dlib C++ Library - reference_counter.cpp

// Copyright (C) 2006 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#include <sstream>
#include <string>
#include <cstdlib>
#include <ctime>
#include <dlib/reference_counter.h>
#include "tester.h"
namespace 
{
 using namespace test;
 using namespace std;
 using namespace dlib;
 logger dlog("test.reference_counter");
 template <
 typename ref_counter 
 >
 void reference_counter_test (
 )
 /*!
 requires
 - ref_counter is an implementation of reference_counter/reference_counter_kernel_abstract.h 
 and is instantiated to contain an int 
 ensures
 - runs tests on reference_counter for compliance with the specs 
 !*/
 { 
 ref_counter a, b, c;
 for (long i = 0; i < 10; ++i)
 {
 print_spinner();
 for (long j = 0; j < 10000; ++j)
 {
 a.modify() = j;
 b.modify() = j+1;
 c.modify() = j+2;
 DLIB_ASSERT(a.access() == j,"");
 DLIB_ASSERT(b.access() == j+1,"");
 DLIB_ASSERT(c.access() == j+2,"");
 DLIB_ASSERT(a.modify() == j,"");
 DLIB_ASSERT(b.modify() == j+1,"");
 DLIB_ASSERT(c.modify() == j+2,"");
 DLIB_ASSERT(a.access() == j,"");
 DLIB_ASSERT(b.access() == j+1,"");
 DLIB_ASSERT(c.access() == j+2,"");
 DLIB_ASSERT(a.modify() == j,"");
 DLIB_ASSERT(b.modify() == j+1,"");
 DLIB_ASSERT(c.modify() == j+2,"");
 a = c;
 DLIB_ASSERT(a.access() == j+2,"");
 DLIB_ASSERT(b.access() == j+1,"");
 DLIB_ASSERT(c.access() == j+2,"");
 DLIB_ASSERT(a.modify() == j+2,"");
 DLIB_ASSERT(b.modify() == j+1,"");
 DLIB_ASSERT(c.modify() == j+2,"");
 DLIB_ASSERT(a.access() == j+2,"");
 DLIB_ASSERT(b.access() == j+1,"");
 DLIB_ASSERT(c.access() == j+2,"");
 DLIB_ASSERT(a.modify() == j+2,"");
 DLIB_ASSERT(b.modify() == j+1,"");
 DLIB_ASSERT(c.modify() == j+2,"");
 a = b = c;
 DLIB_ASSERT(a.access() == b.access(),"");
 DLIB_ASSERT(a.access() == c.access(),"");
 DLIB_ASSERT(c.access() == b.access(),"");
 a.modify() = j;
 DLIB_ASSERT(a.access() == j,"");
 DLIB_ASSERT(a.access() != b.access(),"");
 DLIB_ASSERT(a.access() != c.access(),"");
 DLIB_ASSERT(c.access() == b.access(),"");
 DLIB_ASSERT(c.access() == j+2,"");
 DLIB_ASSERT(b.access() == j+2,"");
 DLIB_ASSERT(a.access() == j,"");
 a = a;
 DLIB_ASSERT(a.access() == j,"");
 c = c;
 DLIB_ASSERT(c.access() == j+2,"");
 DLIB_ASSERT(b.access() == j+2,"");
 swap(a,c);
 DLIB_ASSERT(a.access() == j+2,"");
 DLIB_ASSERT(c.access() == j,"");
 DLIB_ASSERT(b.access() == j+2,"");
 }
 }
 }
 class reference_counter_tester : public tester
 {
 public:
 reference_counter_tester (
 ) :
 tester ("test_reference_counter",
 "Runs tests on the reference_counter component.")
 {}
 void perform_test (
 )
 {
 dlog << LINFO << "testing kernel_1a";
 reference_counter_test<reference_counter<int>::kernel_1a> ();
 }
 } a;
}