test

yarn-project/circuit-types/src/interfaces/public_data_witness.test.ts

@@ -0,0 +1,31 @@
+import { PUBLIC_DATA_TREE_HEIGHT, PublicDataTreeLeafPreimage } from '@aztec/circuits.js';
+import { fr } from '@aztec/circuits.js/testing';
+import { toBufferBE } from '@aztec/foundation/bigint-buffer';
+import { randomInt } from '@aztec/foundation/crypto';
+
+import { SiblingPath } from '../sibling_path/sibling_path.js';
+import { PublicDataWitness } from './public_data_witness.js';
+
+describe('contract_artifact', () => {
+  it('serializes and deserializes an instance', () => {
+    const witness = makePublicDataWitness(randomInt(1000000));
+
+    const deserialized = PublicDataWitness.fromBuffer(witness.toBuffer());
+    expect(deserialized).toEqual(witness);
+  });
+});
+
+/**
+ * Factory function to create a PublicDataWitness based on given seed.
+ * @param seed - A seed used to derive all parameters.
+ * @returns A new instance of PublicDataWitness.
+ */
+function makePublicDataWitness(seed: number): PublicDataWitness {
+  const leafPreimage = new PublicDataTreeLeafPreimage(fr(seed + 1), fr(seed + 2), fr(seed + 3), BigInt(seed + 4));
+  const siblingPath = new SiblingPath(
+    PUBLIC_DATA_TREE_HEIGHT,
+    Array.from({ length: PUBLIC_DATA_TREE_HEIGHT }, (_, i) => toBufferBE(BigInt(seed + i + 6), 32)),
+  );
+
+  return new PublicDataWitness(BigInt(seed + 5), leafPreimage, siblingPath);
+}