Update graph-node tests to use dummy indexer (#65)

* Update test to call handlers to use dummy indexer

* Update graph-node tests to use dummy indexer

packages/graph-node/src/call-handler.test.ts

@@ -7,11 +7,12 @@ import chai, { assert, expect } from 'chai';
 import spies from 'chai-spies';
 import { utils } from 'ethers';
 
-import { getDummyEventData, getTestDatabase } from '../test/utils';
+import { getDummyEventData, getDummyGraphData, getTestDatabase, getTestIndexer } from '../test/utils';
 import abi from '../test/subgraph/example1/build/Example1/abis/Example1.json';
 import { instantiate } from './loader';
 import { createEvent, createBlock, Block } from './utils';
 import { Database } from './database';
+import { Indexer } from '../test/utils/indexer';
 
 chai.use(spies);
 
@@ -20,12 +21,21 @@ const sandbox = chai.spy.sandbox();
 describe('call handler in mapping code', () => {
   let exports: any;
   let db: Database;
+  let indexer: Indexer;
 
-  // Create dummy event data.
+  // Create dummy test data.
   const dummyEventData = getDummyEventData();
+  const dummyGraphData = getDummyGraphData();
 
   before(async () => {
     db = getTestDatabase();
+    indexer = getTestIndexer();
+
+    sandbox.on(indexer, 'createDiffStaged', (contractAddress: string, blockHash: string, data: any) => {
+      assert(contractAddress);
+      assert(blockHash);
+      assert(data);
+    });
 
     sandbox.on(db, 'getEntity', (blockHash: string, entityString: string, idString: string) => {
       assert(blockHash);
@@ -34,20 +44,12 @@ describe('call handler in mapping code', () => {
     });
 
     sandbox.on(db, 'fromGraphEntity', async (instanceExports: any, block: Block, entity: string, entityInstance: any) => {
-      const entityFields = [
-        { type: 'varchar', propertyName: 'id' },
-        { type: 'bigint', propertyName: 'count' },
-        { type: 'varchar', propertyName: 'paramString' },
-        { type: 'integer', propertyName: 'paramInt' },
-        { type: 'bigint', propertyName: 'paramBigInt' },
-        { type: 'boolean', propertyName: 'paramBoolean' },
-        { type: 'varchar', propertyName: 'paramBytes' },
-        { type: 'numeric', propertyName: 'paramBigDecimal' },
-        { type: 'varchar', propertyName: 'related' },
-        { type: 'varchar', propertyName: 'manyRelated' }
-      ];
+      assert(instanceExports);
+      assert(block);
+      assert(entity);
+      assert(entityInstance);
 
-      return db.getEntityValues(instanceExports, block, entityInstance, entityFields);
+      return {};
     });
 
     sandbox.on(db, 'saveEntity', (entity: string, data: any) => {
@@ -58,19 +60,23 @@ describe('call handler in mapping code', () => {
 
   it('should load the subgraph example wasm', async () => {
     const filePath = path.resolve(__dirname, '../test/subgraph/example1/build/Example1/Example1.wasm');
-    const instance = await instantiate(db, { event: { block: dummyEventData.block } }, filePath);
+    const instance = await instantiate(
+      db,
+      indexer,
+      { event: { block: dummyEventData.block } },
+      filePath,
+      dummyGraphData
+    );
     exports = instance.exports;
-  });
-
-  it('should execute the event handler function', async () => {
-    const {
-      _start,
-      handleTest
-    } = exports;
+    const { _start } = exports;
 
     // Important to call _start for built subgraphs on instantiation!
     // TODO: Check api version https://github.com/graphprotocol/graph-node/blob/6098daa8955bdfac597cec87080af5449807e874/runtime/wasm/src/module/mod.rs#L533
     _start();
+  });
+
+  it('should execute the event handler function', async () => {
+    const { handleTest } = exports;
 
     // Create event params data.
     const contractInterface = new utils.Interface(abi);
@@ -94,16 +100,13 @@ describe('call handler in mapping code', () => {
     expect(db.getEntity).to.have.been.called();
     expect(db.fromGraphEntity).to.have.been.called();
     expect(db.saveEntity).to.have.been.called();
+    expect(indexer.createDiffStaged).to.have.been.called();
   });
 
   it('should execute the block handler function', async () => {
-    const { _start, handleBlock } = exports;
+    const { handleBlock } = exports;
     const blockData = dummyEventData.block;
 
