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AndroidCamera/FaceBlit/VS/include/dlib/test/sliding_buffer.cpp
T
coco 4af4d1c457 a
2026-07-03 15:59:36 +08:00

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// Copyright (C) 2004 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#include <sstream>
#include <string>
#include <ctime>
#include <cstdlib>
#include <dlib/sliding_buffer.h>
#include "tester.h"
namespace
{
using namespace test;
using namespace std;
using namespace dlib;
logger dlog("test.sliding_buffer");
template <
typename buf
>
void sliding_buffer_kernel_test (
)
/*!
requires
- buf is an implementation of sliding_buffer/sliding_buffer_kernel_abstract.h
- buf is instantiated with T=unsigned char
ensures
- runs tests on buf for compliance with the specs
!*/
{
print_spinner();
buf test;
DLIB_TEST(test.size() == 0);
test.set_size(3);
buf test2;
DLIB_TEST(test.size() == 8);
for (int g = 0; g < 2; ++g)
{
test.clear();
DLIB_TEST(test.size() == 0);
test.set_size(2);
DLIB_TEST(test.size() == 4);
test[0] = 'a';
test[1] = 's';
test[2] = 'd';
test[3] = 'f';
unsigned long id = test.get_element_id(2);
DLIB_TEST(test[test.get_element_index(id)] == 'd');
DLIB_TEST(test[0] == 'a');
DLIB_TEST(test[1] == 's');
DLIB_TEST(test[2] == 'd');
DLIB_TEST(test[3] == 'f');
DLIB_TEST(test2.size() == 0);
swap(test,test2);
DLIB_TEST(test2.size() == 4);
DLIB_TEST(test2[0] == 'a');
DLIB_TEST(test2[1] == 's');
DLIB_TEST(test2[2] == 'd');
DLIB_TEST(test2[3] == 'f');
swap(test,test2);
test.rotate_left(4);
DLIB_TEST(test[test.get_element_index(id)] == 'd');
DLIB_TEST(test[0] == 'a');
DLIB_TEST(test[1] == 's');
DLIB_TEST(test[2] == 'd');
DLIB_TEST(test[3] == 'f');
test.rotate_right(1);
DLIB_TEST(test[test.get_element_index(id)] == 'd');
DLIB_TEST(test[0] == 's');
DLIB_TEST(test[1] == 'd');
DLIB_TEST(test[2] == 'f');
DLIB_TEST(test[3] == 'a');
test.rotate_left(1);
DLIB_TEST(test[test.get_element_index(id)] == 'd');
DLIB_TEST(test[0] == 'a');
DLIB_TEST(test[1] == 's');
DLIB_TEST(test[2] == 'd');
DLIB_TEST(test[3] == 'f');
test.rotate_left(16);
DLIB_TEST(test[test.get_element_index(id)] == 'd');
DLIB_TEST(test[0] == 'a');
DLIB_TEST(test[1] == 's');
DLIB_TEST(test[2] == 'd');
DLIB_TEST(test[3] == 'f');
test.rotate_left(2);
DLIB_TEST(test[test.get_element_index(id)] == 'd');
DLIB_TEST(test[0] == 'd');
DLIB_TEST(test[1] == 'f');
DLIB_TEST(test[2] == 'a');
DLIB_TEST(test[3] == 's');
test.rotate_left(1);
DLIB_TEST(test[test.get_element_index(id)] == 'd');
DLIB_TEST(test[0] == 's');
DLIB_TEST(test[1] == 'd');
DLIB_TEST(test[2] == 'f');
DLIB_TEST(test[3] == 'a');
test.rotate_left(1);
DLIB_TEST(test[test.get_element_index(id)] == 'd');
DLIB_TEST(test[0] == 'a');
DLIB_TEST(test[1] == 's');
DLIB_TEST(test[2] == 'd');
DLIB_TEST(test[3] == 'f');
DLIB_TEST(test.size() == 4);
test[0] = 'x';
DLIB_TEST(test[0] == 'x');
DLIB_TEST(test[1] == 's');
DLIB_TEST(test[2] == 'd');
