// Copyright 2015 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <limits>
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#include "core/fxcrt/include/fx_memory.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace {
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const size_t kMaxByteAlloc = std::numeric_limits<size_t>::max();
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const size_t kMaxIntAlloc = kMaxByteAlloc / sizeof(int);
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const size_t kOverflowIntAlloc = kMaxIntAlloc + 100;
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const size_t kWidth = 640;
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const size_t kOverflowIntAlloc2D = kMaxIntAlloc / kWidth + 10;
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} // namespace
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// TODO(tsepez): re-enable OOM tests if we can find a way to
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// prevent it from hosing the bots.
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TEST(fxcrt, DISABLED_FX_AllocOOM) {
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EXPECT_DEATH_IF_SUPPORTED((void)FX_Alloc(int, kMaxIntAlloc), "");
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int* ptr = FX_Alloc(int, 1);
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EXPECT_TRUE(ptr);
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EXPECT_DEATH_IF_SUPPORTED((void)FX_Realloc(int, ptr, kMaxIntAlloc), "");
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FX_Free(ptr);
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}
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TEST(fxcrt, FX_AllocOverflow) {
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// |ptr| needs to be defined and used to avoid Clang optimizes away the
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// FX_Alloc() statement overzealously for optimized builds.
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int* ptr = nullptr;
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EXPECT_DEATH_IF_SUPPORTED(ptr = FX_Alloc(int, kOverflowIntAlloc), "") << ptr;
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ptr = FX_Alloc(int, 1);
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EXPECT_TRUE(ptr);
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EXPECT_DEATH_IF_SUPPORTED((void)FX_Realloc(int, ptr, kOverflowIntAlloc), "");
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FX_Free(ptr);
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}
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TEST(fxcrt, FX_AllocOverflow2D) {
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// |ptr| needs to be defined and used to avoid Clang optimizes away the
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// FX_Alloc() statement overzealously for optimized builds.
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int* ptr = nullptr;
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EXPECT_DEATH_IF_SUPPORTED(ptr = FX_Alloc2D(int, kWidth, kOverflowIntAlloc2D),
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"")
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<< ptr;
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}
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TEST(fxcrt, DISABLED_FX_TryAllocOOM) {
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EXPECT_FALSE(FX_TryAlloc(int, kMaxIntAlloc));
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int* ptr = FX_Alloc(int, 1);
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EXPECT_TRUE(ptr);
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EXPECT_FALSE(FX_TryRealloc(int, ptr, kMaxIntAlloc));
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FX_Free(ptr);
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}
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TEST(fxcrt, FX_TryAllocOverflow) {
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// |ptr| needs to be defined and used to avoid Clang optimizes away the
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// calloc() statement overzealously for optimized builds.
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int* ptr = (int*)calloc(sizeof(int), kOverflowIntAlloc);
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EXPECT_FALSE(ptr) << ptr;
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ptr = FX_Alloc(int, 1);
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EXPECT_TRUE(ptr);
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EXPECT_FALSE(FX_TryRealloc(int, ptr, kOverflowIntAlloc));
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FX_Free(ptr);
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}
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TEST(fxcrt, DISABLED_FXMEM_DefaultOOM) {
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EXPECT_FALSE(FXMEM_DefaultAlloc(kMaxByteAlloc, 0));
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void* ptr = FXMEM_DefaultAlloc(1, 0);
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EXPECT_TRUE(ptr);
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EXPECT_FALSE(FXMEM_DefaultRealloc(ptr, kMaxByteAlloc, 0));
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FXMEM_DefaultFree(ptr, 0);
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}
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