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test_resource.t.cpp
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test_resource.t.cpp
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/* test_resource.t.cpp -*-C++-*-
*
* Copyright 2017 Pablo Halpern.
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*/
#include "test_resource.h"
#include <iostream>
#include <cstdlib>
#include <climits>
#include <cstring>
//==========================================================================
// ASSERT TEST MACRO
//--------------------------------------------------------------------------
static int testStatus = 0;
static void aSsErT(int c, const char *s, int i) {
if (c) {
std::cout << __FILE__ << ":" << i << ": error: " << s
<< " (failed)" << std::endl;
if (testStatus >= 0 && testStatus <= 100) ++testStatus;
}
}
# define ASSERT(X) { aSsErT(!(X), #X, __LINE__); }
//--------------------------------------------------------------------------
#define LOOP_ASSERT(I,X) { \
if (!(X)) { std::cout << #I << ": " << I << "\n"; \
aSsErT(1, #X, __LINE__); } }
#define LOOP2_ASSERT(I,J,X) { \
if (!(X)) { std::cout << #I << ": " << I << "\t" << #J << ": " \
<< J << "\n"; aSsErT(1, #X, __LINE__); } }
#define LOOP3_ASSERT(I,J,K,X) { \
if (!(X)) { std::cout << #I << ": " << I << "\t" << #J << ": " << J \
<< "\t" << #K << ": " << K << "\n"; \
aSsErT(1, #X, __LINE__); } }
#define LOOP4_ASSERT(I,J,K,L,X) { \
if (!(X)) { std::cout << #I << ": " << I << "\t" << #J << ": " << J \
<< "\t" << #K << ": " << K << "\t" << #L << ": " \
<< L << "\n"; aSsErT(1, #X, __LINE__); } }
#define LOOP5_ASSERT(I,J,K,L,M,X) { \
if (!(X)) { std::cout << #I << ": " << I << "\t" << #J << ": " << J \
<< "\t" << #K << ": " << K << "\t" << #L << ": " \
<< L << "\t" << #M << ": " << M << "\n"; \
aSsErT(1, #X, __LINE__); } }
#define LOOP6_ASSERT(I,J,K,L,M,N,X) { \
if (!(X)) { std::cout << #I << ": " << I << "\t" << #J << ": " << J \
<< "\t" << #K << ": " << K << "\t" << #L << ": " \
<< L << "\t" << #M << ": " << M << "\t" << #N \
<< ": " << N << "\n"; aSsErT(1, #X, __LINE__); } }
int main(int argc, char *argv[])
{
using namespace cpp17::pmr;
std::cout << "Testing constructors\n";
test_resource tr1;
ASSERT(0 == tr1.bytes_allocated());
ASSERT(0 == tr1.bytes_deallocated());
ASSERT(0 == tr1.bytes_outstanding());
ASSERT(0 == tr1.bytes_highwater());
ASSERT(0 == tr1.blocks_outstanding());
ASSERT(new_delete_resource_singleton() == tr1.parent());
test_resource tr2(&tr1);
ASSERT(&tr1 == tr2.parent());
std::cout << "Testing operator ==\n";
ASSERT(tr1.is_equal(tr1));
ASSERT(tr1 == tr1);
ASSERT(! tr1.is_equal(tr2));
ASSERT(tr1 != tr2);
std::cout << "Testing statistics gathering\n";
void* p1 = tr1.allocate(40);
ASSERT(40 == tr1.bytes_allocated());
ASSERT(0 == tr1.bytes_deallocated());
ASSERT(40 == tr1.bytes_outstanding());
ASSERT(40 == tr1.bytes_highwater());
ASSERT(1 == tr1.blocks_outstanding());
tr1.deallocate(p1, 40);
ASSERT(40 == tr1.bytes_allocated());
ASSERT(40 == tr1.bytes_deallocated());
ASSERT(0 == tr1.bytes_outstanding());
ASSERT(40 == tr1.bytes_highwater());
ASSERT(0 == tr1.blocks_outstanding());
p1 = tr1.allocate(32);
ASSERT(72 == tr1.bytes_allocated());
ASSERT(40 == tr1.bytes_deallocated());
ASSERT(32 == tr1.bytes_outstanding());
ASSERT(40 == tr1.bytes_highwater());
ASSERT(1 == tr1.blocks_outstanding());
void *p2 = tr1.allocate(64, 2);
ASSERT(136 == tr1.bytes_allocated());
ASSERT(40 == tr1.bytes_deallocated());
ASSERT(96 == tr1.bytes_outstanding());
ASSERT(96 == tr1.bytes_highwater());
ASSERT(2 == tr1.blocks_outstanding());
tr1.deallocate(p1, 32);
ASSERT(136 == tr1.bytes_allocated());
ASSERT(72 == tr1.bytes_deallocated());
