test: newFilter

Author: gaudren

client/src/tests.ts

@@ -25,6 +25,7 @@ export async function run(
     await import("./tests/eth/blockNumber");
     await import("./tests/eth/getBalance");
     await import("./tests/eth/getTransactionByHash");
+    await import("./tests/eth/newFilter");
 
     mocha.run();
 }

client/src/tests/eth/newFilter.sol

@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: MIT
+
+pragma solidity ^0.8.19;
+
+contract Emit {
+    event Log(uint256 indexed arg0);
+
+    function logSomething(uint256 arg0) external {
+        emit Log(arg0);
+    }
+}

client/src/tests/eth/newFilter.ts

@@ -0,0 +1,39 @@
+import { blockchain, wallet } from "../../tests";
+import newFilter from "./newFilter.sol";
+import assert from "assert";
+import { ethers } from "ethers";
+
+describe("newFilter", () => {
+    let contract: ethers.Contract;
+
+    before(async () => {
+        if (!blockchain || !wallet) {
+            throw "not ready";
+        }
+        const deployer = (await blockchain.listAccounts())[0];
+        const factory = ethers.ContractFactory.fromSolidity(
+            newFilter.Emit,
+            deployer
+        );
+
+        contract = await factory.deploy();
+        await blockchain.send("evm_mine", [{ blocks: 1 }]);
+        await contract.deploymentTransaction()?.wait(1);
+    });
+
+    it("returns events matching filter", async () => {
+        if (!blockchain || !wallet) {
+            throw "not ready";
+        }
+        const eventPromise = new Promise((resolve) =>
+            contract.once("Log", (args) => {
+                resolve(args);
+            })
+        );
+        const call = await contract.logSomething(1234n);
+        await blockchain.send("evm_mine", [{ blocks: 1 }]);
+        await call.wait(1);
+        const actual = await eventPromise;
+        assert.equal(actual, 1234n);
+    });
+});