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// Copyright (C) 2003 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/queue.h>
#include <dlib/memory_manager_global.h>
#include "tester.h"
// This is called an unnamed-namespace and it has the effect of making everything inside this file "private"
// so that everything you declare will have static linkage. Thus we won't have any multiply
// defined symbol errors coming out of the linker when we try to compile the test suite.
namespace
{
using namespace test;
using namespace dlib;
using namespace std;
// Declare the logger we will use in this test. The name of the tester
// should start with "test."
logger dlog("test.queue");
template <
typename queue
>
void queue_sort_test (
)
/*!
requires
- queue is an implementation of queue/queue_sort_abstract.h
is instantiated with int
ensures
- runs tests on queue for compliance with the specs
!*/
{
print_spinner();
srand(static_cast<unsigned int>(time(0)));
queue q,q2;
enumerable<int>& e = q;
// I will use these DLIB_TEST_MSG macros to assert that conditions are true. If they are
// false then it means we have detected an error in the queue object. CASSERT
// will then throw an exception which we will catch at the end of this function and
// report as an error/failed test.
DLIB_TEST(e.at_start() == true);
int a = 0;
DLIB_TEST(q.size() == 0);
DLIB_TEST(q.at_start() == true);
DLIB_TEST(q.current_element_valid() == false);
q.sort();
DLIB_TEST(q.size() == 0);
DLIB_TEST(q.at_start() == true);
DLIB_TEST(q.current_element_valid() == false);
DLIB_TEST (q.move_next() == false);
DLIB_TEST (q.move_next() == false);
DLIB_TEST (q.move_next() == false);
DLIB_TEST (q.move_next() == false);
DLIB_TEST (q.move_next() == false);
DLIB_TEST (q.move_next() == false);
DLIB_TEST(q.size() == 0);
DLIB_TEST(q.at_start() == false);
DLIB_TEST(q.current_element_valid() == false);
q.reset();
DLIB_TEST(q.size() == 0);
DLIB_TEST(q.at_start() == true);
DLIB_TEST(q.current_element_valid() == false);
q.clear();
q2.clear();
DLIB_TEST(q.size() == 0);
DLIB_TEST(q2.size() == 0);
for (int i = 0; i < 10000; ++i)
{
int a = i;
q.enqueue(a);
}
q2.cat(q);
DLIB_TEST(q.size() == 0);
DLIB_TEST(q2.size() == 10000);
int g = 0;
while (q2.move_next())
{
DLIB_TEST_MSG(q2.element() == g,g);
++g;
}
for (int i = 0;i < 10000; ++i)
{
int a = 0;
q2.dequeue(a);
DLIB_TEST(a == i);
}
DLIB_TEST(q.size() == 0);
DLIB_TEST(q2.size() == 0);
q.clear();
q2.clear();
print_spinner();
dlog << LTRACE << "creating big pre-sorted queue";
q.clear();
DLIB_TEST(q.size() == 0);
for (int i = 0; i < 10000; ++i)
{
int a = i;
q.enqueue(a);
}
dlog << LTRACE << "sorting already sorted queue";
q.sort();
dlog << LTRACE << "done sorting, checking the results";
for (int i = 0; i < 10000; ++i)
{
q.dequeue(a);
DLIB_TEST(a == i);
}
q.clear();
dlog << LTRACE << "done with the big pre-sorted queue test";
q.clear();
q2.clear();
DLIB_TEST(q.size() == 0);
DLIB_TEST(q2.size() == 0);
for (int i = 0; i < 1; ++i)
{
int a = i;
q.enqueue(a);
}
q2.cat(q);
DLIB_TEST(q.size() == 0);
DLIB_TEST(q2.size() == 1);
g = 0;
while (q2.move_next())
{
DLIB_TEST_MSG(q2.element() == g,g);
++g;
}
for (int i = 0;i < 1; ++i)
{
int a = 0;
q2.dequeue(a);
DLIB_TEST(a == i);
}
DLIB_TEST(q.size() == 0);
DLIB_TEST(q2.size() == 0);
q.clear();
q2.clear();
print_spinner();
for (int j = 0; j < 3; ++j)
{
for (int i = 0; i < 10000; ++i)
{
a = ::rand();
q.enqueue(a);
}
while (q.move_next()) ;
DLIB_TEST(q.at_start() == false);
q.sort();
DLIB_TEST(q.at_start() == true);
// serialize the state of q, then clear q, then
// load the state back into q.
