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/********************* */
/*! \file context_mm_black.h
** \verbatim
** Top contributors (to current version):
** Dejan Jovanovic, Morgan Deters, Andres Noetzli
** This file is part of the CVC4 project.
** Copyright (c) 2009-2019 by the authors listed in the file AUTHORS
** in the top-level source directory) and their institutional affiliations.
** All rights reserved. See the file COPYING in the top-level source
** directory for licensing information.\endverbatim
**
** \brief Black box testing of CVC4::context::ContextMemoryManager.
**
** Black box testing of CVC4::context::ContextMemoryManager.
**/
#include <cxxtest/TestSuite.h>
#include <cstring>
//Used in some of the tests
#include <vector>
#include <iostream>
#include "context/context_mm.h"
#include "test_utils.h"
using namespace std;
using namespace CVC4::context;
class ContextBlack : public CxxTest::TestSuite {
private:
ContextMemoryManager* d_cmm;
public:
void setUp() override { d_cmm = new ContextMemoryManager(); }
void testPushPop()
{
#ifdef CVC4_DEBUG_CONTEXT_MEMORY_MANAGER
#warning "Using the debug context memory manager, omitting unit tests"
#else
// Push, then allocate, then pop
// We make sure that we don't allocate too much so that all the regions
// should be reclaimed
unsigned chunkSizeBytes = 16384;
unsigned maxFreeChunks = 100;
unsigned piecesPerChunk = 13;
unsigned len;
unsigned N;
len = chunkSizeBytes / piecesPerChunk; // Length of the individual block
N = maxFreeChunks * piecesPerChunk;
for(unsigned p = 0; p < 5; ++ p) {
d_cmm->push();
for (unsigned i = 0; i < N; ++i)
{
char* newMem = (char*)d_cmm->newData(len);
// We only setup the memory in the first run, the others should
// reclaim the same memory
if(p == 0) {
for(unsigned k = 0; k < len - 1; k ++) {
newMem[k] = 'a';
}
newMem[len-1] = 0;
}
if(strlen(newMem) != len - 1) {
cout << strlen(newMem) << " : " << len - 1 << endl;
}
TS_ASSERT(strlen(newMem) == len - 1);
}
d_cmm->pop();
}
unsigned factor = 3;
N = 16384 / factor;
// Push, then allocate, then pop all at once
for (unsigned p = 0; p < 5; ++p)
{
d_cmm->push();
for (unsigned i = 1; i < N; ++i)
{
len = i * factor;
char* newMem = (char*)d_cmm->newData(len);
for (unsigned k = 0; k < len - 1; k++)
{
newMem[k] = 'a';
}
newMem[len - 1] = 0;
TS_ASSERT(strlen(newMem) == len - 1);
}
}
for(unsigned p = 0; p < 5; ++ p) {
d_cmm->pop();
}
// Try popping out of scope
TS_UTILS_EXPECT_ABORT(d_cmm->pop());
#endif /* __CVC4__CONTEXT__CONTEXT_MM_H */
}
void tearDown() override { delete d_cmm; }
};
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