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Add professional S-Meter UI component with accessibility and E2E tests (#291)
* Initial plan * Add SMeter component with tests and E2E validation Co-authored-by: alexthemitchell <[email protected]> * Integrate SMeter component into Monitor page Co-authored-by: alexthemitchell <[email protected]> * Add comprehensive SMeter documentation Co-authored-by: alexthemitchell <[email protected]> * Fix lint and format issues in SMeter component Co-authored-by: alexthemitchell <[email protected]> * Address PR review comments: fix JSDoc, remove duplicate aria-live, update comments Co-authored-by: alexthemitchell <[email protected]> --------- Co-authored-by: copilot-swe-agent[bot] <[email protected]> Co-authored-by: alexthemitchell <[email protected]> Co-authored-by: Alex Mitchell <[email protected]>
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‎e2e/s-meter.spec.ts‎

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/**
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* S-Meter E2E Tests
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* Tests S-Meter component with simulated signal injection
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* @simulated
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*/
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import { test, expect } from "@playwright/test";
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test.describe("S-Meter Component @simulated", () => {
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test.beforeEach(async ({ page }) => {
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await page.goto("/");
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});
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test("should render S-Meter component", async ({ page }) => {
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// Navigate to a page with signal monitoring (e.g., Monitor page)
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const monitorLink = page.getByRole("link", { name: /monitor/i });
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await monitorLink.click();
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// Look for S-Meter region
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const sMeter = page
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.locator('[aria-label*="S-Meter"]')
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.or(page.locator(".s-meter"));
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// S-Meter might not be visible initially if no signal
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// This is expected behavior
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const sMeterCount = await sMeter.count();
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expect(sMeterCount).toBeGreaterThanOrEqual(0);
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});
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test("should update S-Meter with synthetic signal", async ({ page }) => {
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// Navigate to monitor page
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await page.goto("/#/monitor");
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// Wait for page to load
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await page.waitForLoadState("networkidle");
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// Inject a mock signal level into the store
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await page.evaluate(() => {
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// Access the global store if available
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const store = (window as any).__RADIO_STORE__;
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if (store && store.setSignalLevel) {
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store.setSignalLevel({
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dBfs: -30,
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dBmApprox: -100,
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sUnit: 7,
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overS9: 0,
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band: "VHF",
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calibrationStatus: "uncalibrated",
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uncertaintyDb: 10,
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timestamp: Date.now(),
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});
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}
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});
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// Wait a bit for the component to render
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await page.waitForTimeout(500);
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// Look for S7 in the meter (might be in multiple places - value and scale)
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const s7Text = page.getByText("S7").first();
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if ((await s7Text.count()) > 0) {
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await expect(s7Text).toBeVisible();
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}
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});
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test("should show color zones for different signal strengths", async ({
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page,
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}) => {
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await page.goto("/#/monitor");
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await page.waitForLoadState("networkidle");
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// Test weak signal (S3) - should have weak color
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await page.evaluate(() => {
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const store = (window as any).__RADIO_STORE__;
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if (store && store.setSignalLevel) {
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store.setSignalLevel({
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dBfs: -60,
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dBmApprox: -120,
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sUnit: 3,
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overS9: 0,
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band: "VHF",
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calibrationStatus: "uncalibrated",
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uncertaintyDb: 10,
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timestamp: Date.now(),
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});
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}
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});
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await page.waitForTimeout(300);
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// Check for weak signal color class if meter is present
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const weakBar = page.locator(".s-meter-bar-weak");
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if ((await weakBar.count()) > 0) {
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expect(await weakBar.count()).toBeGreaterThan(0);
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}
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// Test strong signal (S9+20) - should have moderate/strong color
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await page.evaluate(() => {
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const store = (window as any).__RADIO_STORE__;
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if (store && store.setSignalLevel) {
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store.setSignalLevel({
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dBfs: -20,
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dBmApprox: -73,
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sUnit: 9,
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overS9: 20,
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band: "VHF",
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calibrationStatus: "uncalibrated",
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uncertaintyDb: 10,
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timestamp: Date.now(),
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});
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}
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});
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await page.waitForTimeout(300);
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// Check for strong signal color class if meter is present
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const strongBar = page
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.locator(".s-meter-bar-strong")
