diff --git a/assertions.js b/assertions.js
index 074bed1..810d307 100644
--- a/assertions.js
+++ b/assertions.js
@@ -5,6 +5,7 @@ import chai from 'chai';
 import jsonld from 'jsonld';
 
 const should = chai.should();
+const {expect} = chai;
 // RegExp with bs58 characters in it
 const bs58 =
   /^[123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz]+$/;
@@ -298,3 +299,35 @@ export function shouldHaveProofValue({proof, expectedPrefix, encodingName}) {
     true,
     `Expected "proof.proofValue" to be a valid ${encodingName} value`);
 }
+
+export async function shouldBeProofValue({credentials, verifier}) {
+  expect(credentials, 'Expected test data to be generated.').to.exist;
+  expect(credentials.clone('issuedVc'), 'Expected a valid Vc to be issued.').
+    to.exist;
+  // proofValue is added after signing so we can
+  // safely delete it for this test
+  const noProofValue = credentials.clone('issuedVc');
+  delete noProofValue.proof.proofValue;
+  await verificationFail({
+    credential: noProofValue,
+    verifier,
+    reason: 'MUST not verify VC with no "proofValue".'
+  });
+  // null should be an invalid proofValue for almost any proof
+  const nullProofValue = credentials.clone('issuedVc');
+  nullProofValue.proof.proofValue = null;
+  await verificationFail({
+    credential: nullProofValue,
+    verifier,
+    reason: 'MUST not verify VC with "proofValue" null.'
+  });
+  const noProofValueHeader = credentials.clone('issuedVc');
+  // Remove the multibase header to cause validation error
+  noProofValueHeader.proof.proofValue = noProofValueHeader.proof.proofValue.
+    slice(1);
+  await verificationFail({
+    credential: noProofValueHeader,
+    verifier,
+    reason: 'MUST not verify VC with invalid multibase header on "proofValue"'
+  });
+}
diff --git a/suites/verify.js b/suites/verify.js
index b517702..95746ea 100644
--- a/suites/verify.js
+++ b/suites/verify.js
@@ -1,8 +1,11 @@
 /*!
  * Copyright (c) 2024 Digital Bazaar, Inc.
  */
-import {verificationFail, verificationSuccess} from '../assertions.js';
-import {expect} from 'chai';
+import {
+  shouldBeProofValue,
+  verificationFail,
+  verificationSuccess
+} from '../assertions.js';
 
 export function runDataIntegrityProofVerifyTests({
   endpoints,
@@ -101,22 +104,32 @@ export function runDataIntegrityProofVerifyTests({
         reason: 'MUST not verify VC w/o "proof.proofPurpose"'
       });
     });
-    it(`If the "proof.type" field is not the string ` +
-      `"${expectedProofType}", an error MUST be raised.`,
-    async function() {
-      const credential = credentials.clone('invalidProofType');
-      await verificationFail({credential, verifier});
-    });
-    it('If the "proof.verificationMethod" field is invalid, an error ' +
-      'MUST be raised.', async function() {
-      const credential = credentials.clone('invalidVm');
-      await verificationFail({credential, verifier});
-    });
-    it('If the "proof.proofPurpose" field is invalid, an error MUST ' +
-      'be raised.', async function() {
-      const credential = credentials.clone('invalidProofPurpose');
-      await verificationFail({credential, verifier});
-    });
+    // use updated statement for DataIntegrityProof tests
+    if(expectedProofType === 'DataIntegrityProof') {
+      it('The type property MUST contain the string DataIntegrityProof.',
+        async function() {
+          this.test.link = 'https://w3c.github.io/vc-data-integrity/#proofs:~:text=The%20type%20property%20MUST%20contain%20the%20string%20DataIntegrityProof.';
+          const credential = credentials.clone('invalidProofType');
+          await verificationFail({
+            credential,
+            verifier,
+            reason: 'Should not verify VC with invalid "proof.type"'
+          });
+        });
+    } else {
+      // if the expectedProofType if Ed25519Sig etc. use the
+      // deprecated statement
+      it(`If the "proof.type" field is not the string ` +
+        `"${expectedProofType}", an error MUST be raised.`,
+      async function() {
+        const credential = credentials.clone('invalidProofType');
+        await verificationFail({
+          credential,
+          verifier,
+          reason: 'Should not verify VC with invalid "proof.type"'
+        });
+      });
+    }
     it('If expectedProofPurpose was given, and it does not match ' +
         'proof.proofPurpose, an error MUST be raised and SHOULD convey an ' +
         'error type of PROOF_VERIFICATION_ERROR.', async function() {
@@ -311,35 +324,3 @@ export function runDataIntegrityProofVerifyTests({
     }
   });
 }
-
-async function shouldBeProofValue({credentials, verifier}) {
-  expect(credentials, 'Expected test data to be generated.').to.exist;
-  expect(credentials.clone('issuedVc'), 'Expected a valid Vc to be issued.').
-    to.exist;
-  // proofValue is added after signing so we can
-  // safely delete it for this test
-  const noProofValue = credentials.clone('issuedVc');
-  delete noProofValue.proof.proofValue;
-  await verificationFail({
-    credential: noProofValue,
-    verifier,
-    reason: 'MUST not verify VC with no "proofValue".'
-  });
-  // null should be an invalid proofValue for almost any proof
-  const nullProofValue = credentials.clone('issuedVc');
-  nullProofValue.proof.proofValue = null;
-  await verificationFail({
-    credential: nullProofValue,
-    verifier,
-    reason: 'MUST not verify VC with "proofValue" null.'
-  });
-  const noProofValueHeader = credentials.clone('issuedVc');
-  // Remove the multibase header to cause validation error
-  noProofValueHeader.proof.proofValue = noProofValueHeader.proof.proofValue.
-    slice(1);
-  await verificationFail({
-    credential: noProofValueHeader,
-    verifier,
-    reason: 'MUST not verify VC with invalid multibase header on "proofValue"'
-  });
-}
diff --git a/vc-generator/generators.js b/vc-generator/generators.js
index f090025..48a1ae5 100644
--- a/vc-generator/generators.js
+++ b/vc-generator/generators.js
@@ -308,6 +308,7 @@ function invalidVm({
   suite,
   selectiveSuite,
   credential,
+  //FIXME this generator should support non-string verificationMethods
   mockVM = 'did:key:invalidVm',
   ...args
 }) {