I am testing some deployment features of my contracts, and I would like to reset the local hardhat network to initial state between some of the tests, in particular, to clear out all previously deployed contracts from the test net. (I am not using an independent note -- ust the one that gets created when you type hh test.)
Is there a way to do this inside a test suite, rather than having to rerun it all together?
Use hardhat_reset in a beforeEach hook:
describe("suite", function () {
beforeEach(async function () {
await hre.network.provider.send("hardhat_reset")
})
it("first test", function () {
// Fresh instance of the hardhat network
// Send txs
})
it("second test", function () {
// Fresh instance of the network again
// The txs sent in the previous test won't
// be reflected here.
})
})
const hre = require("hardhat");. Ofc there should be hardhat installed as devDependencies. Source: hardhat.org/guides/scripts.html
Commented
Jan 26, 2022 at 8:08
Yes to do this you should search for Mocha test and Chai to see how it's made.
Basicaly
Mytest(){
beforeEach() =>{
// deploy a new instanse
}
it() =>{
// run a test on this deployment instance.
}
}
// here your previous deployment don't exist anymore
// it will not reset you eth balance.
Here is an example of what these test looks like and you can take as example to start testing.
https://github.com/MadeInDreams-Team/idecentralize/blob/master/test/Token.test.js
I doub't that the process that runs inside the HRE can trigger the resset of the node. Never seen it done.
If your looking to automate a series of test. The best place to do it would be within task.
task( "My task", ... =>{
// run test one script
// reset node
// run test 2 script
}
