serialization tests

yarn-project/circuits.js/src/structs/parity/base_parity_inputs.test.ts

@@ -0,0 +1,11 @@
+import { makeBaseParityInputs } from '../../tests/factories.js';
+import { BaseParityInputs } from './base_parity_inputs.js';
+
+describe('BaseParityInputs', () => {
+  it(`serializes a BaseParityInputs to buffer and deserializes it back`, () => {
+    const expected = makeBaseParityInputs();
+    const buffer = expected.toBuffer();
+    const res = BaseParityInputs.fromBuffer(buffer);
+    expect(res).toEqual(expected);
+  });
+});

yarn-project/circuits.js/src/structs/parity/base_parity_inputs.ts

@@ -1,5 +1,5 @@
 import { Fr } from '@aztec/foundation/fields';
-import { Tuple } from '@aztec/foundation/serialize';
+import { BufferReader, Tuple, serializeToBuffer } from '@aztec/foundation/serialize';
 
 import { NUMBER_OF_L1_L2_MESSAGES_PER_ROLLUP, NUM_MSGS_PER_BASE_PARITY } from '../../constants.gen.js';
 
@@ -18,4 +18,13 @@ export class BaseParityInputs {
     const msgs = array.slice(start, end);
     return new BaseParityInputs(msgs as Tuple<Fr, typeof NUM_MSGS_PER_BASE_PARITY>);
   }
+
+  toBuffer() {
+    return serializeToBuffer(this.msgs);
+  }
+
+  static fromBuffer(buffer: Buffer | BufferReader) {
+    const reader = BufferReader.asReader(buffer);
+    return new BaseParityInputs(reader.readArray(NUM_MSGS_PER_BASE_PARITY, Fr));
+  }
 }

yarn-project/circuits.js/src/structs/parity/parity_public_inputs.test.ts

@@ -0,0 +1,11 @@
+import { makeParityPublicInputs } from '../../tests/factories.js';
+import { ParityPublicInputs } from './parity_public_inputs.js';
+
+describe('ParityPublicInputs', () => {
+  it(`serializes a ParityPublicInputs to buffer and deserializes it back`, () => {
+    const expected = makeParityPublicInputs();
+    const buffer = expected.toBuffer();
+    const res = ParityPublicInputs.fromBuffer(buffer);
+    expect(res).toEqual(expected);
+  });
+});

yarn-project/circuits.js/src/structs/parity/parity_public_inputs.ts

@@ -1,5 +1,5 @@
 import { Fr } from '@aztec/foundation/fields';
-import { serializeToBuffer } from '@aztec/foundation/serialize';
+import { BufferReader, serializeToBuffer } from '@aztec/foundation/serialize';
 import { FieldsOf } from '@aztec/foundation/types';
 
 import { AggregationObject } from '../aggregation_object.js';
@@ -29,4 +29,9 @@ export class ParityPublicInputs {
   static getFields(fields: FieldsOf<ParityPublicInputs>) {
     return [fields.aggregationObject, fields.shaRoot, fields.convertedRoot] as const;
   }
+
+  static fromBuffer(buffer: Buffer | BufferReader) {
+    const reader = BufferReader.asReader(buffer);
+    return new ParityPublicInputs(reader.readObject(AggregationObject), reader.readBytes(32), reader.readObject(Fr));
+  }
 }

yarn-project/circuits.js/src/structs/parity/root_parity_input.test.ts

@@ -0,0 +1,11 @@
+import { makeRootParityInput } from '../../tests/factories.js';
+import { RootParityInput } from './root_parity_input.js';
+
+describe('RootParityInput', () => {
+  it(`serializes a RootParityInput to buffer and deserializes it back`, () => {
+    const expected = makeRootParityInput();
+    const buffer = expected.toBuffer();
+    const res = RootParityInput.fromBuffer(buffer);
+    expect(res).toEqual(expected);
+  });
+});

yarn-project/circuits.js/src/structs/parity/root_parity_input.ts

@@ -1,4 +1,4 @@
-import { serializeToBuffer } from '@aztec/foundation/serialize';
+import { BufferReader, serializeToBuffer } from '@aztec/foundation/serialize';
 import { FieldsOf } from '@aztec/foundation/types';
 