-    // Important to call _start for built subgraphs on instantiation!
-    // TODO: Check api version https://github.com/graphprotocol/graph-node/blob/6098daa8955bdfac597cec87080af5449807e874/runtime/wasm/src/module/mod.rs#L533
-    _start();
-
     // Create an ethereum block to be passed to the handler.
     const block = await createBlock(exports, blockData);
 

packages/graph-node/src/eden.test.ts

@@ -13,8 +13,9 @@ import { createEvent, Block, createBlock } from './utils';
 import edenNetworkAbi from '../test/subgraph/eden/EdenNetwork/abis/EdenNetwork.json';
 import merkleDistributorAbi from '../test/subgraph/eden/EdenNetworkDistribution/abis/MerkleDistributor.json';
 import distributorGovernanceAbi from '../test/subgraph/eden/EdenNetworkGovernance/abis/DistributorGovernance.json';
-import { getDummyEventData, getTestDatabase } from '../test/utils';
+import { getDummyEventData, getTestDatabase, getTestIndexer } from '../test/utils';
 import { Database } from './database';
+import { Indexer } from '../test/utils/indexer';
 
 const ZERO_ADDRESS = '0x0000000000000000000000000000000000000000';
 
@@ -24,12 +25,20 @@ const sandbox = chai.spy.sandbox();
 
 describe('eden wasm loader tests', async () => {
   let db: Database;
+  let indexer: Indexer;
 
   // Create dummy event data.
   const dummyEventData = getDummyEventData();
 
   before(async () => {
     db = getTestDatabase();
+    indexer = getTestIndexer();
+
+    sandbox.on(indexer, 'createDiffStaged', (contractAddress: string, blockHash: string, data: any) => {
+      assert(contractAddress);
+      assert(blockHash);
+      assert(data);
+    });
 
     sandbox.on(db, 'getEntity', (blockHash: string, entityString: string, idString: string) => {
       assert(blockHash);
@@ -69,7 +78,13 @@ describe('eden wasm loader tests', async () => {
 
     it('should load the subgraph network wasm', async () => {
       const filePath = path.resolve(__dirname, '../test/subgraph/eden/EdenNetwork/EdenNetwork.wasm');
-      ({ exports } = await instantiate(db, { event: { block: dummyEventData.block } }, filePath, data));
+      ({ exports } = await instantiate(
+        db,
+        indexer,
+        { event: { block: dummyEventData.block } },
+        filePath,
+        data
+      ));
       const { _start } = exports;
       _start();
     });
@@ -80,7 +95,7 @@ describe('eden wasm loader tests', async () => {
       } = exports;
 
       // Create dummy SlotClaimedEvent params.
-      const eventFragment = contractInterface.getEvent('SlotClaimed(indexed uint8,indexed address,indexed address,uint128,uint128,uint16,uint16)');
+      const eventFragment = contractInterface.getEvent('SlotClaimed(uint8,address,address,uint128,uint128,uint16,uint16)');
       dummyEventData.inputs = eventFragment.inputs;
       dummyEventData.event = {
         slot: 0,
@@ -104,7 +119,7 @@ describe('eden wasm loader tests', async () => {
       } = exports;
 
       // Create dummy SlotDelegateUpdatedEvent params.
-      const eventFragment = contractInterface.getEvent('SlotDelegateUpdated(indexed uint8,indexed address,indexed address,address)');
+      const eventFragment = contractInterface.getEvent('SlotDelegateUpdated(uint8,address,address,address)');
       dummyEventData.inputs = eventFragment.inputs;
       dummyEventData.event = {
         slot: 0,
@@ -125,7 +140,7 @@ describe('eden wasm loader tests', async () => {
       } = exports;
 
       // Create dummy StakeEvent params.
-      const eventFragment = contractInterface.getEvent('Stake(indexed address,uint256)');
+      const eventFragment = contractInterface.getEvent('Stake(address,uint256)');
       dummyEventData.inputs = eventFragment.inputs;
       dummyEventData.event = {
         staker: '0xDC7d7A8920C8Eecc098da5B7522a5F31509b5Bfc',
@@ -144,7 +159,7 @@ describe('eden wasm loader tests', async () => {
       } = exports;
 
