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Add corner‑case tests for core overlay #41

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Merged
NailxSharipov merged 3 commits into from
Jan 23, 2026
Merged

Add corner‑case tests for core overlay #41

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9802ccc
add corner‑case tests for core overlay
mikhailofff Jan 23, 2026
6f45ec9
remove unnecessary extern
mikhailofff Jan 23, 2026
75fd225
provide a subject definition in a single format
mikhailofff Jan 23, 2026
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111 changes: 102 additions & 9 deletions iOverlay/src/core/overlay.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -419,24 +419,24 @@ impl IntOverlayOptions {

#[cfg(test)]
mod tests {
extern crate std;

use alloc::vec;
use i_float::int::point::IntPoint;
use i_shape::int::area::Area;
use i_shape::int::shape::IntContour;
use crate::core::fill_rule::FillRule;
use crate::core::overlay::Overlay;
use crate::core::overlay_rule::OverlayRule;

#[test]
fn test_0() {
let subj = [[
IntPoint::new(0, 0),
IntPoint::new(10, 0),
IntPoint::new(10, 10),
IntPoint::new(0, 10),
]
.to_vec()];
let subj = [
vec![
IntPoint::new(0, 0),
IntPoint::new(10, 0),
IntPoint::new(10, 10),
IntPoint::new(0, 10),
],
];

let mut overlay = Overlay::with_contours(&subj, &[]);
let result = overlay.overlay(OverlayRule::Subject, FillRule::EvenOdd);
Expand Down Expand Up @@ -753,4 +753,97 @@ mod tests {
assert_eq!(result[0].len(), 1);
assert_eq!(result.area(), -14);
}

#[test]
fn test_12() {
let subj = [
vec![
IntPoint::new(2, 0),
IntPoint::new(5, 0),
IntPoint::new(5, 5),
IntPoint::new(2, 5),
],
vec![
IntPoint::new(0, 0),
IntPoint::new(5, 0),
IntPoint::new(5, 5),
IntPoint::new(0, 5),
],
];

let mut overlay = Overlay::with_contours(&subj, &[]);
let result = overlay.overlay(OverlayRule::Subject, FillRule::NonZero);

assert_eq!(result.len(), 1);
assert_eq!(result[0].len(), 1);
assert_eq!(result.area(), -25);
}

#[test]
fn test_13() {
let subj = [
vec![
IntPoint::new(0, 0),
IntPoint::new(5, 0),
IntPoint::new(5, 5),
IntPoint::new(0, 5),
],
vec![
IntPoint::new(0, 0),
IntPoint::new(5, 0),
IntPoint::new(5, 5),
IntPoint::new(0, 5),
],
];

let mut overlay = Overlay::with_contours(&subj, &[]);
let result = overlay.overlay(OverlayRule::Subject, FillRule::NonZero);

assert_eq!(result.len(), 1);
assert_eq!(result[0].len(), 1);
assert_eq!(result.area(), -25);
}

#[test]
fn test_14() {
let subj = [
vec![
IntPoint::new(0, 0),
IntPoint::new(0, 2),
IntPoint::new(2, 0),
],
vec![
IntPoint::new(0, 0),
IntPoint::new(2, 0),
IntPoint::new(0, -2),
],
vec![
IntPoint::new(0, 0),
IntPoint::new(0, -2),
IntPoint::new(-2, 0),
],
vec![
IntPoint::new(0, 0),
IntPoint::new(-2, 0),
IntPoint::new(0, 2),
],
];

let mut overlay = Overlay::with_contours(&subj, &[]);
let result = overlay.overlay(OverlayRule::Subject, FillRule::NonZero);

assert_eq!(result.len(), 1);
assert_eq!(result[0].len(), 1);
assert_eq!(result.area(), -8);
}

#[test]
fn test_empty_input() {
let subj: &[IntContour] = &[];

let mut overlay = Overlay::with_contours(&subj, &[]);
let result = overlay.overlay(OverlayRule::Subject, FillRule::NonZero);

assert_eq!(result.len(), 0);
}
}