add tests

src/internals/getNonce.crypto.test.ts

@@ -0,0 +1,16 @@
+// eslint-disable-next-line eslint-comments/disable-enable-pair
+/* eslint-disable @typescript-eslint/no-explicit-any */
+import { expect, test } from "vitest";
+
+test("with crypto", async () => {
+	const before = global.crypto;
+
+	global.crypto = {
+		randomUUID: () => "test",
+	} as any;
+	const { getNonce } = await import("./getNonce.js");
+
+	expect(getNonce()).toBe("test");
+
+	global.crypto = before;
+});

src/internals/getNonce.nocrypto.test.ts

@@ -0,0 +1,15 @@
+// eslint-disable-next-line eslint-comments/disable-enable-pair
+/* eslint-disable @typescript-eslint/no-explicit-any */
+import { expect, test } from "vitest";
+
+test("without crypto", async () => {
+	const before = global.crypto;
+
+	global.crypto = undefined as any;
+
+	const { getNonce } = await import("./getNonce.js");
+
+	expect(getNonce().length).toBeGreaterThan(20);
+
+	global.crypto = before;
+});

src/internals/getNonce.ts

@@ -4,7 +4,6 @@ const randomString = () => Math.random().toString(36).slice(2);
 
 export type GetNonce = () => TsonNonce;
 
-// istanbul ignore next
 export const getNonce: GetNonce =
 	typeof crypto === "object" && typeof crypto.randomUUID === "function"
 		? () => crypto.randomUUID() as TsonNonce