37 lines
1.0 KiB
TypeScript
37 lines
1.0 KiB
TypeScript
import { expect } from "chai";
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import { network } from "hardhat";
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const { ethers } = await network.create();
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describe("Counter", function () {
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it("Should emit the Increment event when calling the inc() function", async function () {
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const counter = await ethers.deployContract("Counter");
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await expect(counter.inc()).to.emit(counter, "Increment").withArgs(1n);
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});
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it("The sum of the Increment events should match the current value", async function () {
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const counter = await ethers.deployContract("Counter");
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const deploymentBlockNumber = await ethers.provider.getBlockNumber();
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// run a series of increments
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for (let i = 1; i <= 10; i++) {
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await counter.incBy(i);
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}
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const events = await counter.queryFilter(
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counter.filters.Increment(),
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deploymentBlockNumber,
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"latest",
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);
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// check that the aggregated events match the current value
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let total = 0n;
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for (const event of events) {
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total += event.args.by;
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}
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expect(await counter.x()).to.equal(total);
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});
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});
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