Initial

tests/e2e/ensemble.spec.ts

@@ -0,0 +1,38 @@
+import { test, expect, type Page } from '@playwright/test';
+
+async function login(page: Page) {
+	await page.goto('/login/');
+	await page.fill('#lg-username', 'demo');
+	await page.fill('#lg-password', 'demo');
+	await page.click('button[type=submit]');
+	await expect(page.getByTestId('nav-menu')).toBeVisible();
+}
+
+test('an ensemble run draws a probabilistic landing footprint', async ({ page }) => {
+	await login(page);
+
+	// The run is asynchronous: it returns a job, then the UI polls until it settles.
+	await page.getByTestId('run-ensemble-btn').click();
+	await expect(page.getByTestId('ensemble-summary')).toBeVisible({ timeout: 20000 });
+	await expect(page.getByTestId('ensemble-summary')).toContainText('21');
+
+	// The footprint is its own scene: member scatter + mean + 95% ellipse.
+	const ensembleLayers = () =>
+		page.evaluate(() => {
+			const map = (window as unknown as { _sfMap?: { getStyle(): { layers: { id: string }[] } } })
+				._sfMap;
+			if (!map) return [] as string[];
+			return map
+				.getStyle()
+				.layers.map((l) => l.id)
+				.filter((id) => id.startsWith('ens/'))
+				.map((id) => id.split('__')[1]);
+		});
+
+	await expect.poll(ensembleLayers).toContain('ellipse');
+	await expect.poll(ensembleLayers).toContain('mean');
+	// One dot per member.
+	await expect
+		.poll(async () => (await ensembleLayers()).filter((id) => id.startsWith('m-')).length)
+		.toBe(21);
+});