ASSERT(64 == tr1.bytes_outstanding());
ASSERT(96 == tr1.bytes_highwater());
ASSERT(1 == tr1.blocks_outstanding());
std::cout << "Testing detection of mismatched pointer on deallocation\n";
try {
int dummy = 0;
tr1.deallocate(&dummy, sizeof(int), sizeof(int));
ASSERT(false && "unreachable");
} catch (std::invalid_argument& ex) {
const char *experr = "deallocate: Invalid pointer";
LOOP_ASSERT(ex.what(), 0 == strcmp(experr, ex.what()));
}
std::cout << "Testing detection of mismatched size on deallocation\n";
try {
tr1.deallocate(p2, 32, 2);
ASSERT(false && "unreachable");
} catch (std::invalid_argument& ex) {
const char *experr = "deallocate: Size mismatch";
LOOP_ASSERT(ex.what(), 0 == strcmp(experr, ex.what()));
}
std::cout << "Testing detection of mismatched alignment on deallocation\n";
try {
tr1.deallocate(p2, 64, 4);
ASSERT(false && "unreachable");
} catch (std::invalid_argument& ex) {
const char *experr = "deallocate: Alignment mismatch";
LOOP_ASSERT(ex.what(), 0 == strcmp(experr, ex.what()));
}
tr1.deallocate(p2, 64, 2);
ASSERT(136 == tr1.bytes_allocated());
ASSERT(136 == tr1.bytes_deallocated());
ASSERT(0 == tr1.bytes_outstanding());
ASSERT(96 == tr1.bytes_highwater());
ASSERT(0 == tr1.blocks_outstanding());
std::cout << "Testing delegation to parent resource\n";
test_resource parentr;
{
test_resource tr3(&parentr);
ASSERT(&parentr == tr3.parent());
ASSERT(0 == parentr.blocks_outstanding());
// First allocation in tr3 allocates an extra block in parent for
// internal vector.
void *p3 = tr3.allocate(128); (void) p3;
ASSERT(1 == tr3.blocks_outstanding());
ASSERT(2 == parentr.blocks_outstanding());
void *p4 = tr3.allocate(18, 2);
void *p5 = tr3.allocate(8, 8); (void) p5;
ASSERT(154 == tr3.bytes_outstanding());
ASSERT(3 == tr3.blocks_outstanding());
ASSERT(4 == parentr.blocks_outstanding());
// No leak recorded until resource is destroyed.
ASSERT(0 == test_resource::leaked_bytes());
ASSERT(0 == test_resource::leaked_blocks());
tr3.deallocate(p4, 18, 2);
tr3.deallocate(p5, 8, 8);
tr3.deallocate(p3, 128);
ASSERT(0 == tr3.bytes_outstanding());
ASSERT(0 == tr3.blocks_outstanding());
ASSERT(1 >= parentr.blocks_outstanding());
// tr3 destroyed -- no leak
}
ASSERT(0 == test_resource::leaked_bytes());
ASSERT(0 == test_resource::leaked_blocks());
ASSERT(0 == parentr.blocks_outstanding());
std::cout << "Testing detection of leaks on resource destruction\n";
{
test_resource tr4(&parentr);
ASSERT(&parentr == tr4.parent());
ASSERT(0 == parentr.blocks_outstanding());
void *p3 = tr4.allocate(128); (void) p3;
void *p4 = tr4.allocate(18, 2);
void *p5 = tr4.allocate(8, 8); (void) p5;
ASSERT(154 == tr4.bytes_outstanding());
ASSERT(3 == tr4.blocks_outstanding());
ASSERT(4 == parentr.blocks_outstanding());
tr4.deallocate(p4, 18, 2);
ASSERT(136 == tr4.bytes_outstanding());
ASSERT(2 == tr4.blocks_outstanding());
ASSERT(3 == parentr.blocks_outstanding());
// No leak recorded until resource is destroyed.
ASSERT(0 == test_resource::leaked_bytes());
ASSERT(0 == test_resource::leaked_blocks());
// tr4 destructor called here, leaking 2 blocks.
}
LOOP_ASSERT(test_resource::leaked_bytes(),
136 == test_resource::leaked_bytes());
LOOP_ASSERT(test_resource::leaked_blocks(),
2 == test_resource::leaked_blocks());
// Test that all "leaked" blocks were actually returned to parent resource
LOOP_ASSERT(parentr.blocks_outstanding(),
0 == parentr.blocks_outstanding());
test_resource::clear_leaked();
ASSERT(0 == test_resource::leaked_bytes());
ASSERT(0 == test_resource::leaked_blocks());
std::cout << (0 == testStatus ? "PASSED" : "FAILED") << std::endl;
return testStatus;
}
/* End test_resource.t.cpp */