svg-pathdata
Version:
Manipulate SVG path data (path[d] attribute content) simply and efficiently.
46 lines • 2.31 kB
JavaScript
import { describe, test, expect } from '@jest/globals';
import { SVGPathData } from '../SVGPathData.js';
function testRemoveCollinear(path) {
const pathData = new SVGPathData(path).removeCollinear();
return pathData.encode();
}
describe('Remove collinear points', () => {
test('Horizontal line with collinear point', () => {
expect(testRemoveCollinear('M10,10 L20,10 L30,10')).toEqual('M10 10L30 10');
});
test('Diagonal line with collinear point', () => {
expect(testRemoveCollinear('M10,10 L20,20 L30,30')).toEqual('M10 10L30 30');
});
test('Vertical line with collinear point', () => {
expect(testRemoveCollinear('M10,10 L10,20 L10,30')).toEqual('M10 10L10 30');
});
test('Multiple collinear sections', () => {
expect(testRemoveCollinear('M10,10 L20,10 L30,10 L40,20 L50,30 L60,40 L60,50 L60,60')).toEqual('M10 10L30 10L60 40L60 60');
});
test('Preserves curves', () => {
expect(testRemoveCollinear('M10,10 C20,20 30,20 40,10 L50,10 L60,10')).toEqual('M10 10C20 20 30 20 40 10L60 10');
});
test('Preserves closed paths', () => {
expect(testRemoveCollinear('M10,10 L20,10 L30,10 L30,20 L10,20 Z')).toEqual('M10 10L30 10L30 20L10 20z');
});
test('Handles multiple subpaths', () => {
expect(testRemoveCollinear('M10,10 L20,10 L30,10 M40,40 L50,40 L60,40')).toEqual('M10 10L30 10M40 40L60 40');
});
// Tests for relative paths
test('Relative horizontal line with collinear point', () => {
expect(testRemoveCollinear('m10,10 l10,0 l10,0')).toEqual('m10 10l20 0');
});
test('Relative diagonal line with collinear point', () => {
expect(testRemoveCollinear('m10,10 l10,10 l10,10')).toEqual('m10 10l20 20');
});
test('Relative vertical line with collinear point', () => {
expect(testRemoveCollinear('m10,10 l0,10 l0,10')).toEqual('m10 10l0 20');
});
test('Mixed relative and absolute commands', () => {
expect(testRemoveCollinear('M10,10 L20,10 l10,0 l10,0')).toEqual('M10 10l30 0');
});
test('Relative multiple collinear sections', () => {
expect(testRemoveCollinear('m10,10 l10,0 l10,0 l10,10 l10,10 l10,10 l0,10 l0,10')).toEqual('m10 10l20 0l30 30l0 20');
});
});
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