mirror of
https://github.com/acamarata/pray-calc-ml.git
synced 2026-06-30 19:04:26 +00:00
bbe1bf5cbc
Weighted least-squares calibration of Islamic prayer time depression angles from observed mosque announcement data. Uses golden-section search to minimize the sum of squared residuals independently for Fajr and Isha. Internal Jean Meeus solar ephemeris — zero runtime dependencies. API: calibrateAngles, scoreAngles, predictFajr, predictIsha. Full TypeScript, dual CJS/ESM via tsup. 32 ESM tests, 6 CJS tests, all passing on Node 20/22/24.
78 lines
2.3 KiB
JavaScript
78 lines
2.3 KiB
JavaScript
/**
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* pray-calc-ml — CJS test suite
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* Focused subset verifying CommonJS imports work correctly.
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*/
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'use strict';
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const assert = require('assert');
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const { calibrateAngles, scoreAngles, predictFajr, predictIsha } = 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 (e) {
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console.error(` ${name}... FAIL: ${e.message}`);
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failed++;
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}
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}
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console.log('\n[CJS] Exports and basic functionality');
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test('all exports are functions', () => {
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assert.strictEqual(typeof calibrateAngles, 'function');
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assert.strictEqual(typeof scoreAngles, 'function');
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assert.strictEqual(typeof predictFajr, 'function');
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assert.strictEqual(typeof predictIsha, 'function');
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});
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// Makkah, summer, UTC+3, ISNA 15°
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const MK = { date: new Date('2024-06-21'), lat: 21.4225, lng: 39.8262, tz: 3 };
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test('predictFajr returns finite number', () => {
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const t = predictFajr(MK.date, MK.lat, MK.lng, MK.tz, 15);
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assert(isFinite(t), `got ${t}`);
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});
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test('predictIsha returns finite number', () => {
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const t = predictIsha(MK.date, MK.lat, MK.lng, MK.tz, 15);
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assert(isFinite(t), `got ${t}`);
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});
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// Build 4 synthetic observations for NY at 15°
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const NY = { lat: 40.7128, lng: -74.006, tz: -4 };
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const dates = [
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new Date('2024-01-15'),
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new Date('2024-04-15'),
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new Date('2024-07-15'),
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new Date('2024-10-15'),
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];
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const obs = dates.map(d => ({
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date: d, lat: NY.lat, lng: NY.lng, tz: NY.tz,
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fajr: predictFajr(d, NY.lat, NY.lng, NY.tz, 15),
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isha: predictIsha(d, NY.lat, NY.lng, NY.tz, 15),
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}));
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test('calibrateAngles recovers 15° angles', () => {
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const r = calibrateAngles(obs);
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assert(Math.abs(r.angles.fajrAngle - 15) < 0.1, `Fajr: ${r.angles.fajrAngle}°`);
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assert(Math.abs(r.angles.ishaAngle - 15) < 0.1, `Isha: ${r.angles.ishaAngle}°`);
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});
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test('scoreAngles perfect score < 0.01 min RMS', () => {
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const s = scoreAngles(obs, 15, 15);
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assert(s.rmsMinutes < 0.01, `rms=${s.rmsMinutes}`);
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});
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test('calibrateAngles result has all expected fields', () => {
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const r = calibrateAngles(obs);
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assert('angles' in r && 'rmsMinutes' in r && 'observationCount' in r && 'residuals' in r);
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});
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console.log('\n' + '─'.repeat(50));
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console.log(`${passed}/${passed + failed} CJS tests passed`);
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if (failed > 0) process.exit(1);
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