Add assertBefore & endpoint check.

Author: aljones15

tests/suites/data-model.js

@@ -2,18 +2,19 @@
  * Copyright 2024 Digital Bazaar, Inc.
  * SPDX-License-Identifier: BSD-3-Clause
  */
+import {createInitialVc, endpointCheck} from '../helpers.js';
 import {
   assertions,
 } from 'data-integrity-test-suite-assertion';
+import {expect} from 'chai';
 
 export function dataModelSuite({
   issuers,
   suiteName,
   keyType,
   vcVersion,
   credential,
-  mandatoryPointers,
-  selectivePointers,
+  mandatoryPointers
 }) {
   describe(`${suiteName} - Data Model - VC ${vcVersion}`, function() {
     this.matrix = true;
@@ -23,42 +24,61 @@ export function dataModelSuite({
     this.columnLabel = 'Implementation';
     for(const [name, {endpoints}] of issuers) {
       const [issuer] = endpoints;
+      // does the endpoint support this test?
+      if(!endpointCheck({endpoint: issuer, keyType, vcVersion})) {
+        continue;
+      }
       describe(`${name}: ${keyType}`, function() {
         let securedCredential = null;
-        let issuerError = null;
-        before(async function(){
-
+        before(async function() {
+          securedCredential = await createInitialVc({
+            issuer,
+            vcVersion,
+            vc: credential,
+            mandatoryPointers
+          });
         });
         beforeEach(function() {
           this.currentTest.cell = {
             rowId: this.currentTest.title,
             columnId: this.currentTest.parent.title
           };
         });
+        function assertBefore() {
+          expect(
+            securedCredential,
+            `Expected issuer ${name}: ${keyType} to issue a VC`
+          ).to.exist;
+        }
         it('The publicKeyMultibase value of the verification method MUST ' +
           'start with the base-58-btc prefix (z), as defined in the ' +
           'Multibase section of Controller Documents 1.0. A ' +
           'Multibase-encoded Ed25519 256-bit public key value follows, as ' +
           'defined in the Multikey section of Controller Documents 1.0.',
         async function() {
           this.test.link = 'https://w3c.github.io/vc-di-eddsa/#data-model:~:text=in%20this%20specification.-,The%20publicKeyMultibase%20value%20of%20the%20verification%20method%20MUST%20start%20with%20the%20base%2D58%2Dbtc%20prefix,-(z)%2C%20as';
+          assertBefore();
         });
         it('Any other encoding MUST NOT be allowed. (verificationMethod)',
           async function() {
             this.test.link = 'https://w3c.github.io/vc-di-eddsa/#data-model:~:text=of%20Controller%20Documents%201.0.-,Any%20other%20encoding%20MUST%20NOT%20be%20allowed.,-Developers%20are%20advised%20to%20not';
+            assertBefore();
           });
         it('The type property MUST be DataIntegrityProof.', async function() {
           this.test.link = 'https://w3c.github.io/vc-di-eddsa/#data-model:~:text=The%20type%20property%20MUST%20be%20DataIntegrityProof.';
+          assertBefore();
         });
         it('The cryptosuite property of the proof MUST be eddsa-rdfc-2022 or ' +
           'eddsa-jcs-2022.', async function() {
           this.test.link = 'https://w3c.github.io/vc-di-eddsa/#data-model:~:text=The%20cryptosuite%20property%20of%20the%20proof%20MUST%20be%20eddsa%2Drdfc%2D2022%20or%20eddsa%2Djcs%2D2022.';
+          assertBefore();
         });
         it('The proofValue property of the proof MUST be a detached EdDSA ' +
           'signature produced according to [RFC8032], encoded using the ' +
           'base-58-btc header and alphabet as described in the Multibase ' +
           'section of Controller Documents 1.0.', async function() {
           this.test.link = 'https://w3c.github.io/vc-di-eddsa/#data-model:~:text=The%20proofValue%20property%20of%20the%20proof%20MUST%20be%20a%20detached%20EdDSA%20signature%20produced%20according%20to%20%5BRFC8032%5D%2C%20encoded%20using%20the%20base%2D58%2Dbtc%20header%20and%20alphabet%20as%20described%20in%20the%20Multibase%20section%20of%20Controller%20Documents%201.0.';
+          assertBefore();
 
         });
       });