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#include "test.h"
#include <random>
using namespace std;
#include "navigation.h"
TEST_CASE("basic setup") {
Navigation navi;
CHECK(!navi.at_end());
CHECK(navi.at_line_start());
CHECK(navi.cur() == 0);
Navigation copy(navi);
CHECK(!navi.at_end());
CHECK(navi.at_line_start());
CHECK(navi.cur() == 0);
}
TEST_CASE("move above 0") {
Navigation navi;
CHECK(navi.cur() == 0);
navi.up();
CHECK(navi.cur() == 0);
navi.page_up();
CHECK(navi.cur() == 0);
}
TEST_CASE("goto tab") {
Navigation navi;
navi.goto_pos(0);
CHECK(navi.tab() == 0);
CHECK(navi.at_line_start());
navi.goto_pos(10);
CHECK(navi.tab() == 0);
navi.goto_pos(15);
CHECK(navi.tab() == 0);
navi.goto_pos(30);
CHECK(navi.tab() == 0);
CHECK(navi.at_line_start());
navi.goto_pos(40);
CHECK(navi.tab() == 40);
CHECK(!navi.at_line_start());
navi.goto_pos(60);
CHECK(navi.tab() == 40);
navi.goto_pos(90);
CHECK(navi.tab() == 80);
}
TEST_CASE("goto and jump") {
Navigation navi;
navi.goto_line(10, false);
CHECK(navi.cur() == 10);
navi.goto_line(20, true);
CHECK(navi.cur() == 20);
navi.jump_back();
navi.goto_line(30, true);
CHECK(navi.cur() == 30);
navi.jump_back();
CHECK(navi.cur() == 10);
navi.jump_back();
CHECK(navi.cur() == 30);
navi.end();
CHECK(navi.cur() == G::NO_POS);
CHECK(navi.at_end());
}
size_t nice(size_t pos) {
if (pos == G::NO_POS) return 0;
return pos;
}
void set_view(Navigation* navi, const set<size_t>& full) {
size_t cur = navi->cur();
vector<size_t> view;
view.resize(51, G::NO_POS);
auto it_down = full.lower_bound(cur);
auto it_up = it_down;
size_t p = 24;
while (it_up != full.begin()) {
--it_up;
view[p] = *it_up;
if (p == 0) break;
--p;
}
for (size_t i = 25; i < 51; ++i) {
if (it_down != full.end()) view[i] = *it_down;
else break;
++it_down;
}
/* trace array
for (size_t i = 0; i < 51 ; ++i) {
cout << i << ": " << nice(view[i]) << " ";
}
cout << endl;*/
navi->set_view(view);
}
TEST_CASE("move around") {
mt19937 rng(random_device{}());
for (int i = 0; i < 1000; ++i) {
unique_ptr<Navigation> navi(new Navigation());
set<size_t> fullview;
uniform_int_distribution<size_t> move_dist(0, 6);
uniform_int_distribution<size_t> len_dist(1, 15);
uniform_int_distribution<size_t> percent_dist(1, 100);
size_t len = len_dist(rng);
len *= len * len;
size_t percent = percent_dist(rng);
uniform_int_distribution<size_t> pos_dist(0, len - 1);
for (size_t j = 0; j < len; ++j) {
if (percent_dist(rng) < percent) {
fullview.insert(j);
}
}
for (int j = 0; j < 100; ++j) {
set_view(navi.get(), fullview);
size_t move = move_dist(rng);
size_t cur = navi->cur();
if (move == 0) {
auto it = fullview.lower_bound(cur);
navi->up();
if (fullview.empty()) {
CHECK(navi->cur() == G::NO_POS);
} else if (it == fullview.begin()) {
CHECK(navi->cur() == *it);
} else {
--it;
CHECK(navi->cur() == *it);
}
} else if (move == 1) {
auto it = fullview.upper_bound(cur);
navi->down();
if (it == fullview.end()) {
if (fullview.empty()) CHECK(navi->cur() == G::NO_POS);
else {
--it;
CHECK(navi->cur() == *it);
}
} else {
CHECK(navi->cur() == *it);
}
} else if (move == 2) {
size_t pos = pos_dist(rng);
navi->goto_line(pos, false);
CHECK(navi->cur() == pos);
} else if (move == 3) {
navi->start();
CHECK(navi->cur() == 0);
} else if (move == 4) {
navi->end();
CHECK(navi->cur() == G::NO_POS);
} else if (move == 5) {
auto it = fullview.lower_bound(cur);
navi->page_up();
for (size_t k = 0; k < 24; ++k) {
if (it == fullview.begin()) break;
--it;
}
if (fullview.empty()) {
CHECK(navi->cur() == G::NO_POS);
} else if (it == fullview.begin()) {
CHECK(navi->cur() == *it);
} else {
--it;
CHECK(navi->cur() == *it);
}
} else if (move == 6) {
auto it = fullview.lower_bound(cur);
navi->page_down();
for (size_t k = 0; k < 25; ++k) {
if (it == fullview.end()) break;
++it;
}
if (it == fullview.end()) {
if (fullview.empty()) CHECK(navi->cur() == G::NO_POS);
else {
--it;
CHECK(navi->cur() == *it);
}
} else {
CHECK(navi->cur() == *it);
}
}
}
}
}
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