mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-31 16:02:52 +01:00
121 lines
3.4 KiB
C++
121 lines
3.4 KiB
C++
//===- llvm/unittest/Support/DataExtractorTest.cpp - DataExtractor tests --===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "gtest/gtest.h"
|
|
#include "llvm/Support/DataExtractor.h"
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
const char numberData[] = "\x80\x90\xFF\xFF\x80\x00\x00\x00";
|
|
const char stringData[] = "hellohello\0hello";
|
|
const char leb128data[] = "\xA6\x49";
|
|
const char bigleb128data[] = "\xAA\xA9\xFF\xAA\xFF\xAA\xFF\x4A";
|
|
|
|
TEST(DataExtractorTest, OffsetOverflow) {
|
|
DataExtractor DE(StringRef(numberData, sizeof(numberData)-1), false, 8);
|
|
EXPECT_FALSE(DE.isValidOffsetForDataOfSize(-2U, 5));
|
|
}
|
|
|
|
TEST(DataExtractorTest, UnsignedNumbers) {
|
|
DataExtractor DE(StringRef(numberData, sizeof(numberData)-1), false, 8);
|
|
uint32_t offset = 0;
|
|
|
|
EXPECT_EQ(0x80U, DE.getU8(&offset));
|
|
EXPECT_EQ(1U, offset);
|
|
offset = 0;
|
|
EXPECT_EQ(0x8090U, DE.getU16(&offset));
|
|
EXPECT_EQ(2U, offset);
|
|
offset = 0;
|
|
EXPECT_EQ(0x8090FFFFU, DE.getU32(&offset));
|
|
EXPECT_EQ(4U, offset);
|
|
offset = 0;
|
|
EXPECT_EQ(0x8090FFFF80000000ULL, DE.getU64(&offset));
|
|
EXPECT_EQ(8U, offset);
|
|
offset = 0;
|
|
EXPECT_EQ(0x8090FFFF80000000ULL, DE.getAddress(&offset));
|
|
EXPECT_EQ(8U, offset);
|
|
offset = 0;
|
|
|
|
uint32_t data[2];
|
|
EXPECT_EQ(data, DE.getU32(&offset, data, 2));
|
|
EXPECT_EQ(0x8090FFFFU, data[0]);
|
|
EXPECT_EQ(0x80000000U, data[1]);
|
|
EXPECT_EQ(8U, offset);
|
|
offset = 0;
|
|
|
|
// Now for little endian.
|
|
DE = DataExtractor(StringRef(numberData, sizeof(numberData)-1), true, 4);
|
|
EXPECT_EQ(0x9080U, DE.getU16(&offset));
|
|
EXPECT_EQ(2U, offset);
|
|
offset = 0;
|
|
EXPECT_EQ(0xFFFF9080U, DE.getU32(&offset));
|
|
EXPECT_EQ(4U, offset);
|
|
offset = 0;
|
|
EXPECT_EQ(0x80FFFF9080ULL, DE.getU64(&offset));
|
|
EXPECT_EQ(8U, offset);
|
|
offset = 0;
|
|
EXPECT_EQ(0xFFFF9080U, DE.getAddress(&offset));
|
|
EXPECT_EQ(4U, offset);
|
|
offset = 0;
|
|
|
|
EXPECT_EQ(data, DE.getU32(&offset, data, 2));
|
|
EXPECT_EQ(0xFFFF9080U, data[0]);
|
|
EXPECT_EQ(0x80U, data[1]);
|
|
EXPECT_EQ(8U, offset);
|
|
}
|
|
|
|
TEST(DataExtractorTest, SignedNumbers) {
|
|
DataExtractor DE(StringRef(numberData, sizeof(numberData)-1), false, 8);
|
|
uint32_t offset = 0;
|
|
|
|
EXPECT_EQ(-128, DE.getSigned(&offset, 1));
|
|
EXPECT_EQ(1U, offset);
|
|
offset = 0;
|
|
EXPECT_EQ(-32624, DE.getSigned(&offset, 2));
|
|
EXPECT_EQ(2U, offset);
|
|
offset = 0;
|
|
EXPECT_EQ(-2137980929, DE.getSigned(&offset, 4));
|
|
EXPECT_EQ(4U, offset);
|
|
offset = 0;
|
|
EXPECT_EQ(-9182558167379214336LL, DE.getSigned(&offset, 8));
|
|
EXPECT_EQ(8U, offset);
|
|
}
|
|
|
|
TEST(DataExtractorTest, Strings) {
|
|
DataExtractor DE(StringRef(stringData, sizeof(stringData)-1), false, 8);
|
|
uint32_t offset = 0;
|
|
|
|
EXPECT_EQ(stringData, DE.getCStr(&offset));
|
|
EXPECT_EQ(11U, offset);
|
|
EXPECT_EQ(NULL, DE.getCStr(&offset));
|
|
EXPECT_EQ(11U, offset);
|
|
}
|
|
|
|
TEST(DataExtractorTest, LEB128) {
|
|
DataExtractor DE(StringRef(leb128data, sizeof(leb128data)-1), false, 8);
|
|
uint32_t offset = 0;
|
|
|
|
EXPECT_EQ(9382ULL, DE.getULEB128(&offset));
|
|
EXPECT_EQ(2U, offset);
|
|
offset = 0;
|
|
EXPECT_EQ(-7002LL, DE.getSLEB128(&offset));
|
|
EXPECT_EQ(2U, offset);
|
|
|
|
DataExtractor BDE(StringRef(bigleb128data, sizeof(bigleb128data)-1), false,8);
|
|
offset = 0;
|
|
EXPECT_EQ(42218325750568106ULL, BDE.getULEB128(&offset));
|
|
EXPECT_EQ(8U, offset);
|
|
offset = 0;
|
|
EXPECT_EQ(-29839268287359830LL, BDE.getSLEB128(&offset));
|
|
EXPECT_EQ(8U, offset);
|
|
}
|
|
|
|
}
|