Install Vitest

Author: bvaughn

lib/components/AutoSizer.tsx

@@ -0,0 +1,18 @@
+import { render, screen } from "@testing-library/react";
+import { describe, test } from "vitest";
+import { SimpleList } from "./SimpleList";
+
+describe("SimpleList", () => {
+  test("should render rows", () => {
+    render(
+      <SimpleList
+        length={3}
+        rowComponent={({ index }) => <div>Row {index}</div>}
+        rowHeight={25}
+        rowProps={{}}
+      />,
+    );
+
+    screen.debug();
+  });
+});

lib/components/list/SimpleList.test.tsx

@@ -0,0 +1,9 @@
+export function mockResizeObserver() {
+  class ResizeObserver {
+    observe() {}
+    unobserve() {}
+    disconnect() {}
+  }
+
+  window.ResizeObserver = ResizeObserver;
+}

lib/utils/test/mockResizeObserver.ts

@@ -11,7 +11,8 @@
     "build:vite": "vite build",
     "lint": "eslint .",
     "preview": "vite preview",
-    "prepare": "husky"
+    "prepare": "husky",
+    "test": "vitest"
   },
   "lint-staged": {
     "**/*": "prettier --write --ignore-unknown"
@@ -31,6 +32,9 @@
     "@lezer/highlight": "latest",
     "@tailwindcss/vite": "^4.1.11",
     "@tailwindplus/elements": "^1.0.5",
+    "@testing-library/jest-dom": "^6.6.4",
+    "@testing-library/react": "^16.3.0",
+    "@testing-library/user-event": "^14.6.1",
     "@types/node": "^24.2.0",
     "@types/react": "^19.1.8",
     "@types/react-dom": "^19.1.6",
@@ -40,6 +44,7 @@
     "eslint-plugin-react-refresh": "^0.4.20",
     "globals": "^16.3.0",
     "husky": "^9.1.7",
+    "jsdom": "^26.1.0",
     "lint-staged": "^16.1.4",
     "prettier": "3.6.2",
     "react": "^19.1.0",
@@ -51,7 +56,8 @@
     "typescript-eslint": "^8.35.1",
     "typescript-json-schema": "^0.65.1",
     "vite": "^7.0.4",
-    "vite-plugin-svgr": "^4.3.0"
+    "vite-plugin-svgr": "^4.3.0",
+    "vitest": "^3.2.4"
   },
   "dependencies": {
     "memoize-one": "^6.0.0"