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// Copyright 2015 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "core/fxcrt/fx_memory.h"
#include <limits>
#include "testing/gtest/include/gtest/gtest.h"
namespace {
const size_t kMaxByteAlloc = std::numeric_limits<size_t>::max();
const size_t kMaxIntAlloc = kMaxByteAlloc / sizeof(int);
const size_t kOverflowIntAlloc = kMaxIntAlloc + 100;
const size_t kWidth = 640;
const size_t kOverflowIntAlloc2D = kMaxIntAlloc / kWidth + 10;
} // namespace
// TODO(tsepez): re-enable OOM tests if we can find a way to
// prevent it from hosing the bots.
TEST(fxcrt, DISABLED_FX_AllocOOM) {
EXPECT_DEATH_IF_SUPPORTED((void)FX_Alloc(int, kMaxIntAlloc), "");
int* ptr = FX_Alloc(int, 1);
EXPECT_TRUE(ptr);
EXPECT_DEATH_IF_SUPPORTED((void)FX_Realloc(int, ptr, kMaxIntAlloc), "");
FX_Free(ptr);
}
TEST(fxcrt, FX_AllocOverflow) {
// |ptr| needs to be defined and used to avoid Clang optimizes away the
// FX_Alloc() statement overzealously for optimized builds.
int* ptr = nullptr;
EXPECT_DEATH_IF_SUPPORTED(ptr = FX_Alloc(int, kOverflowIntAlloc), "") << ptr;
ptr = FX_Alloc(int, 1);
EXPECT_TRUE(ptr);
EXPECT_DEATH_IF_SUPPORTED((void)FX_Realloc(int, ptr, kOverflowIntAlloc), "");
FX_Free(ptr);
}
TEST(fxcrt, FX_AllocOverflow2D) {
// |ptr| needs to be defined and used to avoid Clang optimizes away the
// FX_Alloc() statement overzealously for optimized builds.
int* ptr = nullptr;
EXPECT_DEATH_IF_SUPPORTED(ptr = FX_Alloc2D(int, kWidth, kOverflowIntAlloc2D),
"")
<< ptr;
}
TEST(fxcrt, DISABLED_FX_TryAllocOOM) {
EXPECT_FALSE(FX_TryAlloc(int, kMaxIntAlloc));
int* ptr = FX_Alloc(int, 1);
EXPECT_TRUE(ptr);
EXPECT_FALSE(FX_TryRealloc(int, ptr, kMaxIntAlloc));
FX_Free(ptr);
}
#if !defined(__GNUC__)
TEST(fxcrt, FX_TryAllocOverflow) {
// |ptr| needs to be defined and used to avoid Clang optimizes away the
// calloc() statement overzealously for optimized builds.
int* ptr = (int*)calloc(sizeof(int), kOverflowIntAlloc);
EXPECT_FALSE(ptr) << ptr;
ptr = FX_Alloc(int, 1);
EXPECT_TRUE(ptr);
EXPECT_FALSE(FX_TryRealloc(int, ptr, kOverflowIntAlloc));
FX_Free(ptr);
}
#endif
TEST(fxcrt, DISABLED_FXMEM_DefaultOOM) {
EXPECT_FALSE(FXMEM_DefaultAlloc(kMaxByteAlloc));
void* ptr = FXMEM_DefaultAlloc(1);
EXPECT_TRUE(ptr);
EXPECT_FALSE(FXMEM_DefaultRealloc(ptr, kMaxByteAlloc));
FXMEM_DefaultFree(ptr);
}
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