Write initial passing test

cypress.config.ts

@@ -0,0 +1,8 @@
+import { defineConfig } from "cypress";
+
+export default defineConfig({
+  e2e: {
+    baseUrl: "http://localhost:3000",
+    supportFile: false,
+  },
+});

cypress/e2e/startup.cy.ts

@@ -0,0 +1,22 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+describe("App has no startup errors that prevent UI render", () => {
+  it("passes", () => {
+      cy.visit("/");
+      cy.contains("Log In");
+  })
+})

cypress/tsconfig.json

@@ -0,0 +1,8 @@
+{
+  "compilerOptions": {
+    "target": "es5",
+    "lib": ["es5", "dom"],
+    "types": ["cypress", "node"]
+  },
+  "include": ["**/*.ts"]
+}

package.json

@@ -18,7 +18,8 @@
     "start": "vite --port 3000",
     "build": "vite build && ./scripts/cleanup.sh",
     "build:sdk": "./scripts/sdk/build.sh",
-    "watch:sdk": "./scripts/sdk/build.sh && yarn run vite build -c vite.sdk-lib-config.js --watch"
+    "watch:sdk": "./scripts/sdk/build.sh && yarn run vite build -c vite.sdk-lib-config.js --watch",
+    "test:app": "vite --port 3000 & yarn run cypress open"
   },
   "repository": {
     "type": "git",