       // Create dummy UnstakeEvent params.
-      const eventFragment = contractInterface.getEvent('Unstake(indexed address,uint256)');
+      const eventFragment = contractInterface.getEvent('Unstake(address,uint256)');
       dummyEventData.inputs = eventFragment.inputs;
       dummyEventData.event = {
         staker: ZERO_ADDRESS,
@@ -178,7 +193,12 @@ describe('eden wasm loader tests', async () => {
 
     it('should load the subgraph network distribution wasm', async () => {
       const filePath = path.resolve(__dirname, '../test/subgraph/eden/EdenNetworkDistribution/EdenNetworkDistribution.wasm');
-      ({ exports } = await instantiate(db, { event: { block: dummyEventData.block } }, filePath, data));
+      ({ exports } = await instantiate(db,
+        indexer,
+        { event: { block: dummyEventData.block } },
+        filePath,
+        data
+      ));
       const { _start } = exports;
       _start();
     });
@@ -189,7 +209,7 @@ describe('eden wasm loader tests', async () => {
       } = exports;
 
       // Create dummy ClaimedEvent params.
-      const eventFragment = contractInterface.getEvent('Claimed(uint256,uint256,indexed address,uint256)');
+      const eventFragment = contractInterface.getEvent('Claimed(uint256,uint256,address,uint256)');
       dummyEventData.inputs = eventFragment.inputs;
       dummyEventData.event = {
         index: BigInt(1),
@@ -210,7 +230,7 @@ describe('eden wasm loader tests', async () => {
       } = exports;
 
       // Create dummy SlashedEvent params.
-      const eventFragment = contractInterface.getEvent('Slashed(indexed address,uint256)');
+      const eventFragment = contractInterface.getEvent('Slashed(address,uint256)');
       dummyEventData.inputs = eventFragment.inputs;
       dummyEventData.event = {
         account: ZERO_ADDRESS,
@@ -249,7 +269,7 @@ describe('eden wasm loader tests', async () => {
       } = exports;
 
       // Create dummy AccountUpdatedEvent params.
-      const eventFragment = contractInterface.getEvent('AccountUpdated(indexed address,uint256,uint256)');
+      const eventFragment = contractInterface.getEvent('AccountUpdated(address,uint256,uint256)');
       dummyEventData.inputs = eventFragment.inputs;
       dummyEventData.event = {
         account: ZERO_ADDRESS,
@@ -284,7 +304,13 @@ describe('eden wasm loader tests', async () => {
 
     it('should load the subgraph network governance wasm', async () => {
       const filePath = path.resolve(__dirname, '../test/subgraph/eden/EdenNetworkGovernance/EdenNetworkGovernance.wasm');
-      ({ exports } = await instantiate(db, { event: { block: dummyEventData.block } }, filePath, data));
+      ({ exports } = await instantiate(
+        db,
+        indexer,
+        { event: { block: dummyEventData.block } },
+        filePath,
+        data
+      ));
       const { _start } = exports;
       _start();
     });
@@ -295,9 +321,9 @@ describe('eden wasm loader tests', async () => {
       } = exports;
 
       // Create dummy BlockProducerAddedEvent params.
-      const eventFragment = contractInterface.getEvent('BlockProducerAdded(indexed address)');
+      const eventFragment = contractInterface.getEvent('BlockProducerAdded(address)');
       dummyEventData.inputs = eventFragment.inputs;
-      dummyEventData.event = { produces: ZERO_ADDRESS };
+      dummyEventData.event = { producer: ZERO_ADDRESS };
 
       // Create an ethereum event BlockProducerAddedEvent to be passed to handler.
       const blockProducerAddedEvent = await createEvent(exports, contractAddress, dummyEventData);
@@ -311,7 +337,7 @@ describe('eden wasm loader tests', async () => {
       } = exports;
 
       // Create dummy BlockProducerRemovedEvent params.
-      const eventFragment = contractInterface.getEvent('BlockProducerRemoved(indexed address)');
+      const eventFragment = contractInterface.getEvent('BlockProducerRemoved(address)');
       dummyEventData.inputs = eventFragment.inputs;
       dummyEventData.event = { producer: ZERO_ADDRESS };
 
@@ -327,7 +353,7 @@ describe('eden wasm loader tests', async () => {
       } = exports;
 