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.or(page.locator(".s-meter-bar-moderate"));
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if ((await strongBar.count()) > 0) {
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expect(await strongBar.count()).toBeGreaterThan(0);
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}
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});
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test("should display S9+ format for strong signals", async ({ page }) => {
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await page.goto("/#/monitor");
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await page.waitForLoadState("networkidle");
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// Inject S9+40 signal
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await page.evaluate(() => {
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const store = (window as any).__RADIO_STORE__;
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if (store && store.setSignalLevel) {
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store.setSignalLevel({
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dBfs: -10,
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dBmApprox: -53,
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sUnit: 9,
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overS9: 40,
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band: "VHF",
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calibrationStatus: "user",
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uncertaintyDb: 1.5,
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timestamp: Date.now(),
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});
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}
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});
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await page.waitForTimeout(500);
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// Look for S9+40 text
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const s9Plus40 = page.getByText("S9+40");
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if ((await s9Plus40.count()) > 0) {
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await expect(s9Plus40).toBeVisible();
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}
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});
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test("should show dBm value when enabled", async ({ page }) => {
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await page.goto("/#/monitor");
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await page.waitForLoadState("networkidle");
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// Inject signal with specific dBm value
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await page.evaluate(() => {
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const store = (window as any).__RADIO_STORE__;
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if (store && store.setSignalLevel) {
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store.setSignalLevel({
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dBfs: -35,
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dBmApprox: -105,
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sUnit: 5,
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overS9: 0,
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band: "VHF",
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calibrationStatus: "uncalibrated",
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uncertaintyDb: 10,
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timestamp: Date.now(),
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});
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}
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});
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await page.waitForTimeout(500);
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// Look for dBm value (if showDbm is enabled)
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const dbmText = page.getByText(/-\d+ dBm/);
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if ((await dbmText.count()) > 0) {
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await expect(dbmText).toBeVisible();
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}
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});
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test("should show band indicator (HF/VHF)", async ({ page }) => {
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await page.goto("/#/monitor");
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await page.waitForLoadState("networkidle");
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// Test VHF band
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await page.evaluate(() => {
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const store = (window as any).__RADIO_STORE__;
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if (store && store.setSignalLevel) {
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store.setSignalLevel({
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dBfs: -30,
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dBmApprox: -100,
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sUnit: 6,
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overS9: 0,
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band: "VHF",
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calibrationStatus: "uncalibrated",
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uncertaintyDb: 10,
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timestamp: Date.now(),
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});
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}
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});
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await page.waitForTimeout(300);
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// Look for VHF indicator
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const vhfBand = page.locator(".s-meter-band").getByText("VHF");
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if ((await vhfBand.count()) > 0) {
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await expect(vhfBand).toBeVisible();
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}
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// Test HF band
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await page.evaluate(() => {
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const store = (window as any).__RADIO_STORE__;
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if (store && store.setSignalLevel) {
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store.setSignalLevel({
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dBfs: -30,
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dBmApprox: -100,
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sUnit: 6,
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overS9: 0,
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band: "HF",
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calibrationStatus: "uncalibrated",
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uncertaintyDb: 10,
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timestamp: Date.now(),
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});
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}
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});
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await page.waitForTimeout(300);
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// Look for HF indicator
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const hfBand = page.locator(".s-meter-band").getByText("HF");
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if ((await hfBand.count()) > 0) {
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await expect(hfBand).toBeVisible();
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}
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});
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test("should have proper accessibility attributes", async ({ page }) => {
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await page.goto("/#/monitor");
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await page.waitForLoadState("networkidle");
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// Inject signal
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await page.evaluate(() => {
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const store = (window as any).__RADIO_STORE__;
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if (store && store.setSignalLevel) {
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store.setSignalLevel({
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dBfs: -30,
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dBmApprox: -100,
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sUnit: 7,
