31 lines
843 B
TypeScript
31 lines
843 B
TypeScript
import { describe, expect, it } from 'vitest'
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import { buildPointerTrace } from './trace'
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describe('buildPointerTrace', () => {
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it('returns no movement when the pointer is already at the target', () => {
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expect(buildPointerTrace({
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from: { x: 180, y: 150 },
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to: { x: 180, y: 150 },
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})).toEqual([])
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})
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it('removes consecutive duplicate rounded points while preserving the final target', () => {
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const trace = buildPointerTrace({
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from: { x: 179, y: 149 },
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steps: 20,
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to: { x: 180, y: 150 },
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})
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expect(trace.length).toBeGreaterThan(0)
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expect(trace.at(-1)).toMatchObject({ x: 180, y: 150 })
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for (let index = 1; index < trace.length; index += 1) {
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expect(trace[index]).not.toMatchObject({
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x: trace[index - 1].x,
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y: trace[index - 1].y,
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})
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}
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})
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})
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