextOnMessage)34 TEST(Tracing, SetAndRetrieveContextOnMessage) {
35 TestTracingContext original_context;
36 original_context.set_first(222);
37 original_context.set_second(333);
38
39 ApiMessageWithContext message;
40 fcp::tracing_internal::SetTracingContextOnMessage(original_context, message);
41
42 TestTracingContext context =
43 fcp::tracing_internal::GetContextFromMessage<TestTracingContext>(message);
44
45 EXPECT_EQ(context.first(), 222);
46 EXPECT_EQ(context.second(), 333);
47 }
48
TEST(Tracing,SetAndRetrieveContextBytesOnMessage)49 TEST(Tracing, SetAndRetrieveContextBytesOnMessage) {
50 TestTracingContext original_context;
51 original_context.set_first(222);
52 original_context.set_second(333);
53
54 ApiMessageWithContextBytes message;
55 fcp::tracing_internal::SetTracingContextOnMessage(original_context, message);
56
57 TestTracingContext context =
58 fcp::tracing_internal::GetContextFromMessage<TestTracingContext>(message);
59
60 EXPECT_EQ(context.first(), 222);
61 EXPECT_EQ(context.second(), 333);
62 }
63
TEST(Tracing,MessageWithoutContext)64 TEST(Tracing, MessageWithoutContext) {
65 TestTracingContext original_context;
66 original_context.set_first(222);
67 ApiMessageWithoutContext message;
68 // Setting the context on a message without it will be a no-op.
69 fcp::tracing_internal::SetTracingContextOnMessage(original_context, message);
70
71 TestTracingContext context =
72 fcp::tracing_internal::GetContextFromMessage<TestTracingContext>(message);
73
74 EXPECT_EQ(context.first(), 0);
75 EXPECT_EQ(context.second(), 0);
76 }
77
TEST(Tracing,SetTracingContextOnMessageWithIntContextCheckFailure)78 TEST(Tracing, SetTracingContextOnMessageWithIntContextCheckFailure) {
79 TestTracingContext original_context;
80 ApiMessageWithContextInt message;
81 // Setting the context on a message with the wrong context type will be a
82 // no-op.
83 EXPECT_DEATH(fcp::tracing_internal::SetTracingContextOnMessage(
84 original_context, message),
85 fcp::tracing_internal::kContextWrongTypeMessage);
86 }
87
TEST(Tracing,GetTracingContextFromMessageWithIntContextCheckFailure)88 TEST(Tracing, GetTracingContextFromMessageWithIntContextCheckFailure) {
89 ApiMessageWithContextInt message;
90 EXPECT_DEATH(
91 TestTracingContext context =
92 fcp::tracing_internal::GetContextFromMessage<TestTracingContext>(
93 message),
94 fcp::tracing_internal::kContextWrongTypeMessage);
95 }
96
97 } // namespace
98 } // namespace fcp
99