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17a74ddd3d
PR-URL: https://github.com/nodejs/node/pull/49639 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/diagnostics/eh-frame.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace v8 {
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namespace internal {
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// Test enabled only on supported architectures.
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#if defined(V8_TARGET_ARCH_X64) || defined(V8_TARGET_ARCH_ARM) || \
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defined(V8_TARGET_ARCH_ARM64)
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namespace {
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class EhFrameIteratorTest : public testing::Test {};
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} // namespace
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TEST_F(EhFrameIteratorTest, Values) {
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// Assuming little endian.
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static const uint8_t kEncoded[] = {0xDE, 0xC0, 0xAD, 0xDE, 0xEF, 0xBE, 0xFF};
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EhFrameIterator iterator(&kEncoded[0], &kEncoded[0] + sizeof(kEncoded));
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EXPECT_EQ(0xDEADC0DE, iterator.GetNextUInt32());
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EXPECT_EQ(0xBEEF, iterator.GetNextUInt16());
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EXPECT_EQ(0xFF, iterator.GetNextByte());
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EXPECT_TRUE(iterator.Done());
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}
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TEST_F(EhFrameIteratorTest, Skip) {
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static const uint8_t kEncoded[] = {0xDE, 0xAD, 0xC0, 0xDE};
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EhFrameIterator iterator(&kEncoded[0], &kEncoded[0] + sizeof(kEncoded));
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iterator.Skip(2);
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EXPECT_EQ(2, iterator.GetCurrentOffset());
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EXPECT_EQ(0xC0, iterator.GetNextByte());
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iterator.Skip(1);
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EXPECT_TRUE(iterator.Done());
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}
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TEST_F(EhFrameIteratorTest, ULEB128Decoding) {
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static const uint8_t kEncoded[] = {0xE5, 0x8E, 0x26};
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EhFrameIterator iterator(&kEncoded[0], &kEncoded[0] + sizeof(kEncoded));
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EXPECT_EQ(624485u, iterator.GetNextULeb128());
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EXPECT_TRUE(iterator.Done());
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}
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TEST_F(EhFrameIteratorTest, SLEB128DecodingPositive) {
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static const uint8_t kEncoded[] = {0xE5, 0x8E, 0x26};
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EhFrameIterator iterator(&kEncoded[0], &kEncoded[0] + sizeof(kEncoded));
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EXPECT_EQ(624485, iterator.GetNextSLeb128());
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EXPECT_TRUE(iterator.Done());
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}
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TEST_F(EhFrameIteratorTest, SLEB128DecodingNegative) {
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static const uint8_t kEncoded[] = {0x9B, 0xF1, 0x59};
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EhFrameIterator iterator(&kEncoded[0], &kEncoded[0] + sizeof(kEncoded));
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EXPECT_EQ(-624485, iterator.GetNextSLeb128());
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EXPECT_TRUE(iterator.Done());
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}
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#endif
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} // namespace internal
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} // namespace v8
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