Files
PolyWeather/frontend/components/dashboard/scan-terminal/__tests__/cityFallbackRows.test.ts
T

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TypeScript

import { cityListItemsToScanRows } from "@/components/dashboard/scan-terminal/city-fallback-rows";
import type { CityListItem } from "@/lib/dashboard-types";
function assert(condition: unknown, message: string) {
if (!condition) throw new Error(message);
}
export function runTests() {
const fs = require("node:fs") as typeof import("node:fs");
const path = require("node:path") as typeof import("node:path");
const dashboardSource = fs.readFileSync(
path.join(process.cwd(), "components", "dashboard", "ScanTerminalDashboard.tsx"),
"utf8",
);
const cities: CityListItem[] = [
{
airport: "Taipei Songshan",
display_name: "Taipei",
icao: "RCSS",
lat: 25.0697,
lon: 121.5525,
name: "taipei",
risk_level: "medium",
temp_unit: "celsius",
utc_offset_seconds: 28800,
},
{
airport: "LaGuardia",
display_name: "New York",
icao: "KLGA",
lat: 40.7769,
lon: -73.874,
name: "new york",
risk_level: "low",
temp_unit: "fahrenheit",
utc_offset_seconds: -14400,
},
];
const rows = cityListItemsToScanRows(cities);
assert(rows.length === 2, "fallback rows should preserve every city");
assert(rows[0].id === "city-fallback:taipei", "fallback row id should be stable");
assert(rows[0].city === "taipei", "fallback row should keep canonical city key");
assert(rows[0].city_display_name === "Taipei", "fallback row should keep display name");
assert(rows[0].airport === "Taipei Songshan", "fallback row should expose airport for selector display");
assert(rows[0].trading_region === "east_asia", "fallback row should derive region from timezone");
assert(rows[0].temp_symbol === "°C", "celsius cities should use °C");
assert(rows[1].trading_region === "north_america", "known cities should keep their configured product region");
assert(rows[1].temp_symbol === "°F", "fahrenheit cities should use °F");
assert(
dashboardSource.includes("cityListItemsToScanRows") &&
dashboardSource.includes("/api/cities") &&
dashboardSource.includes("cityFallbackRows"),
"terminal dashboard should use /api/cities fallback rows when scan terminal rows are not ready",
);
}