 import { Proof } from '../proof.js';
@@ -23,4 +23,9 @@ export class RootParityInput {
   static getFields(fields: FieldsOf<RootParityInput>) {
     return [fields.proof, fields.publicInputs] as const;
   }
+
+  static fromBuffer(buffer: Buffer | BufferReader) {
+    const reader = BufferReader.asReader(buffer);
+    return new RootParityInput(reader.readObject(Proof), reader.readObject(ParityPublicInputs));
+  }
 }

yarn-project/circuits.js/src/structs/parity/root_parity_inputs.test.ts

@@ -0,0 +1,11 @@
+import { makeRootParityInputs } from '../../tests/factories.js';
+import { RootParityInputs } from './root_parity_inputs.js';
+
+describe('RootParityInputs', () => {
+  it(`serializes a RootParityInputs to buffer and deserializes it back`, () => {
+    const expected = makeRootParityInputs();
+    const buffer = expected.toBuffer();
+    const res = RootParityInputs.fromBuffer(buffer);
+    expect(res).toEqual(expected);
+  });
+});

yarn-project/circuits.js/src/structs/parity/root_parity_inputs.ts

@@ -1,4 +1,4 @@
-import { Tuple } from '@aztec/foundation/serialize';
+import { BufferReader, Tuple, serializeToBuffer } from '@aztec/foundation/serialize';
 
 import { NUM_BASE_PARITY_PER_ROOT_PARITY } from '../../constants.gen.js';
 import { RootParityInput } from './root_parity_input.js';
@@ -8,4 +8,13 @@ export class RootParityInputs {
     /** Public inputs of children and their proofs. */
     public readonly children: Tuple<RootParityInput, typeof NUM_BASE_PARITY_PER_ROOT_PARITY>,
   ) {}
+
+  toBuffer() {
+    return serializeToBuffer(this.children);
+  }
+
+  static fromBuffer(buffer: Buffer | BufferReader) {
+    const reader = BufferReader.asReader(buffer);
+    return new RootParityInputs(reader.readArray(NUM_BASE_PARITY_PER_ROOT_PARITY, RootParityInput));
+  }
 }

yarn-project/circuits.js/src/tests/factories.ts

@@ -12,6 +12,7 @@ import {
   AggregationObject,
   AppendOnlyTreeSnapshot,
   BaseOrMergeRollupPublicInputs,
+  BaseParityInputs,
   BaseRollupInputs,
   CallContext,
   CallRequest,
@@ -71,7 +72,9 @@ import {
   NULLIFIER_SUBTREE_SIBLING_PATH_LENGTH,
   NULLIFIER_TREE_HEIGHT,
   NUMBER_OF_L1_L2_MESSAGES_PER_ROLLUP,
+  NUM_BASE_PARITY_PER_ROOT_PARITY,
   NUM_FIELDS_PER_SHA256,
+  NUM_MSGS_PER_BASE_PARITY,
   NoteHashReadRequestMembershipWitness,
   NullifierKeyValidationRequest,
   NullifierKeyValidationRequestContext,
@@ -110,6 +113,7 @@ import {
   ReadRequestContext,
   RollupTypes,
   RootParityInput,
+  RootParityInputs,
   RootRollupInputs,
   RootRollupPublicInputs,
   SideEffect,
@@ -1046,6 +1050,14 @@ export function makeParityPublicInputs(seed = 0): ParityPublicInputs {
   );
 }
 
+export function makeBaseParityInputs(seed = 0): BaseParityInputs {
+  return new BaseParityInputs(makeTuple(NUM_MSGS_PER_BASE_PARITY, fr, seed + 0x3000));
+}
+
+export function makeRootParityInputs(seed = 0): RootParityInputs {
+  return new RootParityInputs(makeTuple(NUM_BASE_PARITY_PER_ROOT_PARITY, makeRootParityInput, seed + 0x4000));
+}
+
 /**
  * Makes root rollup public inputs.
  * @param seed - The seed to use for generating the root rollup public inputs.