mirror of
https://github.com/mauriceboe/TREK.git
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elmocito
66 lines
3.0 KiB
TypeScript
66 lines
3.0 KiB
TypeScript
import { describe, expect, it } from 'vitest'
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import { analyzeRouteGeometry, focusRouteProfileAtDistance, parseRenderableRouteGeometry } from './routeGeometry'
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describe('analyzeRouteGeometry', () => {
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it('shares a validated rendering parser that retains valid elevation values', () => {
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expect(parseRenderableRouteGeometry('[[48,11,512.125],[48.01,11.02,520.75]]'))
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.toEqual([[48, 11, 512.125], [48.01, 11.02, 520.75]])
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})
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it('derives distance, elevation extrema, gain, loss and cumulative-distance samples together', () => {
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const analysis = analyzeRouteGeometry(JSON.stringify([
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[0, 0, 100],
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[0, 0.01, 130],
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[0, 0.03, 110],
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]))
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expect(analysis).not.toBeNull()
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expect(analysis!.routeCoordinates).toEqual([[0, 0], [0, 0.01], [0, 0.03]])
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expect(analysis!.distanceKm).toBeCloseTo(3.3358, 3)
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expect(analysis!.minEle).toBe(100)
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expect(analysis!.maxEle).toBe(130)
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expect(analysis!.gain).toBe(30)
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expect(analysis!.loss).toBe(20)
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expect(analysis!.distanceIndexedProfileSamples).toHaveLength(3)
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expect(analysis!.distanceIndexedProfileSamples[1]).toMatchObject({ lat: 0, lng: 0.01 })
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expect(analysis!.distanceIndexedProfileSamples[1].distanceMeters).toBeCloseTo(1111.95, 1)
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expect(analysis!.distanceIndexedProfileSamples[2].distanceMeters).toBeCloseTo(3335.85, 1)
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})
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it('maps route endpoints and interpolates focus between prepared samples', () => {
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const samples = [
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{ distanceMeters: 0, elevationMeters: 100, lat: 10, lng: 20 },
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{ distanceMeters: 100, elevationMeters: 200, lat: 12, lng: 24 },
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{ distanceMeters: 300, elevationMeters: 300, lat: 14, lng: 28 },
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]
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expect(focusRouteProfileAtDistance(samples, -20)).toMatchObject({ distanceMeters: 0, elevationMeters: 100, lat: 10, lng: 20, sampleIndex: 0 })
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expect(focusRouteProfileAtDistance(samples, 150)).toMatchObject({ distanceMeters: 150, elevationMeters: 225, lat: 12.5, lng: 25, sampleIndex: 1 })
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expect(focusRouteProfileAtDistance(samples, 500)).toMatchObject({ distanceMeters: 300, elevationMeters: 300, lat: 14, lng: 28, sampleIndex: 2 })
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})
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it('does not create geographic focus for samples without coordinates', () => {
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expect(focusRouteProfileAtDistance([
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{ distanceMeters: 0, elevationMeters: 100 },
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{ distanceMeters: 10, elevationMeters: 110 },
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], 5)).toBeNull()
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})
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it('keeps distance but omits all elevation outputs when any point lacks elevation', () => {
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const analysis = analyzeRouteGeometry(JSON.stringify([
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[48, 11, 500],
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[48.01, 11.01],
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]))
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expect(analysis?.distanceKm).toBeGreaterThan(0)
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expect(analysis?.minEle).toBeNull()
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expect(analysis?.maxEle).toBeNull()
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expect(analysis?.gain).toBeNull()
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expect(analysis?.loss).toBeNull()
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expect(analysis?.distanceIndexedProfileSamples).toEqual([])
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})
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it.each([undefined, null, '', 'not json', '[]', '[[0,0]]', '[[0,"bad"],[1,1]]'])('returns null for unusable geometry %s', geometry => {
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expect(analyzeRouteGeometry(geometry)).toBeNull()
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})
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})
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