| // Copyright 2019 The Pigweed Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| // use this file except in compliance with the License. You may obtain a copy of |
| // the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| // License for the specific language governing permissions and limitations under |
| // the License. |
| |
| #include "pw_preprocessor/util.h" |
| |
| #include <cstdint> |
| |
| #include "pw_unit_test/framework.h" |
| |
| namespace pw { |
| namespace { |
| |
| TEST(Macros, ArraySize) { |
| uint32_t hello_there[123]; |
| static_assert(PW_ARRAY_SIZE(hello_there) == 123); |
| |
| char characters[500]; |
| static_assert(PW_ARRAY_SIZE(characters) == 500); |
| static_assert(PW_ARRAY_SIZE("2345") == 5); |
| |
| struct Object { |
| int a; |
| uint64_t array[2048]; |
| }; |
| Object objects[404]; |
| |
| static_assert(PW_ARRAY_SIZE(objects) == 404); |
| static_assert(PW_ARRAY_SIZE(Object::array) == 2048); |
| static_assert(PW_ARRAY_SIZE(objects[1].array) == 2048); |
| } |
| |
| TEST(Macros, UnusedVariable) { |
| int this_is_not_used = 12; |
| PW_UNUSED(this_is_not_used); |
| |
| volatile void* volatile wow; |
| wow = nullptr; |
| PW_UNUSED(wow); |
| } |
| |
| #define HELLO hello |
| #define WORLD WORLD_IMPL() |
| #define WORLD_IMPL() WORLD ! |
| |
| TEST(Macros, Stringify) { |
| EXPECT_STREQ("", PW_STRINGIFY()); |
| EXPECT_STREQ("> _ <", PW_STRINGIFY(> _ <)); |
| EXPECT_STREQ("hello WORLD !", PW_STRINGIFY(HELLO WORLD)); |
| EXPECT_STREQ("hello, WORLD !", PW_STRINGIFY(HELLO, WORLD)); |
| EXPECT_STREQ("a, b, c, hello, WORLD ! 2", |
| PW_STRINGIFY(a, b, c, HELLO, WORLD 2)); |
| } |
| |
| } // namespace |
| } // namespace pw |