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107 lines
2.5 KiB
C++
107 lines
2.5 KiB
C++
//===----------- StringTableBuilderTest.cpp -------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/MC/StringTableBuilder.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/Support/Endian.h"
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#include "gtest/gtest.h"
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#include <string>
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using namespace llvm;
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namespace {
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TEST(StringTableBuilderTest, BasicELF) {
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StringTableBuilder B(StringTableBuilder::ELF);
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B.add("foo");
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B.add("bar");
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B.add("foobar");
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B.finalize();
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std::string Expected;
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Expected += '\x00';
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Expected += "foobar";
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Expected += '\x00';
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Expected += "foo";
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Expected += '\x00';
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SmallString<64> Data;
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raw_svector_ostream OS(Data);
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B.write(OS);
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EXPECT_EQ(Expected, Data);
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EXPECT_EQ(1U, B.getOffset("foobar"));
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EXPECT_EQ(4U, B.getOffset("bar"));
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EXPECT_EQ(8U, B.getOffset("foo"));
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}
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TEST(StringTableBuilderTest, BasicWinCOFF) {
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StringTableBuilder B(StringTableBuilder::WinCOFF);
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// Strings must be 9 chars or longer to go in the table.
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B.add("hippopotamus");
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B.add("pygmy hippopotamus");
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B.add("river horse");
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B.finalize();
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// size_field + "pygmy hippopotamus\0" + "river horse\0"
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uint32_t ExpectedSize = 4 + 19 + 12;
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EXPECT_EQ(ExpectedSize, B.getSize());
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std::string Expected;
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ExpectedSize =
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support::endian::byte_swap<uint32_t, support::little>(ExpectedSize);
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Expected.append((const char*)&ExpectedSize, 4);
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Expected += "pygmy hippopotamus";
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Expected += '\x00';
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Expected += "river horse";
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Expected += '\x00';
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SmallString<64> Data;
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raw_svector_ostream OS(Data);
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B.write(OS);
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EXPECT_EQ(Expected, Data);
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EXPECT_EQ(4U, B.getOffset("pygmy hippopotamus"));
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EXPECT_EQ(10U, B.getOffset("hippopotamus"));
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EXPECT_EQ(23U, B.getOffset("river horse"));
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}
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TEST(StringTableBuilderTest, ELFInOrder) {
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StringTableBuilder B(StringTableBuilder::ELF);
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EXPECT_EQ(1U, B.add("foo"));
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EXPECT_EQ(5U, B.add("bar"));
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EXPECT_EQ(9U, B.add("foobar"));
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B.finalizeInOrder();
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std::string Expected;
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Expected += '\x00';
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Expected += "foo";
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Expected += '\x00';
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Expected += "bar";
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Expected += '\x00';
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Expected += "foobar";
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Expected += '\x00';
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SmallString<64> Data;
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raw_svector_ostream OS(Data);
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B.write(OS);
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EXPECT_EQ(Expected, Data);
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EXPECT_EQ(1U, B.getOffset("foo"));
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EXPECT_EQ(5U, B.getOffset("bar"));
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EXPECT_EQ(9U, B.getOffset("foobar"));
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}
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}
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