forked from OSchip/llvm-project
99 lines
2.8 KiB
C++
99 lines
2.8 KiB
C++
|
//===- llvm/unittest/Support/MemoryBufferTest.cpp - MemoryBuffer tests ----===//
|
||
|
|
//
|
||
|
|
// The LLVM Compiler Infrastructure
|
||
|
|
//
|
||
|
|
// This file is distributed under the University of Illinois Open Source
|
||
|
|
// License. See LICENSE.TXT for details.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// This file implements unit tests for the MemoryBuffer support class.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#include "llvm/Support/MemoryBuffer.h"
|
||
|
|
#include "llvm/ADT/OwningPtr.h"
|
||
|
|
#include "gtest/gtest.h"
|
||
|
|
|
||
|
|
using namespace llvm;
|
||
|
|
|
||
|
|
class MemoryBufferTest : public testing::Test {
|
||
|
|
protected:
|
||
|
|
MemoryBufferTest()
|
||
|
|
: data("this is some data")
|
||
|
|
{ }
|
||
|
|
|
||
|
|
virtual void SetUp() { }
|
||
|
|
|
||
|
|
typedef OwningPtr<MemoryBuffer> OwningBuffer;
|
||
|
|
|
||
|
|
std::string data;
|
||
|
|
};
|
||
|
|
|
||
|
|
namespace {
|
||
|
|
|
||
|
|
TEST_F(MemoryBufferTest, get) {
|
||
|
|
// Default name and null-terminator flag
|
||
|
|
OwningBuffer MB1(MemoryBuffer::getMemBuffer(data));
|
||
|
|
EXPECT_TRUE(0 != MB1.get());
|
||
|
|
|
||
|
|
// RequiresNullTerminator = false
|
||
|
|
OwningBuffer MB2(MemoryBuffer::getMemBuffer(data, "one", false));
|
||
|
|
EXPECT_TRUE(0 != MB2.get());
|
||
|
|
|
||
|
|
// RequiresNullTerminator = true
|
||
|
|
OwningBuffer MB3(MemoryBuffer::getMemBuffer(data, "two", true));
|
||
|
|
EXPECT_TRUE(0 != MB3.get());
|
||
|
|
|
||
|
|
// verify all 3 buffers point to the same address
|
||
|
|
EXPECT_EQ(MB1->getBufferStart(), MB2->getBufferStart());
|
||
|
|
EXPECT_EQ(MB2->getBufferStart(), MB3->getBufferStart());
|
||
|
|
|
||
|
|
// verify the original data is unmodified after deleting the buffers
|
||
|
|
MB1.reset();
|
||
|
|
MB2.reset();
|
||
|
|
MB3.reset();
|
||
|
|
EXPECT_EQ("this is some data", data);
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(MemoryBufferTest, copy) {
|
||
|
|
// copy with no name
|
||
|
|
OwningBuffer MBC1(MemoryBuffer::getMemBufferCopy(data));
|
||
|
|
EXPECT_TRUE(0 != MBC1.get());
|
||
|
|
|
||
|
|
// copy with a name
|
||
|
|
OwningBuffer MBC2(MemoryBuffer::getMemBufferCopy(data, "copy"));
|
||
|
|
EXPECT_TRUE(0 != MBC2.get());
|
||
|
|
|
||
|
|
// verify the two copies do not point to the same place
|
||
|
|
EXPECT_NE(MBC1->getBufferStart(), MBC2->getBufferStart());
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(MemoryBufferTest, make_new) {
|
||
|
|
// 0-sized buffer
|
||
|
|
OwningBuffer Zero(MemoryBuffer::getNewUninitMemBuffer(0));
|
||
|
|
EXPECT_TRUE(0 != Zero.get());
|
||
|
|
|
||
|
|
// uninitialized buffer with no name
|
||
|
|
OwningBuffer One(MemoryBuffer::getNewUninitMemBuffer(321));
|
||
|
|
EXPECT_TRUE(0 != One.get());
|
||
|
|
|
||
|
|
// uninitialized buffer with name
|
||
|
|
OwningBuffer Two(MemoryBuffer::getNewUninitMemBuffer(123, "bla"));
|
||
|
|
EXPECT_TRUE(0 != Two.get());
|
||
|
|
|
||
|
|
// 0-initialized buffer with no name
|
||
|
|
OwningBuffer Three(MemoryBuffer::getNewMemBuffer(321, data));
|
||
|
|
EXPECT_TRUE(0 != Three.get());
|
||
|
|
for (size_t i = 0; i < 321; ++i)
|
||
|
|
EXPECT_EQ(0, Three->getBufferStart()[0]);
|
||
|
|
|
||
|
|
// 0-initialized buffer with name
|
||
|
|
OwningBuffer Four(MemoryBuffer::getNewMemBuffer(123, "zeros"));
|
||
|
|
EXPECT_TRUE(0 != Four.get());
|
||
|
|
for (size_t i = 0; i < 123; ++i)
|
||
|
|
EXPECT_EQ(0, Four->getBufferStart()[0]);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|