       // Create dummy BlockProducerRewardCollectorChangedEvent params.
-      const eventFragment = contractInterface.getEvent('BlockProducerRewardCollectorChanged(indexed address,indexed address)');
+      const eventFragment = contractInterface.getEvent('BlockProducerRewardCollectorChanged(address,address)');
       dummyEventData.inputs = eventFragment.inputs;
       dummyEventData.event = {
         producer: ZERO_ADDRESS,

packages/graph-node/src/eth-call.test.ts

@@ -7,12 +7,14 @@ import path from 'path';
 
 import { instantiate } from './loader';
 import exampleAbi from '../test/subgraph/example1/build/Example1/abis/Example1.json';
-import { getTestDatabase } from '../test/utils';
+import { getTestDatabase, getTestIndexer } from '../test/utils';
 import { Database } from './database';
+import { Indexer } from '../test/utils/indexer';
 
 describe('eth-call wasm tests', () => {
   let exports: any;
   let db: Database;
+  let indexer: Indexer;
 
   const contractAddress = process.env.EXAMPLE_CONTRACT_ADDRESS;
   assert(contractAddress);
@@ -28,21 +30,41 @@ describe('eth-call wasm tests', () => {
 
   before(async () => {
     db = getTestDatabase();
+    indexer = getTestIndexer();
   });
 
   it('should load the subgraph example wasm', async () => {
     const filePath = path.resolve(__dirname, '../test/subgraph/example1/build/Example1/Example1.wasm');
-    const instance = await instantiate(db, { event: {} }, filePath, data);
+    const instance = await instantiate(
+      db,
+      indexer,
+      { event: {} },
+      filePath,
+      data
+    );
     exports = instance.exports;
-  });
-
-  it('should execute exported function', async () => {
-    const { _start, testEthCall } = exports;
+    const { _start } = exports;
 
     // Important to call _start for built subgraphs on instantiation!
     // TODO: Check api version https://github.com/graphprotocol/graph-node/blob/6098daa8955bdfac597cec87080af5449807e874/runtime/wasm/src/module/mod.rs#L533
     _start();
+  });
 
-    await testEthCall();
+  it('should execute exported getMethod function', async () => {
+    const { testGetEthCall } = exports;
+
+    await testGetEthCall();
+  });
+
+  it('should execute exported addMethod function', async () => {
+    const { testAddEthCall } = exports;
+
+    await testAddEthCall();
+  });
+
+  it('should execute exported structMethod function', async () => {
+    const { testStructEthCall } = exports;
+
+    await testStructEthCall();
   });
 });

packages/graph-node/src/loader.test.ts

@@ -6,20 +6,28 @@ import path from 'path';
 import { expect } from 'chai';
 
 import { instantiate } from './loader';
-import { getTestDatabase } from '../test/utils';
+import { getTestDatabase, getTestIndexer } from '../test/utils';
 import { Database } from './database';
+import { Indexer } from '../test/utils/indexer';
 
 const WASM_FILE_PATH = '../build/debug.wasm';
 
 describe('wasm loader tests', () => {
   let exports: any;
   let db: Database;
+  let indexer: Indexer;
 
   before(async () => {
     db = getTestDatabase();
+    indexer = getTestIndexer();
 
     const filePath = path.resolve(__dirname, WASM_FILE_PATH);
-    const instance = await instantiate(db, { event: {} }, filePath);
+    const instance = await instantiate(
+      db,
+      indexer,
+      { event: {} },
+      filePath
+    );
 
     exports = instance.exports;
   });

packages/graph-node/src/numbers.test.ts

@@ -6,20 +6,28 @@ import path from 'path';
 import { expect } from 'chai';
 
 import { instantiate } from './loader';
-import { getTestDatabase } from '../test/utils';
+import { getTestDatabase, getTestIndexer } from '../test/utils';
 import { Database } from './database';
+import { Indexer } from '../test/utils/indexer';
 
 const EXAMPLE_WASM_FILE_PATH = '../test/subgraph/example1/build/Example1/Example1.wasm';
 
 describe('numbers wasm tests', () => {
   let exports: any;
   let db: Database;
+  let indexer: Indexer;
 
   before(async () => {
     db = getTestDatabase();
+    indexer = getTestIndexer();
 
