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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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100 lines
2.8 KiB
100 lines
2.8 KiB
// |
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// Copyright 2015 gRPC authors. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// |
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// |
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#include <grpc/support/port_platform.h> |
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#include "src/core/lib/gpr/useful.h" |
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#include <stdint.h> |
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#include <limits> |
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#include "gtest/gtest.h" |
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namespace grpc_core { |
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TEST(UsefulTest, ClampWorks) { |
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EXPECT_EQ(Clamp(1, 0, 2), 1); |
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EXPECT_EQ(Clamp(0, 0, 2), 0); |
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EXPECT_EQ(Clamp(2, 0, 2), 2); |
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EXPECT_EQ(Clamp(-1, 0, 2), 0); |
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EXPECT_EQ(Clamp(3, 0, 2), 2); |
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} |
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TEST(UsefulTest, Rotate) { |
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EXPECT_EQ(RotateLeft(0x80000001u, 1u), 3); |
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EXPECT_EQ(RotateRight(0x80000001u, 1u), 0xc0000000); |
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} |
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TEST(UsefulTest, ArraySize) { |
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int four[4]; |
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int five[5]; |
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EXPECT_EQ(GPR_ARRAY_SIZE(four), 4); |
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EXPECT_EQ(GPR_ARRAY_SIZE(five), 5); |
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} |
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TEST(UsefulTest, BitOps) { |
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uint32_t bitset = 0; |
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EXPECT_EQ(BitCount((1u << 31) - 1), 31); |
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EXPECT_EQ(BitCount(1u << 3), 1); |
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EXPECT_EQ(BitCount(0), 0); |
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EXPECT_EQ(SetBit(&bitset, 3), 8); |
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EXPECT_EQ(BitCount(bitset), 1); |
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EXPECT_EQ(GetBit(bitset, 3), 1); |
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EXPECT_EQ(SetBit(&bitset, 1), 10); |
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EXPECT_EQ(BitCount(bitset), 2); |
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EXPECT_EQ(ClearBit(&bitset, 3), 2); |
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EXPECT_EQ(BitCount(bitset), 1); |
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EXPECT_EQ(GetBit(bitset, 3), 0); |
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EXPECT_EQ(BitCount(std::numeric_limits<uint64_t>::max()), 64); |
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} |
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TEST(UsefulTest, SaturatingAdd) { |
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EXPECT_EQ(SaturatingAdd(0, 0), 0); |
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EXPECT_EQ(SaturatingAdd(0, 1), 1); |
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EXPECT_EQ(SaturatingAdd(1, 0), 1); |
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EXPECT_EQ(SaturatingAdd(1, 1), 2); |
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EXPECT_EQ(SaturatingAdd(std::numeric_limits<int64_t>::max(), 1), |
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std::numeric_limits<int64_t>::max()); |
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EXPECT_EQ(SaturatingAdd(std::numeric_limits<int64_t>::max(), |
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std::numeric_limits<int64_t>::max()), |
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std::numeric_limits<int64_t>::max()); |
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EXPECT_EQ(SaturatingAdd(std::numeric_limits<int64_t>::min(), -1), |
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std::numeric_limits<int64_t>::min()); |
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} |
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TEST(UsefulTest, RoundUpToPowerOf2) { |
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EXPECT_EQ(RoundUpToPowerOf2(0), 0); |
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EXPECT_EQ(RoundUpToPowerOf2(1), 1); |
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EXPECT_EQ(RoundUpToPowerOf2(2), 2); |
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EXPECT_EQ(RoundUpToPowerOf2(3), 4); |
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EXPECT_EQ(RoundUpToPowerOf2(4), 4); |
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EXPECT_EQ(RoundUpToPowerOf2(5), 8); |
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EXPECT_EQ(RoundUpToPowerOf2(6), 8); |
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EXPECT_EQ(RoundUpToPowerOf2(7), 8); |
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EXPECT_EQ(RoundUpToPowerOf2(8), 8); |
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} |
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} // namespace grpc_core |
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int main(int argc, char** argv) { |
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::testing::InitGoogleTest(&argc, argv); |
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return RUN_ALL_TESTS(); |
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}
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