Initial Commit

packages/foundation/bitpacker/bitpacker-crypto/tests/setup/polyfills.ts

@@ -0,0 +1,24 @@
+/**
+ * Vitest setup polyfills for @suaveplan/bitpacker-crypto.
+ *
+ * The package's primitives consume `globalThis.crypto.getRandomValues` for
+ * AEAD nonces and `globalThis.crypto.subtle` for sha256 digests. Modern Node
+ * (≥ 19) exposes these on `globalThis.crypto`, but the vitest forks pool can
+ * sometimes start in a context where the global is not yet attached. Pull it
+ * explicitly from `node:crypto.webcrypto` if missing.
+ */
+import { webcrypto } from "node:crypto";
+
+if (typeof globalThis.crypto?.getRandomValues !== "function") {
+    Object.defineProperty(globalThis, "crypto", {
+        value: webcrypto,
+        configurable: true,
+        writable: true,
+    });
+}
+
+if (typeof globalThis.crypto?.getRandomValues !== "function") {
+    throw new Error(
+        "[bitpacker-crypto polyfills] failed to install globalThis.crypto.getRandomValues"
+    );
+}