Initial Commit

packages/localization/i18n/react-i18n/tests/setup/polyfills.ts

@@ -0,0 +1,15 @@
+// React-specific polyfill layer. The base webcrypto polyfill is loaded via
+// `@suaveplan/testing/polyfills` (see vitest.config.ts setupFiles). This
+// file adds the React 18+ `IS_REACT_ACT_ENVIRONMENT` global expected by
+// React DOM when assertions are made outside an `act(...)` wrapper, plus
+// any future DOM-only polyfills that should not leak into the universal
+// `@suaveplan/testing/polyfills` entry.
+
+interface ReactActEnvWindow {
+    IS_REACT_ACT_ENVIRONMENT?: boolean;
+}
+
+const win = globalThis as unknown as ReactActEnvWindow;
+if (win.IS_REACT_ACT_ENVIRONMENT === undefined) {
+    win.IS_REACT_ACT_ENVIRONMENT = true;
+}