DLIB_TEST(test[3] == 'f');
test.rotate_left(1);
DLIB_TEST_MSG(test[0] == 'f',test[0]);
DLIB_TEST(test[1] == 'x');
DLIB_TEST(test[2] == 's');
DLIB_TEST(test[3] == 'd');
test[0] = 'x';
DLIB_TEST(test[0] == 'x');
DLIB_TEST(test[1] == 'x');
DLIB_TEST(test[2] == 's');
DLIB_TEST(test[3] == 'd');
test.rotate_left(1);
DLIB_TEST(test[0] == 'd');
DLIB_TEST(test[1] == 'x');
DLIB_TEST(test[2] == 'x');
DLIB_TEST(test[3] == 's');
DLIB_TEST(test.at_start() == true);
DLIB_TEST(test.current_element_valid() == false);
DLIB_TEST(test.move_next() == true);
DLIB_TEST(test.at_start() == false);
DLIB_TEST(test.current_element_valid() == true);
test.clear();
test2.clear();
DLIB_TEST(test.size() == 0);
DLIB_TEST(test.at_start() == true);
DLIB_TEST(test.current_element_valid() == false);
DLIB_TEST(test.move_next() == false);
DLIB_TEST(test.at_start() == false);
DLIB_TEST(test.current_element_valid() == false);
swap(test,test2);
DLIB_TEST(test2.at_start() == false);
DLIB_TEST(test2.current_element_valid() == false);
DLIB_TEST(test2.move_next() == false);
DLIB_TEST(test2.at_start() == false);
DLIB_TEST(test2.current_element_valid() == false);
DLIB_TEST(test.at_start() == true);
DLIB_TEST(test.current_element_valid() == false);
DLIB_TEST(test.move_next() == false);
DLIB_TEST(test.at_start() == false);
test.set_size(3);
DLIB_TEST(test.size() == 8);
DLIB_TEST(test.at_start() == true);
DLIB_TEST(test.current_element_valid() == false);
DLIB_TEST(test.move_next() == true);
DLIB_TEST(test.at_start() == false);
DLIB_TEST(test.current_element_valid() == true);
test.reset();
DLIB_TEST(test.size() == 8);
DLIB_TEST(test.at_start() == true);
DLIB_TEST(test.current_element_valid() == false);
DLIB_TEST(test.move_next() == true);
DLIB_TEST(test.at_start() == false);
DLIB_TEST(test.current_element_valid() == true);
test.rotate_right(1);
DLIB_TEST(test.size() == 8);
DLIB_TEST(test.at_start() == true);
DLIB_TEST(test.current_element_valid() == false);
DLIB_TEST(test.move_next() == true);
DLIB_TEST(test.at_start() == false);
DLIB_TEST(test.current_element_valid() == true);
test.rotate_left(1);
DLIB_TEST(test.size() == 8);
DLIB_TEST(test.at_start() == true);
DLIB_TEST(test.current_element_valid() == false);
DLIB_TEST(test.move_next() == true);
DLIB_TEST(test.at_start() == false);
DLIB_TEST(test.current_element_valid() == true);
test.reset();
for (unsigned long i = 0; i < test.size(); ++i)
{
test[i] = static_cast<unsigned char>(i);
}
unsigned long count = 0;
while (test.move_next())
{
DLIB_TEST(test.element() == count);
++count;
}
DLIB_TEST(count == test.size());
test2.clear();
ostringstream sout;
istringstream sin;
serialize(test,sout);
sin.str(sout.str());
deserialize(test2,sin);
char ch;
sin >> ch;
DLIB_TEST( !sin);
DLIB_TEST(test2.size() == test.size());
for (unsigned long i = 0; i < test.size(); ++i)
{
DLIB_TEST_MSG(test[i] == test2[i],
"\ni: " << i <<
"\ntest[i]: " << test[i] <<
"\ntest2[i]: " << test2[i]);
