1//===-- sanitizer_allocator_test.cc ---------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file is a part of ThreadSanitizer/AddressSanitizer runtime. 11// 12//===----------------------------------------------------------------------===// 13#include "sanitizer_common/sanitizer_common.h" 14#include "gtest/gtest.h" 15#include <stdlib.h> 16 17namespace __sanitizer { 18 19TEST(Allocator, Basic) { 20 char *p = (char*)InternalAlloc(10); 21 EXPECT_NE(p, (char*)0); 22 char *p2 = (char*)InternalAlloc(20); 23 EXPECT_NE(p2, (char*)0); 24 EXPECT_NE(p2, p); 25 for (int i = 0; i < 10; i++) { 26 p[i] = 42; 27 EXPECT_EQ(p, InternalAllocBlock(p + i)); 28 } 29 for (int i = 0; i < 20; i++) { 30 ((char*)p2)[i] = 42; 31 EXPECT_EQ(p2, InternalAllocBlock(p2 + i)); 32 } 33 InternalFree(p); 34 InternalFree(p2); 35} 36 37TEST(Allocator, Stress) { 38 const int kCount = 1000; 39 char *ptrs[kCount]; 40 unsigned rnd = 42; 41 for (int i = 0; i < kCount; i++) { 42 uptr sz = rand_r(&rnd) % 1000; 43 char *p = (char*)InternalAlloc(sz); 44 EXPECT_NE(p, (char*)0); 45 for (uptr j = 0; j < sz; j++) { 46 p[j] = 42; 47 EXPECT_EQ(p, InternalAllocBlock(p + j)); 48 } 49 ptrs[i] = p; 50 } 51 for (int i = 0; i < kCount; i++) { 52 InternalFree(ptrs[i]); 53 } 54} 55 56TEST(Allocator, ScopedBuffer) { 57 const int kSize = 512; 58 { 59 InternalScopedBuffer<int> int_buf(kSize); 60 EXPECT_EQ(sizeof(int) * kSize, int_buf.size()); // NOLINT 61 } 62 InternalScopedBuffer<char> char_buf(kSize); 63 EXPECT_EQ(sizeof(char) * kSize, char_buf.size()); // NOLINT 64 memset(char_buf.data(), 'c', kSize); 65 for (int i = 0; i < kSize; i++) { 66 EXPECT_EQ('c', char_buf[i]); 67 } 68} 69 70} // namespace __sanitizer 71