| /* |
| * Copyright (C) 2016, The Android Open Source Project |
| * |
| * 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 |
| * |
| * http://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 <cstdint> |
| #include <limits> |
| |
| #include "gtest/gtest.h" |
| |
| #include "wifilogd/local_utils.h" |
| |
| namespace android { |
| namespace wifilogd { |
| |
| using local_utils::GetMaxVal; |
| |
| TEST(LocalUtilsTest, GetMaxValFromTypeIsCorrectForUnsignedTypes) { |
| EXPECT_EQ(std::numeric_limits<uint8_t>::max(), GetMaxVal<uint8_t>()); |
| EXPECT_EQ(std::numeric_limits<uint16_t>::max(), GetMaxVal<uint16_t>()); |
| EXPECT_EQ(std::numeric_limits<uint32_t>::max(), GetMaxVal<uint32_t>()); |
| EXPECT_EQ(std::numeric_limits<uint64_t>::max(), GetMaxVal<uint64_t>()); |
| } |
| |
| TEST(LocalUtilsTest, GetMaxValFromTypeIsCorrectForSignedTypes) { |
| EXPECT_EQ(std::numeric_limits<int8_t>::max(), GetMaxVal<int8_t>()); |
| EXPECT_EQ(std::numeric_limits<int16_t>::max(), GetMaxVal<int16_t>()); |
| EXPECT_EQ(std::numeric_limits<int32_t>::max(), GetMaxVal<int32_t>()); |
| EXPECT_EQ(std::numeric_limits<int64_t>::max(), GetMaxVal<int64_t>()); |
| } |
| |
| TEST(LocalUtilsTest, GetMaxValFromInstanceIsCorrectForUnsignedTypes) { |
| EXPECT_EQ(std::numeric_limits<uint8_t>::max(), GetMaxVal(uint8_t{})); |
| EXPECT_EQ(std::numeric_limits<uint16_t>::max(), GetMaxVal(uint16_t{})); |
| EXPECT_EQ(std::numeric_limits<uint32_t>::max(), GetMaxVal(uint32_t{})); |
| EXPECT_EQ(std::numeric_limits<uint64_t>::max(), GetMaxVal(uint64_t{})); |
| } |
| |
| TEST(LocalUtilsTest, GetMaxValFromInstanceIsCorrectForSignedTypes) { |
| EXPECT_EQ(std::numeric_limits<int8_t>::max(), GetMaxVal(int8_t{})); |
| EXPECT_EQ(std::numeric_limits<int16_t>::max(), GetMaxVal(int16_t{})); |
| EXPECT_EQ(std::numeric_limits<int32_t>::max(), GetMaxVal(int32_t{})); |
| EXPECT_EQ(std::numeric_limits<int64_t>::max(), GetMaxVal(int64_t{})); |
| } |
| |
| TEST(LocalUtilsTest, SafelyClampWorksForSameTypeClamping) { |
| EXPECT_EQ(int8_t{0}, (SAFELY_CLAMP(int8_t{-1}, int8_t, 0, 2))); |
| EXPECT_EQ(int8_t{0}, (SAFELY_CLAMP(int8_t{0}, int8_t, 0, 2))); |
| EXPECT_EQ(int8_t{1}, (SAFELY_CLAMP(int8_t{1}, int8_t, 0, 2))); |
| EXPECT_EQ(int8_t{2}, (SAFELY_CLAMP(int8_t{2}, int8_t, 0, 2))); |
| EXPECT_EQ(int8_t{2}, (SAFELY_CLAMP(int8_t{3}, int8_t, 0, 2))); |
| } |
| |
| TEST(LocalUtilsTest, SafelyClampWorksForSignedToUnsigned) { |
| static_assert(std::numeric_limits<int8_t>::max() == 127, |
| "upper bound is set incorrectly"); |
| EXPECT_EQ(uint8_t{0}, (SAFELY_CLAMP(int8_t{-1}, uint8_t, 0, 127))); |
| EXPECT_EQ(uint8_t{0}, (SAFELY_CLAMP(int8_t{0}, uint8_t, 0, 127))); |
| EXPECT_EQ(uint8_t{1}, (SAFELY_CLAMP(int8_t{1}, uint8_t, 0, 127))); |
| EXPECT_EQ(uint8_t{127}, (SAFELY_CLAMP(int8_t{127}, uint8_t, 0, 127))); |
| } |
| |
| TEST(LocalUtilsTest, SafelyClampWorksForUnsignedToSigned) { |
| static_assert(std::numeric_limits<int8_t>::max() == 127, |
| "upper bound is set incorrectly"); |
| EXPECT_EQ(int8_t{0}, (SAFELY_CLAMP(uint8_t{0}, int8_t, 0, 127))); |
| EXPECT_EQ(int8_t{1}, (SAFELY_CLAMP(uint8_t{1}, int8_t, 0, 127))); |
| EXPECT_EQ(int8_t{127}, (SAFELY_CLAMP(uint8_t{127}, int8_t, 0, 127))); |
| EXPECT_EQ(int8_t{127}, (SAFELY_CLAMP(uint8_t{128}, int8_t, 0, 127))); |
| } |
| |
| } // namespace wifilogd |
| } // namespace android |