Alexei Frolov | c10c812 | 2019-11-01 16:31:19 -0700 | [diff] [blame] | 1 | // Copyright 2019 The Pigweed Authors |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); you may not |
Wyatt Hepler | 1a96094 | 2019-11-26 14:13:38 -0800 | [diff] [blame] | 4 | // use this file except in compliance with the License. You may obtain a copy of |
| 5 | // the License at |
Alexei Frolov | c10c812 | 2019-11-01 16:31:19 -0700 | [diff] [blame] | 6 | // |
| 7 | // https://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, WITHOUT |
| 11 | // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
Wyatt Hepler | 1a96094 | 2019-11-26 14:13:38 -0800 | [diff] [blame] | 12 | // License for the specific language governing permissions and limitations under |
| 13 | // the License. |
Alexei Frolov | c10c812 | 2019-11-01 16:31:19 -0700 | [diff] [blame] | 14 | // |
| 15 | // All of these tests are static asserts. If the test compiles, it has already |
| 16 | // passed. The TEST functions are used for organization only. |
| 17 | #include "pw_preprocessor/boolean.h" |
| 18 | |
| 19 | #include "pw_unit_test/framework.h" |
| 20 | |
| 21 | namespace pw { |
| 22 | namespace { |
| 23 | |
| 24 | #define ONE 1 |
| 25 | #define ZERO() 0 |
| 26 | |
| 27 | TEST(BooleanMacros, And) { |
| 28 | static_assert(PW_AND(ZERO(), 0) == 0); |
| 29 | static_assert(PW_AND(ZERO(), ONE) == 0); |
| 30 | static_assert(PW_AND(1, 0) == 0); |
| 31 | static_assert(PW_AND(ONE, PW_NOT(ZERO())) == 1); |
| 32 | } |
| 33 | |
| 34 | TEST(BooleanMacros, Or) { |
| 35 | static_assert(PW_OR(ZERO(), 0) == 0); |
| 36 | static_assert(PW_OR(ZERO(), ONE) == 1); |
| 37 | static_assert(PW_OR(1, 0) == 1); |
| 38 | static_assert(PW_OR(ONE, PW_NOT(ZERO())) == 1); |
| 39 | } |
| 40 | |
| 41 | TEST(BooleanMacros, Not) { |
| 42 | static_assert(PW_NOT(0) == 1); |
| 43 | static_assert(PW_NOT(1) == 0); |
| 44 | static_assert(PW_NOT(ONE) == 0); |
| 45 | static_assert(PW_NOT(ZERO()) == 1); |
| 46 | } |
| 47 | |
| 48 | TEST(BooleanMacros, Xor) { |
| 49 | static_assert(PW_XOR(ZERO(), 0) == 0); |
| 50 | static_assert(PW_XOR(ZERO(), ONE) == 1); |
| 51 | static_assert(PW_XOR(1, 0) == 1); |
| 52 | static_assert(PW_XOR(ONE, PW_NOT(ZERO())) == 0); |
| 53 | } |
| 54 | |
| 55 | TEST(BooleanMacros, Nand) { |
| 56 | static_assert(PW_NAND(ZERO(), 0) == 1); |
| 57 | static_assert(PW_NAND(ZERO(), ONE) == 1); |
| 58 | static_assert(PW_NAND(1, 0) == 1); |
| 59 | static_assert(PW_NAND(ONE, PW_NOT(ZERO())) == 0); |
| 60 | } |
| 61 | |
| 62 | TEST(BooleanMacros, Nor) { |
| 63 | static_assert(PW_NOR(ZERO(), 0) == 1); |
| 64 | static_assert(PW_NOR(ZERO(), ONE) == 0); |
| 65 | static_assert(PW_NOR(1, 0) == 0); |
| 66 | static_assert(PW_NOR(ONE, PW_NOT(ZERO())) == 0); |
| 67 | } |
| 68 | |
| 69 | TEST(BooleanMacros, Xnor) { |
| 70 | static_assert(PW_XNOR(ZERO(), 0) == 1); |
| 71 | static_assert(PW_XNOR(ZERO(), ONE) == 0); |
| 72 | static_assert(PW_XNOR(1, 0) == 0); |
| 73 | static_assert(PW_XNOR(ONE, PW_NOT(ZERO())) == 1); |
| 74 | } |
| 75 | |
| 76 | TEST(BooleanMacros, Nested) { |
| 77 | static_assert(PW_AND(1, PW_AND(PW_OR(ZERO(), ONE), PW_XOR(ONE, 0))) == 1); |
| 78 | } |
| 79 | |
| 80 | } // namespace |
| 81 | } // namespace pw |