ostringstream sout;
serialize(q,sout);
DLIB_TEST(q.at_start() == true);
istringstream sin(sout.str());
q.clear();
deserialize(q,sin);
DLIB_TEST(q.at_start() == true);
a = 0;
int last = 0;
while (q.move_next())
{
++a;
DLIB_TEST_MSG(last <= q.element(),"items weren't actually sorted");
last = q.element();
DLIB_TEST(q.current_element_valid() == true);
DLIB_TEST(q.at_start() == false);
DLIB_TEST(q.current_element_valid() == true);
}
DLIB_TEST_MSG(a == 10000,"some items were lost between the sorting and iterating");
DLIB_TEST(q.size() == 10000);
swap(q,q2);
DLIB_TEST(q2.at_start() == false);
DLIB_TEST(q2.current_element_valid() == false);
DLIB_TEST (q2.move_next() == false);
DLIB_TEST (q2.move_next() == false);
DLIB_TEST (q2.move_next() == false);
DLIB_TEST (q2.move_next() == false);
DLIB_TEST (q2.move_next() == false);
DLIB_TEST (q2.move_next() == false);
DLIB_TEST(q2.size() == 10000);
DLIB_TEST(q2.at_start() == false);
DLIB_TEST(q2.current_element_valid() == false);
q2.clear();
q.swap(q2);
DLIB_TEST(q.size() == 0);
DLIB_TEST(q.at_start() == true);
DLIB_TEST(q.current_element_valid() == false);
}
print_spinner();
// try the above code but this time with just one element
// in the queue
for (int j = 0; j < 3; ++j)
{
for (int i = 0; i < 1; ++i)
{
a = ::rand();
q.enqueue(a);
}
q.sort();
a = 0;
int last = 0;
while (q.move_next())
{
++a;
DLIB_TEST_MSG(last <= q.element(),"items weren't actually sorted");
DLIB_TEST(q.current_element_valid() == true);
}
DLIB_TEST_MSG(a == 1,"some items were lost between the sorting and iterating");
DLIB_TEST(q.size() == 1);
DLIB_TEST(q.at_start() == false);
DLIB_TEST(q.current_element_valid() == false);
q.clear();
DLIB_TEST(q.size() == 0);
DLIB_TEST(q.at_start() == true);
DLIB_TEST(q.current_element_valid() == false);
}
print_spinner();
{
q.clear();
remover<int>& go = q;
for (int i = 0; i < 100; ++i)
{
int a = 3;
q.enqueue(a);
}
DLIB_TEST(go.size() == 100);
for (int i = 0; i < 100; ++i)
{
int a = 9;
q.remove_any(a);
DLIB_TEST(a == 3);
}
DLIB_TEST(go.size() == 0);
}
}
struct factory
{
template <typename U>
struct return_type {
typedef typename memory_manager<U>::kernel_3c type;
};
template <typename U>
static typename return_type<U>::type* get_instance (
)
{
static typename return_type<U>::type a;
return &a;
}
};
class queue_tester : public tester
{
/*!
WHAT THIS OBJECT REPRESENTS
This object represents a test for the queue object. When it is constructed
it adds itself into the testing framework. The command line switch is
specified as test_queue by passing that string to the tester constructor.
!*/
public:
queue_tester (
) :
tester ("test_queue",
"Runs tests on the queue component.")
{}
void perform_test (
)
{
// There are multiple implementations of the queue object so use
// the templated function defined above to test them all and report
// a failed test if any of them don't pass.
typedef dlib::memory_manager_global<char,factory>::kernel_1a mm;
dlog << LINFO << "testing sort_1a_c";
queue_sort_test<queue<int, mm>::sort_1a_c> ();
dlog << LINFO << "testing sort_1a";
queue_sort_test<queue<int, mm>::sort_1a>();
dlog << LINFO << "testing sort_1b";
queue_sort_test<queue<int, mm>::sort_1b> ();
dlog << LINFO << "testing sort_1b_c";
queue_sort_test<queue<int, mm>::sort_1b_c>();
dlog << LINFO << "testing sort_1c";
queue_sort_test<queue<int, mm>::sort_1c> ();
dlog << LINFO << "testing sort_1c_c";
queue_sort_test<queue<int, mm>::sort_1c_c>();
}
} a;
}
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