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HomePilot / frontend /src /test /browserMicHelp.test.ts
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/**
* The microphone setting that lives in the browser, not the operating system.
*
* Every message HomePilot produced about a deaf recognizer pointed at the OS default input.
* True, and not the whole truth — and the missing half is the half most reports are about.
*
* Chrome keeps its **own** microphone selection at `chrome://settings/content/microphone`. It
* starts out following the OS default and can be pinned to a device independently; once
* pinned, that is what every `getUserMedia()` and every `SpeechRecognition` session on the
* page records, whatever the OS thinks. A user sent only to their sound panel therefore fixes
* it correctly and observes no change at all.
*
* The page also cannot take them there: `chrome://` is an internal scheme, and a website may
* not link to or navigate to one. So the address has to be handed over as text to copy, which
* is why it lives in a sentence rather than in an `href`.
*/
import { describe, expect, it } from 'vitest';
import {
BROWSER_MIC_SETTINGS_URL,
EDGE_MIC_SETTINGS_URL,
browserMicSettings,
describeBrowserMicCheck,
} from '../ui/media/browserMicHelp';
const CHROME = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36';
const EDGE = `${CHROME} Edg/141.0.0.0`;
const FIREFOX = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:130.0) Gecko/20100101 Firefox/130.0';
const SAFARI = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15';
const OPERA = `${CHROME} OPR/115.0.0.0`;
describe('which browser has a microphone settings page', () => {
it('names Chrome’s', () => {
expect(browserMicSettings(CHROME)).toEqual({ name: 'Chrome', url: BROWSER_MIC_SETTINGS_URL });
expect(BROWSER_MIC_SETTINGS_URL).toBe('chrome://settings/content/microphone');
});
it('checks Edge first, because its user agent also says Chrome', () => {
// Testing for Chrome first sends every Edge user to a `chrome://` address that does not
// resolve in their browser — advice that looks precise and cannot be followed.
expect(browserMicSettings(EDGE)).toEqual({ name: 'Edge', url: EDGE_MIC_SETTINGS_URL });
});
it('says nothing for browsers with no such address', () => {
// Firefox and Safari have microphone preferences, but not at an address that can be
// written down like this. Inventing one is worse than staying quiet.
expect(browserMicSettings(FIREFOX)).toBeNull();
expect(browserMicSettings(SAFARI)).toBeNull();
// Chromium skins that rebadge the settings UI are excluded for the same reason.
expect(browserMicSettings(OPERA)).toBeNull();
expect(browserMicSettings('')).toBeNull();
});
});
describe('the sentence it produces', () => {
it('names the address and says the page cannot open it', () => {
const line = describeBrowserMicCheck({ name: 'Chrome', url: BROWSER_MIC_SETTINGS_URL });
expect(line).toContain('chrome://settings/content/microphone');
// Without this the user clicks the text, nothing happens, and the advice reads as broken.
expect(line).toContain('Type or paste');
expect(line).toContain('not allowed to open it for you');
});
it('says the setting is the browser’s own, not the operating system’s', () => {
// The entire point. "Check your microphone settings" is what they have already done.
const line = describeBrowserMicCheck({ name: 'Chrome', url: BROWSER_MIC_SETTINGS_URL });
expect(line).toContain('separate from your operating system');
});
it('is empty where there is no page to name', () => {
// Callers append this to a finished sentence, so the absent case has to leave the text
// exactly as it was rather than trailing a clause that names nothing.
expect(describeBrowserMicCheck(null)).toBe('');
});
});