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Diffstat (limited to 'core/fxcrt/fx_memory_unittest.cpp')
-rw-r--r-- | core/fxcrt/fx_memory_unittest.cpp | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/core/fxcrt/fx_memory_unittest.cpp b/core/fxcrt/fx_memory_unittest.cpp new file mode 100644 index 0000000000..ae15db2a72 --- /dev/null +++ b/core/fxcrt/fx_memory_unittest.cpp @@ -0,0 +1,81 @@ +// 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); +} + +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); +} + +TEST(fxcrt, DISABLED_FXMEM_DefaultOOM) { + EXPECT_FALSE(FXMEM_DefaultAlloc(kMaxByteAlloc, 0)); + + void* ptr = FXMEM_DefaultAlloc(1, 0); + EXPECT_TRUE(ptr); + EXPECT_FALSE(FXMEM_DefaultRealloc(ptr, kMaxByteAlloc, 0)); + FXMEM_DefaultFree(ptr, 0); +} |