}
count = 0;
while (test.move_next() && test2.move_next())
{
DLIB_TEST(test.element() == count);
DLIB_TEST(test2.element() == count);
++count;
}
DLIB_TEST(test2.size() == count);
DLIB_TEST(test.size() == count);
test2.clear();
} // for (int g = 0; g < 2; ++g)
}
void test_circular_buffer()
{
circular_buffer<int> buf;
DLIB_TEST(buf.size() == 0);
buf.assign(4, 0);
DLIB_TEST(buf.size() == 4);
DLIB_TEST(buf[0] == 0);
DLIB_TEST(buf[1] == 0);
DLIB_TEST(buf[2] == 0);
DLIB_TEST(buf[3] == 0);
buf.push_back(1);
DLIB_TEST(buf[0] == 0);
DLIB_TEST(buf[1] == 0);
DLIB_TEST(buf[2] == 0);
DLIB_TEST(buf[3] == 1);
buf.push_back(2);
DLIB_TEST(buf[0] == 0);
DLIB_TEST(buf[1] == 0);
DLIB_TEST(buf[2] == 1);
DLIB_TEST(buf[3] == 2);
buf.push_front(3);
DLIB_TEST(buf[0] == 3);
DLIB_TEST(buf[1] == 0);
DLIB_TEST(buf[2] == 0);
DLIB_TEST(buf[3] == 1);
buf.push_front(4);
DLIB_TEST(buf.front() == 4);
DLIB_TEST(buf[0] == 4);
DLIB_TEST(buf[1] == 3);
DLIB_TEST(buf[2] == 0);
DLIB_TEST(buf[3] == 0);
buf.assign(4, 5);
DLIB_TEST(buf[0] == 5);
DLIB_TEST(buf[1] == 5);
DLIB_TEST(buf[2] == 5);
DLIB_TEST(buf[3] == 5);
buf.push_back(3);
DLIB_TEST(buf[0] == 5);
DLIB_TEST(buf[1] == 5);
DLIB_TEST(buf[2] == 5);
DLIB_TEST(buf[3] == 3);
buf.push_back(2);
DLIB_TEST(buf[0] == 5);
DLIB_TEST(buf[1] == 5);
DLIB_TEST(buf[2] == 3);
DLIB_TEST(buf[3] == 2);
buf.push_back(1);
DLIB_TEST(buf[0] == 5);
DLIB_TEST(buf[1] == 3);
DLIB_TEST(buf[2] == 2);
DLIB_TEST(buf[3] == 1);
buf.push_back(0);
DLIB_TEST(buf[0] == 3);
DLIB_TEST(buf[1] == 2);
DLIB_TEST(buf[2] == 1);
DLIB_TEST(buf[3] == 0);
buf.push_back(-1);
DLIB_TEST(buf.back() == -1);
DLIB_TEST(buf[0] == 2);
DLIB_TEST(buf[1] == 1);
DLIB_TEST(buf[2] == 0);
DLIB_TEST(buf[3] == -1);
buf.resize(1);
buf[0] = 9;
DLIB_TEST(buf.size() == 1);
DLIB_TEST(buf[0] == 9);
buf.push_back(1);
DLIB_TEST(buf[0] == 1);
buf.push_back(4);
DLIB_TEST(buf[0] == 4);
buf.push_front(3);
DLIB_TEST(buf[0] == 3);
buf.clear();
DLIB_TEST(buf.size() == 0);
buf.assign(3, 0);
circular_buffer<int> buf2, buf3;
buf.push_back(1);
buf.push_back(2);
ostringstream sout;
serialize(buf, sout);
istringstream sin(sout.str());
deserialize(buf2, sin);
DLIB_TEST(buf.size() == buf2.size());
for (unsigned long i = 0; i < buf.size(); ++i)
DLIB_TEST(buf[i] == buf2[i]);
buf.swap(buf3);
DLIB_TEST(buf.size() == 0);
DLIB_TEST(buf3.size() == buf2.size());
for (unsigned long i = 0; i < buf3.size(); ++i)
DLIB_TEST(buf3[i] == buf2[i]);
}
class sliding_buffer_tester : public tester
{
public:
sliding_buffer_tester (
) :
tester ("test_sliding_buffer",
"Runs tests on the sliding_buffer component.")
{}
void perform_test (
)
{
dlog << LINFO << "testing kernel_1a";
sliding_buffer_kernel_test<sliding_buffer<unsigned char>::kernel_1a> ();
dlog << LINFO << "testing kernel_1a_c";
sliding_buffer_kernel_test<sliding_buffer<unsigned char>::kernel_1a_c>();
test_circular_buffer();
}
} a;
}
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