mirror of
https://github.com/acamarata/moon-sighting.git
synced 2026-06-30 19:04:24 +00:00
b46ba2a74c
High-accuracy lunar crescent visibility using JPL DE442S ephemerides. Implements Yallop q-test and Odeh V-parameter with all five crescent geometry quantities (ARCL, ARCV, DAZ, W, lag). Full time scale chain (UTC → TDB), IERS Q·R·W frame transforms, WGS84 observer model, Bennett refraction, and kernel-free moon phase via Meeus approximation.
90 lines
2.4 KiB
JavaScript
90 lines
2.4 KiB
JavaScript
'use strict'
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/**
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* moon-calc CJS test suite
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* Runs with: node test-cjs.cjs
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* Verifies the CommonJS build is functional.
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*/
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const assert = require('node:assert/strict')
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const {
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YALLOP_THRESHOLDS,
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YALLOP_DESCRIPTIONS,
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ODEH_THRESHOLDS,
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ODEH_DESCRIPTIONS,
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WGS84,
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getMoonPhase,
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initKernels,
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downloadKernels,
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verifyKernels,
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getMoonSightingReport,
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getSunMoonEvents,
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} = require('./dist/index.cjs')
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let passed = 0
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let failed = 0
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function test(name, fn) {
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try {
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fn()
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console.log(` [${name}]... PASS`)
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passed++
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} catch (err) {
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console.error(` [${name}]... FAIL: ${err.message}`)
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failed++
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}
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}
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console.log('CJS compatibility:')
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test('require() works', () => {
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assert.ok(YALLOP_THRESHOLDS !== undefined)
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})
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test('YALLOP_THRESHOLDS.A is 0.216', () => {
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assert.equal(YALLOP_THRESHOLDS.A, 0.216)
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})
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test('ODEH_THRESHOLDS.A is 5.65', () => {
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assert.equal(ODEH_THRESHOLDS.A, 5.65)
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})
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test('WGS84.a is 6378137.0', () => {
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assert.equal(WGS84.a, 6378137.0)
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})
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test('All API functions are exported', () => {
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assert.equal(typeof getMoonPhase, 'function')
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assert.equal(typeof initKernels, 'function')
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assert.equal(typeof downloadKernels, 'function')
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assert.equal(typeof verifyKernels, 'function')
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assert.equal(typeof getMoonSightingReport, 'function')
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assert.equal(typeof getSunMoonEvents, 'function')
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})
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console.log('\nCJS getMoonPhase:')
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test('getMoonPhase returns valid phase', () => {
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const valid = new Set([
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'new-moon', 'waxing-crescent', 'first-quarter', 'waxing-gibbous',
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'full-moon', 'waning-gibbous', 'last-quarter', 'waning-crescent',
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])
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const p = getMoonPhase(new Date('2025-03-14T12:00:00Z'))
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assert.ok(valid.has(p.phase), `got: ${p.phase}`)
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})
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test('getMoonPhase illumination in [0, 100]', () => {
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const p = getMoonPhase(new Date('2025-03-01T12:00:00Z'))
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assert.ok(p.illumination >= 0 && p.illumination <= 100)
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})
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test('getMoonPhase near full moon has high illumination', () => {
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const p = getMoonPhase(new Date('2025-03-14T12:00:00Z'))
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assert.ok(p.illumination > 85, `illumination=${p.illumination.toFixed(1)}%`)
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})
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test('getMoonPhase Dates are Date objects', () => {
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const p = getMoonPhase(new Date('2025-03-01T12:00:00Z'))
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assert.ok(p.nextNewMoon instanceof Date)
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assert.ok(p.prevNewMoon instanceof Date)
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assert.ok(p.nextFullMoon instanceof Date)
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})
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console.log(`\n${passed + failed} tests: ${passed} passed, ${failed} failed`)
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if (failed > 0) {
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process.exit(1)
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}
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