精简后的项目：仅保留 api/ui 源码、文档、构建依赖

ui/testing/setupTests.ts

@@ -0,0 +1,11 @@
+// jest-dom adds custom jest matchers for asserting on DOM nodes.
+// allows you to do things like:
+// expect(element).toHaveTextContent(/react/i)
+// learn more: https://github.com/testing-library/jest-dom
+import '@testing-library/jest-dom'
+import '@testing-library/user-event'
+
+import { setupLocalization } from '../src/localization'
+
+// setup localization to make it easier to select elements by text
+setupLocalization()

ui/testing/transform-svg.js

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+/**
+ * Mock .svg imports
+ */
+
+const path = require('path')
+
+module.exports = {
+  process(_, filename) {
+    return 'module.exports = "' + path.basename(filename) + '.svg"'
+  },
+  getCacheKey(_, filename) {
+    // The output is based on path.
+    return path.basename(filename)
+  },
+}