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Add a "Frequencies" column to the radio frequency devices (proxy) list so users can see which frequency bands each transmitter supports. The supported frequency ranges are formatted into a human-readable, locale-aware string (picking Hz/kHz/MHz/GHz automatically) with a helper in the data layer. Claude-Session: https://claude.ai/code/session_01SYyMTtBdrt7EBrVEt869Uw Co-authored-by: Claude <noreply@anthropic.com>
71 lines
1.9 KiB
TypeScript
71 lines
1.9 KiB
TypeScript
import { describe, expect, it } from "vitest";
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import {
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formatFrequency,
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formatFrequencyRange,
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formatFrequencyRanges,
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} from "../../src/data/radio_frequency";
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import {
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DateFormat,
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FirstWeekday,
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type FrontendLocaleData,
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NumberFormat,
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TimeFormat,
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TimeZone,
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} from "../../src/data/translation";
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const locale: FrontendLocaleData = {
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language: "en",
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number_format: NumberFormat.language,
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time_format: TimeFormat.language,
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date_format: DateFormat.language,
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time_zone: TimeZone.local,
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first_weekday: FirstWeekday.language,
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};
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describe("formatFrequency", () => {
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it("picks the largest unit that keeps the value >= 1", () => {
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expect(formatFrequency(50, locale)).toBe("50 Hz");
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expect(formatFrequency(2400, locale)).toBe("2.4 kHz");
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expect(formatFrequency(433_920_000, locale)).toBe("433.92 MHz");
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expect(formatFrequency(2_400_000_000, locale)).toBe("2.4 GHz");
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});
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it("rounds to at most three fractional digits", () => {
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expect(formatFrequency(868_300_000, locale)).toBe("868.3 MHz");
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expect(formatFrequency(123_456_789, locale)).toBe("123.457 MHz");
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});
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});
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describe("formatFrequencyRange", () => {
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it("collapses a range to a single value when min equals max", () => {
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expect(formatFrequencyRange([433_920_000, 433_920_000], locale)).toBe(
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"433.92 MHz"
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);
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});
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it("formats a range with both bounds", () => {
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expect(formatFrequencyRange([863_000_000, 870_000_000], locale)).toBe(
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"863 MHz – 870 MHz"
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);
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});
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});
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describe("formatFrequencyRanges", () => {
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it("joins multiple ranges with commas", () => {
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expect(
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formatFrequencyRanges(
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[
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[433_920_000, 433_920_000],
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[868_000_000, 870_000_000],
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],
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locale
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)
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).toBe("433.92 MHz, 868 MHz – 870 MHz");
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});
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it("returns an empty string for no ranges", () => {
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expect(formatFrequencyRanges([], locale)).toBe("");
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});
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});
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