Improve Playwright/E2E testing setup (#5056)

Co-authored-by: Frank Elsinga <frank@elsinga.de>

test/e2e/util-test.js

@@ -1,3 +1,9 @@
+const fs = require("fs");
+const path = require("path");
+const serverUrl = require("../../config/playwright.config.js").url;
+
+const dbPath = "./../../data/playwright-test/kuma.db";
+
 /**
  * @param {TestInfo} testInfo Test info
  * @param {Page} page Page
@@ -25,3 +31,32 @@ export async function login(page) {
     await page.getByRole("button", { name: "Log in" }).click();
     await page.isVisible("text=Add New Monitor");
 }
+
+/**
+ * Determines if the SQLite database has been created. This indicates setup has completed.
+ * @returns {boolean} True if exists
+ */
+export function getSqliteDatabaseExists() {
+    return fs.existsSync(path.resolve(__dirname, dbPath));
+}
+
+/**
+ * Makes a request to the server to take a snapshot of the SQLite database.
+ * @param {Page|null} page Page
+ * @returns {Promise<Response>} Promise of response from snapshot request.
+ */
+export async function takeSqliteSnapshot(page = null) {
+    if (page) {
+        return page.goto("./_e2e/take-sqlite-snapshot");
+    } else {
+        return fetch(`${serverUrl}/_e2e/take-sqlite-snapshot`);
+    }
+}
+
+/**
+ * Makes a request to the server to restore the snapshot of the SQLite database.
+ * @returns {Promise<Response>} Promise of response from restoration request.
+ */
+export async function restoreSqliteSnapshot() {
+    return fetch(`${serverUrl}/_e2e/restore-sqlite-snapshot`);
+}