Add a playwright test that checks static generation (#2608)

* add a playwright test that checks static generation

* add playwright-static-generation to the workspace

* fix static-generation name in CLI

packages/playwright-tests/static-generation.spec.js

@@ -0,0 +1,21 @@
+// @ts-check
+const { test, expect } = require("@playwright/test");
+
+test("button click", async ({ page }) => {
+  await page.goto("http://localhost:2222");
+  await page.waitForTimeout(1000);
+
+  // Expect the page to contain the counter text.
+  const main = page.locator("#main");
+  await expect(main).toContainText("hello axum! 12345");
+
+  // Expect the page to contain the server data
+  await expect(main).toContainText('Server said: Ok("Hello from the server!")');
+
+  // Click the increment button.
+  let button = page.locator("button.increment-button");
+  await button.click();
+
+  // Expect the page to contain the updated counter text.
+  await expect(main).toContainText("hello axum! 12346");
+});