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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "sleb128.h" | 5 #include "sleb128.h" |
| 6 | 6 |
| 7 #include <vector> | 7 #include <vector> |
| 8 #include "elf_traits.h" | 8 #include "elf_traits.h" |
| 9 #include "testing/gtest/include/gtest/gtest.h" | 9 #include "gtest/gtest.h" |
| 10 | 10 |
| 11 namespace relocation_packer { | 11 namespace relocation_packer { |
| 12 | 12 |
| 13 TEST(Sleb128, Encoder) { | 13 TEST(Sleb128, Encoder64) { |
| 14 std::vector<ELF::Sxword> values; | 14 std::vector<uint64_t> values; |
| 15 values.push_back(624485); | 15 values.push_back(624485U); |
| 16 values.push_back(0); | 16 values.push_back(0U); |
| 17 values.push_back(1); | 17 values.push_back(1U); |
| 18 values.push_back(63); | 18 values.push_back(63U); |
| 19 values.push_back(64); | 19 values.push_back(64U); |
| 20 values.push_back(-1); | 20 values.push_back(static_cast<uint64_t>(-1)); |
| 21 values.push_back(-624485); | 21 values.push_back(static_cast<uint64_t>(-624485)); |
| 22 | 22 |
| 23 Sleb128Encoder encoder; | 23 Sleb128Encoder<uint64_t> encoder; |
| 24 encoder.EnqueueAll(values); | 24 encoder.EnqueueAll(values); |
| 25 | 25 |
| 26 encoder.Enqueue(2147483647); | 26 encoder.Enqueue(2147483647U); |
| 27 encoder.Enqueue(-2147483648); | 27 encoder.Enqueue(static_cast<uint64_t>(-2147483648)); |
| 28 encoder.Enqueue(9223372036854775807ll); | 28 encoder.Enqueue(9223372036854775807ULL); |
| 29 encoder.Enqueue(-9223372036854775807ll - 1); | 29 encoder.Enqueue(static_cast<uint64_t>(-9223372036854775807LL - 1)); |
| 30 | 30 |
| 31 std::vector<uint8_t> encoding; | 31 std::vector<uint8_t> encoding; |
| 32 encoder.GetEncoding(&encoding); | 32 encoder.GetEncoding(&encoding); |
| 33 | 33 |
| 34 EXPECT_EQ(42u, encoding.size()); | 34 EXPECT_EQ(42u, encoding.size()); |
| 35 // 624485 | 35 // 624485 |
| 36 EXPECT_EQ(0xe5, encoding[0]); | 36 EXPECT_EQ(0xe5, encoding[0]); |
| 37 EXPECT_EQ(0x8e, encoding[1]); | 37 EXPECT_EQ(0x8e, encoding[1]); |
| 38 EXPECT_EQ(0x26, encoding[2]); | 38 EXPECT_EQ(0x26, encoding[2]); |
| 39 // 0 | 39 // 0 |
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| 136 encoding.push_back(0x80); | 136 encoding.push_back(0x80); |
| 137 encoding.push_back(0x80); | 137 encoding.push_back(0x80); |
| 138 encoding.push_back(0x80); | 138 encoding.push_back(0x80); |
| 139 encoding.push_back(0x80); | 139 encoding.push_back(0x80); |
| 140 encoding.push_back(0x80); | 140 encoding.push_back(0x80); |
| 141 encoding.push_back(0x80); | 141 encoding.push_back(0x80); |
| 142 encoding.push_back(0x80); | 142 encoding.push_back(0x80); |
| 143 encoding.push_back(0x80); | 143 encoding.push_back(0x80); |
| 144 encoding.push_back(0x7f); | 144 encoding.push_back(0x7f); |
| 145 | 145 |
| 146 Sleb128Decoder decoder(encoding); | 146 Sleb128Decoder<uint64_t> decoder(encoding, 0); |
| 147 | 147 |
| 148 EXPECT_EQ(624485, decoder.Dequeue()); | 148 EXPECT_EQ(624485U, decoder.Dequeue()); |
| 149 | 149 |
| 150 std::vector<ELF::Sxword> dequeued; | 150 std::vector<uint64_t> dequeued; |
| 151 decoder.DequeueAll(&dequeued); | 151 decoder.DequeueAll(&dequeued); |
| 152 | 152 |
| 153 EXPECT_EQ(10u, dequeued.size()); | 153 EXPECT_EQ(10U, dequeued.size()); |
| 154 EXPECT_EQ(0, dequeued[0]); | 154 EXPECT_EQ(0U, dequeued[0]); |
| 155 EXPECT_EQ(1, dequeued[1]); | 155 EXPECT_EQ(1U, dequeued[1]); |
| 156 EXPECT_EQ(63, dequeued[2]); | 156 EXPECT_EQ(63U, dequeued[2]); |
| 157 EXPECT_EQ(64, dequeued[3]); | 157 EXPECT_EQ(64U, dequeued[3]); |
| 158 EXPECT_EQ(-1, dequeued[4]); | 158 EXPECT_EQ(static_cast<uint64_t>(-1), dequeued[4]); |
| 159 EXPECT_EQ(-624485, dequeued[5]); | 159 EXPECT_EQ(static_cast<uint64_t>(-624485), dequeued[5]); |
| 160 EXPECT_EQ(2147483647, dequeued[6]); | 160 EXPECT_EQ(2147483647U, dequeued[6]); |
| 161 EXPECT_EQ(-2147483648, dequeued[7]); | 161 EXPECT_EQ(static_cast<uint64_t>(-2147483648), dequeued[7]); |
| 162 EXPECT_EQ(9223372036854775807ll, dequeued[8]); | 162 EXPECT_EQ(9223372036854775807ULL, dequeued[8]); |
| 163 EXPECT_EQ(-9223372036854775807ll - 1, dequeued[9]); | 163 EXPECT_EQ(static_cast<uint64_t>(-9223372036854775807LL - 1), dequeued[9]); |
| 164 } | 164 } |
| 165 | 165 |
| 166 } // namespace relocation_packer | 166 } // namespace relocation_packer |
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