From 9d926fd91c43606ba4f808bc4e4bf4d1be9497f2 Mon Sep 17 00:00:00 2001
From: Andrew Jones <ajones@digitalbazaar.com>
Date: Sun, 30 Jun 2024 19:17:40 +0000
Subject: [PATCH] Add assertion for mandatoryPointers and test for
 mandatoryPointers.

---
 tests/assertions.js    | 9 +++++++++
 tests/suites/create.js | 8 ++++++++
 2 files changed, 17 insertions(+)

diff --git a/tests/assertions.js b/tests/assertions.js
index d82eee1..9dd2e48 100644
--- a/tests/assertions.js
+++ b/tests/assertions.js
@@ -100,6 +100,15 @@ export const shouldNotUseCborTags = ({proof}) => {
   should.exist(result, 'Expected proof to be decoded.');
 };
 
+export const shouldHaveMandatoryPointers = ({proof}) => {
+  const {mandatoryPointers} = parseBaseProofValue({proof});
+  should.exist(mandatoryPointers, 'Expected "mandatoryPointers" to exist.');
+  mandatoryPointers.should.be.an(
+    'Array', 'Expected "mandatoryPointers" to be an Array.');
+  mandatoryPointers.length.should.be.gt(
+    0, 'Expected at least one "mandatoyPointer".');
+};
+
 export const shouldBeMultibaseEncoded = async ({
   expectedLength,
   prefixes = {
diff --git a/tests/suites/create.js b/tests/suites/create.js
index 33f5184..4ccf520 100644
--- a/tests/suites/create.js
+++ b/tests/suites/create.js
@@ -8,6 +8,7 @@ import {
   checkHmacKeyLength,
   shouldBeMultibaseEncoded,
   shouldBeProofValue,
+  shouldHaveMandatoryPointers,
   shouldNotUseCborTags,
   shouldVerifyDerivedProof
 } from '../assertions.js';
@@ -221,6 +222,13 @@ export function createSuite({
             shouldNotUseCborTags({proof});
           }
         });
+        it('The transformation options MUST contain an array of mandatory ' +
+        'JSON pointers (mandatoryPointers)', function() {
+          this.test.link = 'https://w3c.github.io/vc-di-bbs/#:~:text=The%20transformation%20options%20MUST%20contain%20an%20array%20of%20mandatory%20JSON%20pointers%20(mandatoryPointers)';
+          for(const proof of bbsProofs) {
+            shouldHaveMandatoryPointers({proof});
+          }
+        });
       });
     }
   });