feat: tests for CrossChainProvider constructor and getMessagesByTransaction

packages/sdk/src/cross-chain-provider.ts

+/* eslint-disable @typescript-eslint/no-unused-vars */
+import {
+  Provider,
+  BlockTag,
+  TransactionReceipt,
+} from '@ethersproject/abstract-provider'
+import { BigNumber } from 'ethers'
+import {
+  ICrossChainProvider,
+  OEContracts,
+  OEContractsLike,
+  MessageLike,
+  TransactionLike,
+  AddressLike,
+  NumberLike,
+  ProviderLike,
+  CrossChainMessage,
+  MessageDirection,
+  MessageStatus,
+  TokenBridgeMessage,
+  MessageReceipt,
+} from './interfaces'
+import {
+  toProvider,
+  toBigNumber,
+  toTransactionHash,
+  DeepPartial,
+  getAllOEContracts,
+} from './utils'
+
+export class CrossChainProvider implements ICrossChainProvider {
+  public l1Provider: Provider
+  public l2Provider: Provider
+  public l1ChainId: number
+  public contracts: OEContracts
+
+  /**
+   * Creates a new CrossChainProvider instance.
+   *
+   * @param opts Options for the provider.
+   * @param opts.l1Provider Provider for the L1 chain, or a JSON-RPC url.
+   * @param opts.l2Provider Provider for the L2 chain, or a JSON-RPC url.
+   * @param opts.l1ChainId Chain ID for the L1 chain.
+   * @param opts.contracts Optional contract address overrides.
+   */
+  constructor(opts: {
+    l1Provider: ProviderLike
+    l2Provider: ProviderLike
+    l1ChainId: NumberLike
+    contracts?: DeepPartial<OEContractsLike>
+  }) {
+    this.l1Provider = toProvider(opts.l1Provider)
+    this.l2Provider = toProvider(opts.l2Provider)
+    this.l1ChainId = toBigNumber(opts.l1ChainId).toNumber()
+    this.contracts = getAllOEContracts(this.l1ChainId, {
+      l1SignerOrProvider: this.l1Provider,
+      l2SignerOrProvider: this.l2Provider,
+      overrides: opts.contracts,
+    })
+  }
+
+  public async getMessagesByTransaction(
+    transaction: TransactionLike,
+    opts: {
+      direction?: MessageDirection
+    } = {}
+  ): Promise<CrossChainMessage[]> {
+    const txHash = toTransactionHash(transaction)
+
+    let receipt: TransactionReceipt
+    if (opts.direction !== undefined) {
+      // Get the receipt for the requested direction.
+      if (opts.direction === MessageDirection.L1_TO_L2) {
+        receipt = await this.l1Provider.getTransactionReceipt(txHash)
+      } else {
+        receipt = await this.l2Provider.getTransactionReceipt(txHash)
+      }
+    } else {
+      // Try both directions, starting with L1 => L2.
+      receipt = await this.l1Provider.getTransactionReceipt(txHash)
+      if (receipt) {
+        opts.direction = MessageDirection.L1_TO_L2
+      } else {
+        receipt = await this.l2Provider.getTransactionReceipt(txHash)
+        opts.direction = MessageDirection.L2_TO_L1
+      }
+    }
+
+    if (!receipt) {
+      throw new Error(`unable to find transaction receipt for ${txHash}`)
+    }
+
+    // By this point opts.direction will always be defined.
+    const messenger =
+      opts.direction === MessageDirection.L1_TO_L2
+        ? this.contracts.l1.L1CrossDomainMessenger
+        : this.contracts.l2.L2CrossDomainMessenger
+
+    return receipt.logs
+      .filter((log) => {
+        // Only look at logs emitted by the messenger address
+        return log.address === messenger.address
+      })
+      .filter((log) => {
+        // Only look at SentMessage logs specifically
+        const parsed = messenger.interface.parseLog(log)
+        return parsed.name === 'SentMessage'
+      })
+      .map((log) => {
+        // Convert each SentMessage log into a message object
+        const parsed = messenger.interface.parseLog(log)
+        return {
+          direction: opts.direction,
+          target: parsed.args.target,
+          sender: parsed.args.sender,
+          message: parsed.args.message,
+          messageNonce: parsed.args.messageNonce,
+        }
+      })
+  }
+
+  public async getMessagesByAddress(
+    address: AddressLike,
+    opts?: {
+      direction?: MessageDirection
+      fromBlock?: NumberLike
+      toBlock?: NumberLike
+    }
+  ): Promise<CrossChainMessage[]> {
+    throw new Error('Not implemented')
+  }
+
+  public async getTokenBridgeMessagesByAddress(
+    address: AddressLike,
+    opts?: {
+      direction?: MessageDirection
+      fromBlock?: BlockTag
+      toBlock?: BlockTag
+    }
+  ): Promise<TokenBridgeMessage[]> {
+    throw new Error('Not implemented')
+  }
+
+  public async getMessageStatus(message: MessageLike): Promise<MessageStatus> {
+    throw new Error('Not implemented')
+  }
+
+  public async getMessageReceipt(
+    message: MessageLike
+  ): Promise<MessageReceipt> {
+    throw new Error('Not implemented')
+  }
+
+  public async waitForMessageReciept(
+    message: MessageLike,
+    opts?: {
+      confirmations?: number
+      pollIntervalMs?: number
+      timeoutMs?: number
+    }
+  ): Promise<MessageReceipt> {
+    throw new Error('Not implemented')
+  }
+
+  public async estimateL2MessageGasLimit(
+    message: MessageLike
+  ): Promise<BigNumber> {
+    throw new Error('Not implemented')
+  }
+
+  public async estimateMessageWaitTimeSeconds(
+    message: MessageLike
+  ): Promise<number> {
+    throw new Error('Not implemented')
+  }
+
+  public async estimateMessageWaitTimeBlocks(
+    message: MessageLike
+  ): Promise<number> {
+    throw new Error('Not implemented')
+  }
+}