     const filePath = path.resolve(__dirname, EXAMPLE_WASM_FILE_PATH);
-    const instance = await instantiate(db, { event: {} }, filePath);
+    const instance = await instantiate(
+      db,
+      indexer,
+      { event: {} },
+      filePath
+    );
     exports = instance.exports;
     const { _start } = exports;
 

packages/graph-node/src/type-conversion.test.ts

@@ -6,20 +6,28 @@ import path from 'path';
 import { expect } from 'chai';
 
 import { instantiate } from './loader';
-import { getTestDatabase } from '../test/utils';
+import { getTestDatabase, getTestIndexer } from '../test/utils';
 import { Database } from './database';
+import { Indexer } from '../test/utils/indexer';
 
 const EXAMPLE_WASM_FILE_PATH = '../test/subgraph/example1/build/Example1/Example1.wasm';
 
 describe('typeConversion wasm tests', () => {
   let exports: any;
   let db: Database;
+  let indexer: Indexer;
 
   before(async () => {
     db = getTestDatabase();
+    indexer = getTestIndexer();
 
     const filePath = path.resolve(__dirname, EXAMPLE_WASM_FILE_PATH);
-    const instance = await instantiate(db, { event: {} }, filePath);
+    const instance = await instantiate(
+      db,
+      indexer,
+      { event: { } },
+      filePath
+    );
     exports = instance.exports;
     const { _start } = exports;
 

packages/graph-node/test/subgraph/example1/src/mapping.ts

@@ -66,22 +66,6 @@ export function handleTest (event: Test): void {
 
   blog.save();
 
-  const contractAddress = dataSource.address();
-  const contract = Example1.bind(contractAddress);
-
-  // Access functions by calling them.
-  const res1 = contract.try_addMethod(BigInt.fromString('10'), BigInt.fromString('20'));
-  if (res1.reverted) {
-    log.debug('Contract eth call reverted', []);
-  } else {
-    log.debug('Contract eth call result: {}', [res1.value.toString()]);
-  }
-
-  // Access functions by calling them.
-  const res = contract.structMethod(BigInt.fromString('1000'), BigInt.fromString('500'));
-
-  log.debug('Contract eth call result: {}', [res.bidAmount1.toString()]);
-
   // Note: If a handler doesn't require existing field values, it is faster
   // _not_ to load the entity from the store. Instead, create it fresh with
   // `new Entity(...)`, set the fields that should be updated and save the
@@ -124,8 +108,8 @@ export function handleBlock (block: ethereum.Block): void {
   }
 }
 
-export function testEthCall (): void {
-  log.debug('In test eth call', []);
+export function testGetEthCall (): void {
+  log.debug('In test get eth call', []);
 
   // Bind the contract to the address that emitted the event.
   // TODO: Address.fromString throws error in WASM module instantiation.
@@ -141,6 +125,38 @@ export function testEthCall (): void {
   }
 }
 
+export function testAddEthCall (): void {
+  log.debug('In test add eth call', []);
+
+  const contractAddress = dataSource.address();
+  const contract = Example1.bind(contractAddress);
+
+  // Access functions by calling them.
+  const res = contract.try_addMethod(BigInt.fromString('10'), BigInt.fromString('20'));
+  if (res.reverted) {
+    log.debug('Contract eth call reverted', []);
+  } else {
+    log.debug('Contract eth call result: {}', [res.value.toString()]);
+  }
+}
+
+export function testStructEthCall (): void {
+  log.debug('In test struct eth call', []);
+
+  // Bind the contract to the address that emitted the event.
+  // TODO: Address.fromString throws error in WASM module instantiation.
+  const contractAddress = dataSource.address();
+  const contract = Example1.bind(contractAddress);
+
+  // Access functions by calling them.
+  const res = contract.try_structMethod(BigInt.fromString('1000'), BigInt.fromString('500'));
+  if (res.reverted) {
+    log.debug('Contract eth call reverted', []);
+  } else {
+    log.debug('Contract eth call result: {}, {}', [res.value.bidAmount1.toString(), res.value.bidAmount2.toString()]);
+  }
+}
+
 export function testBytesToHex (): string {
   log.debug('In test bytesToHex', []);
 

packages/graph-node/test/utils/index.ts

@@ -4,6 +4,7 @@
 
 import { EventData } from '../../src/utils';
 import { Database } from '../../src/database';
+import { Indexer } from './indexer';
 
 export const ZERO_ADDRESS = '0x0000000000000000000000000000000000000000';
 export const ZERO_HASH = '0x0000000000000000000000000000000000000000000000000000000000000000';
@@ -40,6 +41,18 @@ export const getDummyEventData = (): EventData => {
   };
 };
 
