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Rewrite xs/t/10_line.t to c++

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Martin Šach 2023-12-15 15:42:36 +01:00 committed by SachCZ
parent 87e9538993
commit f78ab3e788
3 changed files with 60 additions and 66 deletions
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1
tests/libslic3r/CMakeLists.txt
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@ -2,6 +2,7 @@ get_filename_component(_TEST_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
add_executable(${_TEST_NAME}_tests
${_TEST_NAME}_tests.cpp
test_line.cpp
test_3mf.cpp
test_aabbindirect.cpp
test_kdtreeindirect.cpp

59
tests/libslic3r/test_line.cpp Normal file
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@ -0,0 +1,59 @@
/**
* Ported from xs/t/10_line.t
*/
#include <catch2/catch.hpp>
#include <libslic3r/Line.hpp>
#include "test_utils.hpp"
using namespace Slic3r;
TEST_CASE("Line can be translated", "[Line]") {
Line line{{100, 100}, {200, 100}};
line.translate(10, -5);
CHECK(Points{line.a, line.b} == Points{{110, 95}, {210, 95}});
}
TEST_CASE("Check if lines are parallel", "[Line]") {
CHECK(Line{{0, 0}, {100, 0}}.parallel_to(Line{{200, 200}, {0, 200}}));
}
TEST_CASE("Parallel lines under angles", "[Line]") {
auto base_angle = GENERATE(0, M_PI/3, M_PI/2, M_PI);
Line line{{0, 0}, {100, 0}};
line.rotate(base_angle, {0, 0});
Line clone{line};
INFO("Line is parallel to self");
CHECK(line.parallel_to(clone));
clone.reverse();
INFO("Line is parallel to self + PI");
CHECK(line.parallel_to(clone));
INFO("Line is parallel to its direction");
CHECK(line.parallel_to(line.direction()));
INFO("Line is parallel to its direction + PI");
line.parallel_to(line.direction() + M_PI);
INFO("line is parallel to its direction - PI")
line.parallel_to(line.direction() - M_PI);
SECTION("Line is parallel within epsilon") {
clone = line;
clone.rotate(EPSILON/2, {0, 0});
CHECK(line.parallel_to(clone));
clone = line;
clone.rotate(-EPSILON/2, {0, 0});
CHECK(line.parallel_to(clone));
}
}
TEST_CASE("Intersection infinite", "[Line]") {
const Line a{{100, 0}, {200, 0}};
const Line b{{300, 300}, {300, 100}};
Point r;
a.intersection_infinite(b, &r);
CHECK(r == Point{300, 0});
}

66
xs/t/10_line.t
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@ -1,66 +0,0 @@
#!/usr/bin/perl
use strict;
use warnings;
use Slic3r::XS;
use Test::More tests => 35;
use constant PI => 4 * atan2(1, 1);
use constant EPSILON => 1E-4;
my $points = [
[100, 100],
[200, 100],
];
my $line = Slic3r::Line->new(@$points);
{
my $clone = $line->clone;
$clone->translate(10, -5);
is_deeply $clone->pp, [
[110, 95],
[210, 95],
], 'translate';
}
{
ok +Slic3r::Line->new([0,0],[200,0])->parallel_to_line(Slic3r::Line->new([200,200],[0,200])), 'parallel_to';
}
foreach my $base_angle (0, PI/4, PI/2, PI) {
my $line = Slic3r::Line->new([0,0], [100,0]);
$line->rotate($base_angle, [0,0]);
my $clone = $line->clone;
ok $line->parallel_to_line($clone), 'line is parallel to self';
$clone->reverse;
ok $line->parallel_to_line($clone), 'line is parallel to self + PI';
ok $line->parallel_to($line->direction), 'line is parallel to its direction';
ok $line->parallel_to($line->direction + PI), 'line is parallel to its direction + PI';
ok $line->parallel_to($line->direction - PI), 'line is parallel to its direction - PI';
{
my $line2 = $line->clone;
$line2->reverse;
ok $line->parallel_to_line($line2), 'line is parallel to its opposite';
}
{
my $line2 = $line->clone;
$line2->rotate(+(EPSILON)/2, [0,0]);
ok $line->parallel_to_line($line2), 'line is parallel within epsilon';
}
{
my $line2 = $line->clone;
$line2->rotate(-(EPSILON)/2, [0,0]);
ok $line->parallel_to_line($line2), 'line is parallel within epsilon';
}
}
{
my $a = Slic3r::Line->new([100, 0], [200, 0]);
my $b = Slic3r::Line->new([300, 300], [300, 100]);
my $r = $a->intersection_infinite($b);
is_deeply $r->pp, [300, 0], 'intersection_infinite';
}
__END__