Comment out jcs & correct naming in before statement.

Author: aljones15

tests/80-data-model.js

@@ -8,7 +8,8 @@ import {getSuiteConfig} from './test-config.js';
 
 const cryptosuites = [
   'ecdsa-rdfc-2019',
-  'ecdsa-jcs-2019'
+  'ecdsa-sd-2023'
+  //FIXME implement jcs 'ecdsa-jcs-2019'
 ];
 
 for(const suiteName of cryptosuites) {

tests/suites/data-model.js

@@ -39,10 +39,10 @@ export function dataModelSuite({
             mandatoryPointers
           });
           if(securedCredential) {
-            proofs = Array.isArray(securedCredential.proofs) ?
-              securedCredential?.proofs : [securedCredential?.proofs];
+            proofs = Array.isArray(securedCredential.proof) ?
+              securedCredential?.proof : [securedCredential?.proof];
             // only test proofs that match the relevant cryptosuite
-            proofs.filter(p => p.cryptosuite === suiteName);
+            proofs = proofs.filter(p => p?.cryptosuite === suiteName);
           }
         });
         beforeEach(function() {