packages/sdk/src/index.ts

 export * from './interfaces'
 export * from './utils'
+export * from './cross-chain-provider'

packages/sdk/src/utils/contracts.ts

@@ -80,6 +80,20 @@ export const CONTRACT_ADDRESSES: {
     },
     l2: DEFAULT_L2_CONTRACT_ADDRESSES,
   },
+  // Hardhat local
+  // TODO: Get the actual addresses for this, temporary addresses here are fine for now until we
+  // start using this package in the integration tests.
+  31337: {
+    l1: {
+      AddressManager: '0x2F7E3cAC91b5148d336BbffB224B4dC79F09f01D',
+      L1CrossDomainMessenger: '0xEcC89b9EDD804850C4F343A278Be902be11AaF42',
+      L1StandardBridge: '0x73298186A143a54c20ae98EEE5a025bD5979De02',
+      StateCommitmentChain: '0x1afcA918eff169eE20fF8AB6Be75f3E872eE1C1A',
+      CanonicalTransactionChain: '0x2ebA8c4EfDB39A8Cd8f9eD65c50ec079f7CEBD81',
+      BondManager: '0xE5AE60bD6F8DEe4D0c2BC9268e23B92F1cacC58F',
+    },
+    l2: DEFAULT_L2_CONTRACT_ADDRESSES,
+  },
 }
 
 /**

packages/sdk/test/contracts/ICrossDomainMessenger.sol

+pragma solidity ^0.8.9;
+
+// Right now this is copy/pasted from the contracts package. We need to do this because we don't
+// currently copy the contracts into the root of the contracts package in the correct way until
+// we bundle the contracts package for publication. As a result, we can't properly use the
+// package the way we want to from inside the monorepo (yet). Needs to be fixed as part of a
+// separate pull request.
+
+interface ICrossDomainMessenger {
+    /**********
+     * Events *
+     **********/
+
+    event SentMessage(
+        address indexed target,
+        address sender,
+        bytes message,
+        uint256 messageNonce,
+        uint256 gasLimit
+    );
+    event RelayedMessage(bytes32 indexed msgHash);
+    event FailedRelayedMessage(bytes32 indexed msgHash);
+
+    /*************
+     * Variables *
+     *************/
+
+    function xDomainMessageSender() external view returns (address);
+
+    /********************
+     * Public Functions *
+     ********************/
+
+    /**
+     * Sends a cross domain message to the target messenger.
+     * @param _target Target contract address.
+     * @param _message Message to send to the target.
+     * @param _gasLimit Gas limit for the provided message.
+     */
+    function sendMessage(
+        address _target,
+        bytes calldata _message,
+        uint32 _gasLimit
+    ) external;
+}

packages/sdk/test/contracts/MockMessenger.sol

+pragma solidity ^0.8.9;
+
+import { ICrossDomainMessenger } from "./ICrossDomainMessenger.sol";
+
+contract MockMessenger is ICrossDomainMessenger {
+    function xDomainMessageSender() public view returns (address) {
+        return address(0);
+    }
+
+    // Empty function to satisfy the interface.
+    function sendMessage(
+        address _target,
+        bytes calldata _message,
+        uint32 _gasLimit
+    ) public {
+        return;
+    }
+
+    struct SentMessageEventParams {
+        address target;
+        address sender;
+        bytes message;
+        uint256 messageNonce;
+        uint256 gasLimit;
+    }
+
+    function doNothing() public {
+        return;
+    }
+
+    function triggerSentMessageEvents(
+        SentMessageEventParams[] memory _params
+    ) public {
+        for (uint256 i = 0; i < _params.length; i++) {
+            emit SentMessage(
+                _params[i].target,
+                _params[i].sender,
+                _params[i].message,
+                _params[i].messageNonce,
+                _params[i].gasLimit
+            );
+        }
+    }
+
+    function triggerRelayedMessageEvents(
+        bytes32[] memory _params
+    ) public {
+        for (uint256 i = 0; i < _params.length; i++) {
+            emit RelayedMessage(_params[i]);
+        }
+    }
+
+    function triggerFailedRelayedMessageEvents(
+        bytes32[] memory _params
+    ) public {
+        for (uint256 i = 0; i < _params.length; i++) {
+            emit FailedRelayedMessage(_params[i]);
+        }
+    }
+}