+export const getDummyGraphData = (): any => {
+  return {
+    dataSource: {
+      address: ZERO_ADDRESS
+    }
+  };
+};
+
 export const getTestDatabase = (): Database => {
   return new Database({ type: 'postgres' }, '');
 };
+
+export const getTestIndexer = (): Indexer => {
+  return new Indexer();
+};

packages/graph-node/test/utils/indexer.ts

@@ -0,0 +1,123 @@
+import assert from 'assert';
+import { DeepPartial } from 'typeorm';
+
+import {
+  IndexerInterface,
+  BlockProgressInterface,
+  EventInterface,
+  SyncStatusInterface
+} from '@vulcanize/util';
+
+export class Indexer implements IndexerInterface {
+  async getBlockProgress (blockHash: string): Promise<BlockProgressInterface | undefined> {
+    assert(blockHash);
+
+    return undefined;
+  }
+
+  async getEvent (id: string): Promise<EventInterface | undefined> {
+    assert(id);
+
+    return undefined;
+  }
+
+  async getSyncStatus (): Promise<SyncStatusInterface | undefined> {
+    return undefined;
+  }
+
+  async getBlock (blockHash: string): Promise<any> {
+    assert(blockHash);
+
+    return undefined;
+  }
+
+  async getBlocksAtHeight (height: number, isPruned: boolean): Promise<BlockProgressInterface[]> {
+    assert(height);
+    assert(isPruned);
+
+    return [];
+  }
+
+  async getBlockEvents (blockHash: string): Promise<Array<EventInterface>> {
+    assert(blockHash);
+
+    return [];
+  }
+
+  async getAncestorAtDepth (blockHash: string, depth: number): Promise<string> {
+    assert(blockHash);
+    assert(depth);
+
+    return '';
+  }
+
+  async getOrFetchBlockEvents (block: DeepPartial<BlockProgressInterface>): Promise<Array<EventInterface>> {
+    assert(block);
+
+    return [];
+  }
+
+  async removeUnknownEvents (block: BlockProgressInterface): Promise<void> {
+    assert(block);
+  }
+
+  async updateBlockProgress (blockHash: string, lastProcessedEventIndex: number): Promise<void> {
+    assert(blockHash);
+    assert(lastProcessedEventIndex);
+  }
+
+  async updateSyncStatusChainHead (blockHash: string, blockNumber: number): Promise<SyncStatusInterface> {
+    assert(blockHash);
+    assert(blockNumber);
+
+    return new SyncStatus();
+  }
+
+  async updateSyncStatusIndexedBlock (blockHash: string, blockNumber: number, force?: boolean): Promise<SyncStatusInterface> {
+    assert(blockNumber);
+    assert(blockHash);
+    assert(force);
+
+    return new SyncStatus();
+  }
+
+  async updateSyncStatusCanonicalBlock (blockHash: string, blockNumber: number, force?: boolean): Promise<SyncStatusInterface> {
+    assert(blockNumber);
+    assert(blockHash);
+    assert(force);
+
+    return new SyncStatus();
+  }
+
+  async markBlocksAsPruned (blocks: BlockProgressInterface[]): Promise<void> {
+    assert(blocks);
+
+    return undefined;
+  }
+
+  async createDiffStaged (contractAddress: string, blockHash: string, data: any): Promise<void> {
+    assert(contractAddress);
+    assert(blockHash);
+    assert(data);
+  }
+}
+
+class SyncStatus implements SyncStatusInterface {
+  id: number;
+  chainHeadBlockHash: string;
+  chainHeadBlockNumber: number;
+  latestIndexedBlockHash: string;
+  latestIndexedBlockNumber: number;
+  latestCanonicalBlockHash: string;
+  latestCanonicalBlockNumber: number;
+
+  constructor () {
+    this.id = 0;
+    this.chainHeadBlockHash = '0';
+    this.chainHeadBlockNumber = 0;
+    this.latestIndexedBlockHash = '0';
+    this.latestIndexedBlockNumber = 0;
+    this.latestCanonicalBlockHash = '0';
+    this.latestCanonicalBlockNumber = 0;
+  }
+}