test: wasm proof verifying with native bb

yarn-project/ivc-integration/package.json

@@ -51,9 +51,7 @@
         }
       ]
     },
-    "reporters": [
-      "default"
-    ],
+
     "testTimeout": 120000,
     "setupFiles": [
       "../../foundation/src/jest/setup.mjs"

yarn-project/ivc-integration/src/prove_wasm.ts

@@ -1,9 +1,29 @@
+import { ClientIvcProof } from '@aztec/stdlib/proofs';
+
 import { ungzip } from 'pako';
 
 function base64ToUint8Array(base64: string): Uint8Array {
   return Uint8Array.from(atob(base64), c => c.charCodeAt(0));
 }
 
+export async function proveClientIVC(
+  bytecodes: string[],
+  witnessStack: Uint8Array[],
+  threads?: number,
+): Promise<ClientIvcProof> {
+  const { AztecClientBackend } = await import('@aztec/bb.js');
+  const backend = new AztecClientBackend(
+    bytecodes.map(base64ToUint8Array).map((arr: Uint8Array) => ungzip(arr)),
+    { threads },
+  );
+  try {
+    const [proof] = await backend.prove(witnessStack.map((arr: Uint8Array) => ungzip(arr)));
+    return new ClientIvcProof(Buffer.from(proof));
+  } finally {
+    await backend.destroy();
+  }
+}
+
 export async function proveThenVerifyAztecClient(
   bytecodes: string[],
   witnessStack: Uint8Array[],

yarn-project/ivc-integration/src/rollup_ivc_integration.test.ts

@@ -31,6 +31,7 @@ import {
   witnessGenMockRollupRootCircuit,
 } from './index.js';
 import { proveAvm, proveClientIVC, proveRollupHonk, proveTube } from './prove_native.js';
+import { proveClientIVC as proveClientIVCWASM } from './prove_wasm.js';
 import type { KernelPublicInputs } from './types/index.js';
 
 /* eslint-disable camelcase */
@@ -58,7 +59,7 @@ describe('Rollup IVC Integration', () => {
 
     const [bytecodes, witnessStack, tailPublicInputs] = await generate3FunctionTestingIVCStack();
     clientIVCPublicInputs = tailPublicInputs;
-    const proof = await proveClientIVC(bbBinaryPath, clientIVCWorkingDirectory, witnessStack, bytecodes, logger);
+    const proof = await proveClientIVCWASM(bytecodes, witnessStack, 16);
     await writeClientIVCProofToOutputDirectory(proof, clientIVCWorkingDirectory);
     const verifyResult = await verifyClientIvcProof(
       bbBinaryPath,