1 // Copyright 2015 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "core/fxcrt/fx_memory.h" 6 7 #include <limits> 8 9 #include "testing/gtest/include/gtest/gtest.h" 10 11 namespace { 12 13 const size_t kMaxByteAlloc = std::numeric_limits<size_t>::max(); 14 const size_t kMaxIntAlloc = kMaxByteAlloc / sizeof(int); 15 const size_t kOverflowIntAlloc = kMaxIntAlloc + 100; 16 const size_t kWidth = 640; 17 const size_t kOverflowIntAlloc2D = kMaxIntAlloc / kWidth + 10; 18 19 } // namespace 20 21 // TODO(tsepez): re-enable OOM tests if we can find a way to 22 // prevent it from hosing the bots. 23 TEST(fxcrt, DISABLED_FX_AllocOOM) { 24 EXPECT_DEATH_IF_SUPPORTED((void)FX_Alloc(int, kMaxIntAlloc), ""); 25 26 int* ptr = FX_Alloc(int, 1); 27 EXPECT_TRUE(ptr); 28 EXPECT_DEATH_IF_SUPPORTED((void)FX_Realloc(int, ptr, kMaxIntAlloc), ""); 29 FX_Free(ptr); 30 } 31 32 TEST(fxcrt, FX_AllocOverflow) { 33 // |ptr| needs to be defined and used to avoid Clang optimizes away the 34 // FX_Alloc() statement overzealously for optimized builds. 35 int* ptr = nullptr; 36 EXPECT_DEATH_IF_SUPPORTED(ptr = FX_Alloc(int, kOverflowIntAlloc), "") << ptr; 37 38 ptr = FX_Alloc(int, 1); 39 EXPECT_TRUE(ptr); 40 EXPECT_DEATH_IF_SUPPORTED((void)FX_Realloc(int, ptr, kOverflowIntAlloc), ""); 41 FX_Free(ptr); 42 } 43 44 TEST(fxcrt, FX_AllocOverflow2D) { 45 // |ptr| needs to be defined and used to avoid Clang optimizes away the 46 // FX_Alloc() statement overzealously for optimized builds. 47 int* ptr = nullptr; 48 EXPECT_DEATH_IF_SUPPORTED(ptr = FX_Alloc2D(int, kWidth, kOverflowIntAlloc2D), 49 "") 50 << ptr; 51 } 52 53 TEST(fxcrt, DISABLED_FX_TryAllocOOM) { 54 EXPECT_FALSE(FX_TryAlloc(int, kMaxIntAlloc)); 55 56 int* ptr = FX_Alloc(int, 1); 57 EXPECT_TRUE(ptr); 58 EXPECT_FALSE(FX_TryRealloc(int, ptr, kMaxIntAlloc)); 59 FX_Free(ptr); 60 } 61 62 TEST(fxcrt, FX_TryAllocOverflow) { 63 // |ptr| needs to be defined and used to avoid Clang optimizes away the 64 // calloc() statement overzealously for optimized builds. 65 int* ptr = (int*)calloc(sizeof(int), kOverflowIntAlloc); 66 EXPECT_FALSE(ptr) << ptr; 67 68 ptr = FX_Alloc(int, 1); 69 EXPECT_TRUE(ptr); 70 EXPECT_FALSE(FX_TryRealloc(int, ptr, kOverflowIntAlloc)); 71 FX_Free(ptr); 72 } 73 74 TEST(fxcrt, DISABLED_FXMEM_DefaultOOM) { 75 EXPECT_FALSE(FXMEM_DefaultAlloc(kMaxByteAlloc)); 76 77 void* ptr = FXMEM_DefaultAlloc(1); 78 EXPECT_TRUE(ptr); 79 EXPECT_FALSE(FXMEM_DefaultRealloc(ptr, kMaxByteAlloc)); 80 FXMEM_DefaultFree(ptr); 81 } 82
