Alibaba Cloud Supabase MCP Server

import { describe, expect, it } from 'vitest'; import { EARTH_RADIUS, getClosestAwsRegion, getCountryCode, getCountryCoordinates, getDistance, TRACE_URL, } from './regions.js'; import { http, HttpResponse } from 'msw'; import { setupServer } from 'msw/node'; const COUNTRY_CODE = 'US'; describe('getDistance', () => { it('should return 0 for the same coordinates', () => { const point = { lat: 50, lng: 50 }; expect(getDistance(point, point)).toBe(0); }); it('should calculate distance between two points correctly', () => { // New York City coordinates const nyc = { lat: 40.7128, lng: -74.006 }; // Los Angeles coordinates const la = { lat: 34.0522, lng: -118.2437 }; // Approximate distance between NYC and LA is ~3940 km const distance = getDistance(nyc, la); expect(distance).toBeCloseTo(3940, -2); // Allow ~100km margin }); it('should handle coordinates at opposite sides of the Earth', () => { const point1 = { lat: 0, lng: 0 }; const point2 = { lat: 0, lng: 180 }; // Half circumference of Earth const expectedDistance = Math.PI * EARTH_RADIUS; expect(getDistance(point1, point2)).toBeCloseTo(expectedDistance, 0); }); it('should handle negative coordinates', () => { const sydney = { lat: -33.8688, lng: 151.2093 }; const buenosAires = { lat: -34.6037, lng: -58.3816 }; // Approximate distance between Sydney and Buenos Aires is ~11800 km const distance = getDistance(sydney, buenosAires); expect(distance).toBeCloseTo(11800, -2); // Allow ~100km margin }); it('should handle coordinates at the equator', () => { const point1 = { lat: 0, lng: 0 }; const point2 = { lat: 0, lng: 180 }; const expectedDistance = Math.PI * EARTH_RADIUS; // Half circumference expect(getDistance(point1, point2)).toBeCloseTo(expectedDistance, 0); }); it('should be symmetrical (a to b equals b to a)', () => { const london = { lat: 51.5074, lng: -0.1278 }; const tokyo = { lat: 35.6762, lng: 139.6503 }; const distanceAtoB = getDistance(london, tokyo); const distanceBtoA = getDistance(tokyo, london); expect(distanceAtoB).toEqual(distanceBtoA); }); }); describe('getClosestRegion', () => { it('should find the closest AWS region to a specific location', () => { const tokyo = { lat: 35.6762, lng: 139.6503 }; const result = getClosestAwsRegion(tokyo); expect(result.code).toBe('ap-northeast-1'); // Tokyo region }); it('should find the correct AWS region for European location', () => { const london = { lat: 51.5074, lng: -0.1278 }; const result = getClosestAwsRegion(london); expect(result.code).toBe('eu-west-2'); // London region }); it('should find the correct AWS region for US West Coast location', () => { const sanFrancisco = { lat: 37.7749, lng: -122.4194 }; const result = getClosestAwsRegion(sanFrancisco); expect(result.code).toBe('us-west-1'); // North California region }); it('should find the correct AWS region for Sydney location', () => { const sydney = { lat: -33.8688, lng: 151.2093 }; const result = getClosestAwsRegion(sydney); expect(result.code).toBe('ap-southeast-2'); // Sydney region }); it('should find the correct AWS region for a location in South America', () => { const saoPaulo = { lat: -23.5505, lng: -46.6333 }; const result = getClosestAwsRegion(saoPaulo); expect(result.code).toBe('sa-east-1'); // São Paulo region }); }); describe('getCountryCode', () => { const handlers = [ http.get(TRACE_URL, () => { return HttpResponse.text( `fl=123abc\nvisit_scheme=https\nloc=${COUNTRY_CODE}\ntls=TLSv1.3\nhttp=http/2` ); }), ]; const server = setupServer(...handlers); server.listen({ onUnhandledRequest: 'error' }); it('should return the correct country code for a given location', async () => { const code = await getCountryCode(); expect(code).toEqual(COUNTRY_CODE); }); }); describe('getCountryCoordinates', () => { it('should throw an error for an invalid country code', async () => { const invalidCountryCode = 'INVALID_CODE'; expect(() => getCountryCoordinates(invalidCountryCode)).toThrowError( /unknown location code/ ); }); it('should return coordinates for a valid country code', () => { const result = getCountryCoordinates('US'); expect(result).toEqual({ lat: 38, lng: -97 }); }); });