Add tests for challenge generation

1 files changed, 13 insertions, 2 deletions

diff --git a/packages/server/src/assertion/generateAssertionOptions.test.ts b/packages/server/src/assertion/generateAssertionOptions.test.ts
index 2567b48..f689445 100644
--- a/packages/server/src/assertion/generateAssertionOptions.test.ts
+++ b/packages/server/src/assertion/generateAssertionOptions.test.ts
@@ -1,4 +1,4 @@
-import base64url from 'base64url';
+jest.mock('../helpers/generateChallenge');
 
 import generateAssertionOptions from './generateAssertionOptions';
 
@@ -12,7 +12,8 @@ test('should generate credential request options suitable for sending via JSON',
   });
 
   expect(options).toEqual({
-    challenge: base64url.encode(challenge),
+    // base64url-encoded
+    challenge: 'dG90YWxseXJhbmRvbXZhbHVl',
     allowCredentials: [
       {
         id: 'MTIzNA==',
@@ -61,6 +62,16 @@ test('should set extensions if specified', () => {
   });
 });
 
+test('should generate a challenge if one is not provided', () => {
+  const opts = { ...goodOpts1 };
+  delete opts.challenge;
+
+  const options = generateAssertionOptions(opts);
+
+  // base64url-encoded 16-byte buffer from mocked `generateChallenge()`
+  expect(options.challenge).toEqual('AQIDBAUGBwgJCgsMDQ4PEA');
+});
+
 const goodOpts1 = {
   challenge: 'totallyrandomvalue',
   allowedCredentialIDs: [