1 // Copyright 2020 The Pigweed Authors
3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not
4 // use this file except in compliance with the License. You may obtain a copy of
7 // https://www.apache.org/licenses/LICENSE-2.0
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12 // License for the specific language governing permissions and limitations under
15 #include "pw_protobuf/find.h"
17 #include "gtest/gtest.h"
19 namespace pw::protobuf {
23 constexpr uint8_t encoded_proto[] = {
24 // type=int32, k=1, v=42
26 // type=sint32, k=2, v=-13
28 // type=bool, k=3, v=false
30 // type=double, k=4, v=3.14159
31 0x21, 0x6e, 0x86, 0x1b, 0xf0, 0xf9, 0x21, 0x09, 0x40,
32 // type=fixed32, k=5, v=0xdeadbeef
33 0x2d, 0xef, 0xbe, 0xad, 0xde,
34 // type=string, k=6, v="Hello world"
35 0x32, 0x0b, 'H', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd',
37 // type=message, k=7, len=2
39 // (nested) type=uint32, k=1, v=3
43 TEST(FindDecodeHandler, SingleLevel_FindsExistingField) {
44 CallbackDecoder decoder;
45 FindDecodeHandler finder(3);
47 decoder.set_handler(&finder);
48 decoder.Decode(std::as_bytes(std::span(encoded_proto)));
50 EXPECT_TRUE(finder.found());
51 EXPECT_TRUE(decoder.cancelled());
54 TEST(FindDecodeHandler, SingleLevel_DoesntFindNonExistingField) {
55 CallbackDecoder decoder;
56 FindDecodeHandler finder(8);
58 decoder.set_handler(&finder);
59 decoder.Decode(std::as_bytes(std::span(encoded_proto)));
61 EXPECT_FALSE(finder.found());
62 EXPECT_FALSE(decoder.cancelled());
65 TEST(FindDecodeHandler, MultiLevel_FindsExistingNestedField) {
66 CallbackDecoder decoder;
67 FindDecodeHandler nested_finder(1);
68 FindDecodeHandler finder(7, &nested_finder);
70 decoder.set_handler(&finder);
71 decoder.Decode(std::as_bytes(std::span(encoded_proto)));
73 EXPECT_TRUE(finder.found());
74 EXPECT_TRUE(nested_finder.found());
75 EXPECT_TRUE(decoder.cancelled());
78 TEST(FindDecodeHandler, MultiLevel_DoesntFindNonExistingNestedField) {
79 CallbackDecoder decoder;
80 FindDecodeHandler nested_finder(3);
81 FindDecodeHandler finder(7, &nested_finder);
83 decoder.set_handler(&finder);
84 decoder.Decode(std::as_bytes(std::span(encoded_proto)));
86 EXPECT_TRUE(finder.found());
87 EXPECT_FALSE(nested_finder.found());
88 EXPECT_FALSE(decoder.cancelled());
92 } // namespace pw::protobuf