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//===-- DataExtractorTest.cpp -----------------------------------*- C++ -*-===//
//
// 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 "lldb/Utility/DataExtractor.h"
using namespace lldb_private;
TEST(DataExtractorTest, GetBitfield) {
uint8_t buffer[] = {0x01, 0x23, 0x45, 0x67};
DataExtractor LE(buffer, sizeof(buffer), lldb::eByteOrderLittle,
sizeof(void *));
DataExtractor BE(buffer, sizeof(buffer), lldb::eByteOrderBig, sizeof(void *));
lldb::offset_t offset;
offset = 0;
ASSERT_EQ(buffer[1], LE.GetMaxU64Bitfield(&offset, sizeof(buffer), 8, 8));
offset = 0;
ASSERT_EQ(buffer[1], BE.GetMaxU64Bitfield(&offset, sizeof(buffer), 8, 8));
offset = 0;
ASSERT_EQ(int8_t(buffer[1]),
LE.GetMaxS64Bitfield(&offset, sizeof(buffer), 8, 8));
offset = 0;
ASSERT_EQ(int8_t(buffer[1]),
BE.GetMaxS64Bitfield(&offset, sizeof(buffer), 8, 8));
}
TEST(DataExtractorTest, PeekData) {
uint8_t buffer[] = {0x01, 0x02, 0x03, 0x04};
DataExtractor E(buffer, sizeof buffer, lldb::eByteOrderLittle, 4);
EXPECT_EQ(buffer + 0, E.PeekData(0, 0));
EXPECT_EQ(buffer + 0, E.PeekData(0, 4));
EXPECT_EQ(nullptr, E.PeekData(0, 5));
EXPECT_EQ(buffer + 2, E.PeekData(2, 0));
EXPECT_EQ(buffer + 2, E.PeekData(2, 2));
EXPECT_EQ(nullptr, E.PeekData(2, 3));
EXPECT_EQ(buffer + 4, E.PeekData(4, 0));
EXPECT_EQ(nullptr, E.PeekData(4, 1));
}
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