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overS9: 0,
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band: "VHF",
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calibrationStatus: "uncalibrated",
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uncertaintyDb: 10,
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timestamp: Date.now(),
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});
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}
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});
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await page.waitForTimeout(500);
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// Check for meter role with ARIA attributes
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const meterBar = page.locator('[role="meter"]');
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if ((await meterBar.count()) > 0) {
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await expect(meterBar.first()).toHaveAttribute("aria-valuenow");
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await expect(meterBar.first()).toHaveAttribute("aria-valuemin", "0");
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await expect(meterBar.first()).toHaveAttribute("aria-valuemax", "100");
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await expect(meterBar.first()).toHaveAttribute("aria-label");
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}
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// Check for ARIA live region
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const liveRegion = page.locator('[aria-live="polite"]');
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if ((await liveRegion.count()) > 0) {
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expect(await liveRegion.count()).toBeGreaterThan(0);
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}
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});
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test("should smoothly update on rapid signal changes", async ({ page }) => {
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await page.goto("/#/monitor");
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await page.waitForLoadState("networkidle");
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// Rapidly inject different signal levels
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for (let i = 1; i <= 9; i++) {
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await page.evaluate((sUnit) => {
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const store = (window as any).__RADIO_STORE__;
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if (store && store.setSignalLevel) {
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store.setSignalLevel({
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dBfs: -30 - (9 - sUnit) * 5,
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dBmApprox: -100 - (9 - sUnit) * 6,
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sUnit,
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overS9: 0,
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band: "VHF",
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calibrationStatus: "uncalibrated",
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uncertaintyDb: 10,
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timestamp: Date.now(),
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});
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}
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}, i);
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await page.waitForTimeout(100);
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}
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// Component should still be present and not have crashed
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const sMeter = page.locator(".s-meter");
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if ((await sMeter.count()) > 0) {
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await expect(sMeter.first()).toBeVisible();
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}
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});
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test("should display calibration indicator for calibrated signals", async ({
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page,
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}) => {
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await page.goto("/#/monitor");
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await page.waitForLoadState("networkidle");
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// Inject user-calibrated signal
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await page.evaluate(() => {
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const store = (window as any).__RADIO_STORE__;
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if (store && store.setSignalLevel) {
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store.setSignalLevel({
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dBfs: -30,
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dBmApprox: -100,
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sUnit: 7,
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overS9: 0,
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band: "VHF",
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calibrationStatus: "user",
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uncertaintyDb: 1.5,
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timestamp: Date.now(),
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});
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}
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});
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await page.waitForTimeout(500);
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// Look for calibration indicator (ruler emoji for user calibration)
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const calibrationIcon = page.locator(".s-meter-calibration");
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if ((await calibrationIcon.count()) > 0) {
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await expect(calibrationIcon.first()).toBeVisible();
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}
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});
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test("should handle segment style meter", async ({ page }) => {
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// This test assumes we can configure the meter style
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// For now, just verify the CSS classes exist
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await page.goto("/#/monitor");
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await page.waitForLoadState("networkidle");
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// Inject signal
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await page.evaluate(() => {
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const store = (window as any).__RADIO_STORE__;
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if (store && store.setSignalLevel) {
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store.setSignalLevel({
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dBfs: -30,
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dBmApprox: -100,
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sUnit: 7,
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overS9: 0,
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band: "VHF",
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calibrationStatus: "uncalibrated",
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uncertaintyDb: 10,
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timestamp: Date.now(),
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});
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}
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});
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await page.waitForTimeout(500);
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// Check that either bar or segments style is present
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const barContainer = page.locator(".s-meter-bar-container");
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const segmentsContainer = page.locator(".s-meter-segments");
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const hasBar = (await barContainer.count()) > 0;
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const hasSegments = (await segmentsContainer.count()) > 0;
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// At least one display style should be present
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expect(hasBar || hasSegments).toBeTruthy();
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});
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});

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