import { describe, it, expect } from 'vitest';
import { parseTemperatureStreams, calculateTemperatureMetrics } from '../../src/utils/temperature-metrics.js';
describe('temperature-metrics', () => {
describe('parseTemperatureStreams', () => {
it('should parse valid stream data', () => {
const streams = [
{
type: 'time',
data: [0, 1, 2, 3, 4],
},
{
type: 'temp',
data: [18.5, 19.0, 19.5, 20.0, 20.5],
},
];
const result = parseTemperatureStreams(streams);
expect(result).not.toBeNull();
expect(result?.time).toEqual([0, 1, 2, 3, 4]);
expect(result?.temp).toEqual([18.5, 19.0, 19.5, 20.0, 20.5]);
});
it('should return null if time stream is missing', () => {
const streams = [
{
type: 'temp',
data: [18.5, 19.0, 19.5],
},
];
const result = parseTemperatureStreams(streams);
expect(result).toBeNull();
});
it('should return null if temp stream is missing', () => {
const streams = [
{
type: 'time',
data: [0, 1, 2, 3],
},
];
const result = parseTemperatureStreams(streams);
expect(result).toBeNull();
});
it('should return null if both streams are missing', () => {
const streams = [
{
type: 'power',
data: [100, 200, 300],
},
];
const result = parseTemperatureStreams(streams);
expect(result).toBeNull();
});
it('should handle empty streams array', () => {
const streams: { type: string; data: number[] }[] = [];
const result = parseTemperatureStreams(streams);
expect(result).toBeNull();
});
it('should handle streams with additional fields', () => {
const streams = [
{
type: 'time',
data: [0, 1],
name: null,
valueType: 'java.lang.Integer',
},
{
type: 'temp',
data: [18.5, 19.5],
name: null,
valueType: 'java.lang.Float',
},
];
const result = parseTemperatureStreams(streams);
expect(result).not.toBeNull();
expect(result?.time).toEqual([0, 1]);
expect(result?.temp).toEqual([18.5, 19.5]);
});
});
describe('calculateTemperatureMetrics', () => {
it('should calculate all temperature metrics correctly', () => {
const timeData = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
const tempData = [18.5, 19.0, 19.5, 20.0, 20.5, 21.0, 21.5, 22.0, 22.5, 23.0];
const metrics = calculateTemperatureMetrics(timeData, tempData);
expect(metrics.min_ambient_temperature).toBe(18.5);
expect(metrics.max_ambient_temperature).toBe(23.0);
expect(metrics.start_ambient_temperature).toBe(18.5);
expect(metrics.end_ambient_temperature).toBe(23.0);
// Median of [18.5, 19.0, 19.5, 20.0, 20.5, 21.0, 21.5, 22.0, 22.5, 23.0] (sorted)
// Even number of elements (10), so median = (20.5 + 21.0) / 2 = 20.75
// Rounded to 1 decimal: Math.round(20.75 * 10) / 10 = 20.8
expect(metrics.median_ambient_temperature).toBe(20.8);
});
it('should handle single value correctly', () => {
const timeData = [0];
const tempData = [20.5];
const metrics = calculateTemperatureMetrics(timeData, tempData);
expect(metrics.min_ambient_temperature).toBe(20.5);
expect(metrics.max_ambient_temperature).toBe(20.5);
expect(metrics.median_ambient_temperature).toBe(20.5);
expect(metrics.start_ambient_temperature).toBe(20.5);
expect(metrics.end_ambient_temperature).toBe(20.5);
});
it('should round values to 1 decimal place', () => {
const timeData = [0, 1, 2];
const tempData = [18.456, 19.789, 20.123];
const metrics = calculateTemperatureMetrics(timeData, tempData);
// Check that values are rounded to 1 decimal
expect(metrics.min_ambient_temperature.toString()).toMatch(/^\d+\.\d$/);
expect(metrics.max_ambient_temperature.toString()).toMatch(/^\d+\.\d$/);
expect(metrics.median_ambient_temperature.toString()).toMatch(/^\d+\.\d$/);
expect(metrics.start_ambient_temperature.toString()).toMatch(/^\d+\.\d$/);
expect(metrics.end_ambient_temperature.toString()).toMatch(/^\d+\.\d$/);
});
it('should handle empty arrays', () => {
const timeData: number[] = [];
const tempData: number[] = [];
const metrics = calculateTemperatureMetrics(timeData, tempData);
expect(metrics.min_ambient_temperature).toBe(0);
expect(metrics.max_ambient_temperature).toBe(0);
expect(metrics.median_ambient_temperature).toBe(0);
expect(metrics.start_ambient_temperature).toBe(0);
expect(metrics.end_ambient_temperature).toBe(0);
});
it('should handle negative temperatures', () => {
const timeData = [0, 1, 2, 3, 4];
const tempData = [-2.5, -1.0, 0.0, 1.5, 3.0];
const metrics = calculateTemperatureMetrics(timeData, tempData);
expect(metrics.min_ambient_temperature).toBe(-2.5);
expect(metrics.max_ambient_temperature).toBe(3.0);
expect(metrics.start_ambient_temperature).toBe(-2.5);
expect(metrics.end_ambient_temperature).toBe(3.0);
// Median of [-2.5, -1.0, 0.0, 1.5, 3.0] = 0.0
expect(metrics.median_ambient_temperature).toBe(0.0);
});
it('should handle mixed positive and negative temperatures', () => {
const timeData = [0, 1, 2];
const tempData = [5.0, -3.0, 2.0];
const metrics = calculateTemperatureMetrics(timeData, tempData);
expect(metrics.min_ambient_temperature).toBe(-3.0);
expect(metrics.max_ambient_temperature).toBe(5.0);
expect(metrics.start_ambient_temperature).toBe(5.0);
expect(metrics.end_ambient_temperature).toBe(2.0);
// Median of [5.0, -3.0, 2.0] sorted = [-3.0, 2.0, 5.0] = 2.0
expect(metrics.median_ambient_temperature).toBe(2.0);
});
it('should throw error when arrays have different lengths', () => {
const timeData = [0, 1, 2];
const tempData = [18.5, 19.0]; // Mismatched length
expect(() => calculateTemperatureMetrics(timeData, tempData)).toThrow(
'Time and temperature data arrays must have the same length'
);
});
it('should handle water temperature for swimming (cold water)', () => {
const timeData = [0, 1, 2, 3, 4];
const tempData = [14.0, 14.5, 15.0, 15.5, 16.0]; // Cold water temp
const metrics = calculateTemperatureMetrics(timeData, tempData);
expect(metrics.min_ambient_temperature).toBe(14.0);
expect(metrics.max_ambient_temperature).toBe(16.0);
expect(metrics.start_ambient_temperature).toBe(14.0);
expect(metrics.end_ambient_temperature).toBe(16.0);
});
it('should handle hot weather temperatures', () => {
const timeData = [0, 1, 2, 3, 4];
const tempData = [32.0, 33.5, 35.0, 36.5, 38.0]; // Hot weather
const metrics = calculateTemperatureMetrics(timeData, tempData);
expect(metrics.min_ambient_temperature).toBe(32.0);
expect(metrics.max_ambient_temperature).toBe(38.0);
expect(metrics.start_ambient_temperature).toBe(32.0);
expect(metrics.end_ambient_temperature).toBe(38.0);
});
});
});
