1 // Copyright 2021 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
15 #include "src/core/lib/promise/if.h"
16
17 #include "gtest/gtest.h"
18
19 namespace grpc_core {
20
TEST(IfTest,ChooseTrue)21 TEST(IfTest, ChooseTrue) {
22 EXPECT_EQ(If([]() { return true; }, []() { return 1; }, []() { return 2; })(),
23 Poll<int>(1));
24 }
25
TEST(IfTest,ChooseFalse)26 TEST(IfTest, ChooseFalse) {
27 EXPECT_EQ(
28 If([]() { return false; }, []() { return 1; }, []() { return 2; })(),
29 Poll<int>(2));
30 }
31
TEST(IfTest,ChooseSuccesfulTrue)32 TEST(IfTest, ChooseSuccesfulTrue) {
33 EXPECT_EQ(If([]() { return absl::StatusOr<bool>(true); },
34 []() { return absl::StatusOr<int>(1); },
35 []() { return absl::StatusOr<int>(2); })(),
36 Poll<absl::StatusOr<int>>(absl::StatusOr<int>(1)));
37 }
38
TEST(IfTest,ChooseSuccesfulFalse)39 TEST(IfTest, ChooseSuccesfulFalse) {
40 EXPECT_EQ(If([]() { return absl::StatusOr<bool>(false); },
41 []() { return absl::StatusOr<int>(1); },
42 []() { return absl::StatusOr<int>(2); })(),
43 Poll<absl::StatusOr<int>>(absl::StatusOr<int>(2)));
44 }
45
TEST(IfTest,ChooseFailure)46 TEST(IfTest, ChooseFailure) {
47 EXPECT_EQ(If([]() { return absl::StatusOr<bool>(); },
48 []() { return absl::StatusOr<int>(1); },
49 []() { return absl::StatusOr<int>(2); })(),
50 Poll<absl::StatusOr<int>>(absl::StatusOr<int>()));
51 }
52
TEST(IfTest,ImmediateChooseTrue)53 TEST(IfTest, ImmediateChooseTrue) {
54 EXPECT_EQ(If(
55 true, []() { return 1; }, []() { return 2; })(),
56 Poll<int>(1));
57 }
58
TEST(IfTest,ImmediateChooseFalse)59 TEST(IfTest, ImmediateChooseFalse) {
60 EXPECT_EQ(If(
61 false, []() { return 1; }, []() { return 2; })(),
62 Poll<int>(2));
63 }
64
65 } // namespace grpc_core
66
main(int argc,char ** argv)67 int main(int argc, char** argv) {
68 ::testing::InitGoogleTest(&argc, argv);
69 return RUN_ALL_TESTS();
70 }
71