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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2009
*
* This file is part of Gecode, the generic constraint
* development environment:
* http://www.gecode.org
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <gecode/kernel.hh>
#include <gecode/int.hh>
#include "test/test.hh"
namespace Test {
/// %Test for %AFC infrastructure
class AFC : public Test::Base {
protected:
/// Test space
class TestSpace : public Gecode::Space {
protected:
/// Two integer variables
Gecode::IntVar x, y;
public:
/// Constructor for creation
TestSpace(void) : x(*this,0,10), y(*this,0,10) {}
/// Constructor for cloning \a s
TestSpace(TestSpace& s) : Space(s) {
x.update(*this,s.x);
y.update(*this,s.y);
}
/// Post arbitrary propagator
void post(void) {
Gecode::rel(*this, x, Gecode::IRT_LE, y);
}
/// Copy during cloning
virtual Space* copy(void) {
return new TestSpace(*this);
}
};
/// How many test operations to be performed
static const int n_ops = 8 * 1024;
/// How many spaces to maintain
static const int n = 16;
/// Return random index of non-null space
int space(TestSpace* s[]) {
int i = _rand(n);
while (s[i] == nullptr)
i = (i+1) % n;
return i;
}
/// Return random index
int index(void) {
return _rand(n);
}
public:
/// Initialize test
AFC(void) : Test::Base("AFC") {}
/// Perform actual tests
bool run(void) {
// Array of spaces for tests
TestSpace* s[n];
// How many spaces exist in s
int n_s = 1;
for (int i=n; i--; )
s[i] = nullptr;
s[0] = new TestSpace;
for (int o=n_ops; o--; )
switch (_rand(3)) {
case 0:
// clone space
{
int i = index();
if ((s[i] != nullptr)) {
if (n_s > 1) {
delete s[i]; s[i]=nullptr; n_s--;
} else {
break;
}
}
int j = space(s);
(void) s[j]->status();
s[i] = static_cast<TestSpace*>(s[j]->clone());
n_s++;
}
break;
case 1:
// delete space
if (n_s > 1) {
int i = space(s);
delete s[i]; s[i]=nullptr; n_s--;
}
break;
case 2:
// post propagator
s[space(s)]->post();
break;
default:
GECODE_NEVER;
}
// Delete all remaining spaces
for (int i=n; i--; )
delete s[i];
return true;
}
};
AFC afc;
}
// STATISTICS: test-core
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