Testcafe browser provider for decentraland/dappmeteer. E2E testing with Puppeteer and Metamask chrome extenstion, using Testcafé.
This is the dappmeteer chromium browser provider, with Metamask extension, for TestCafe.
npm install --save-dev testcafe-browser-provider-dappmeteer
When you run tests from the command line, use the provider name when specifying browsers:
For how to interact with the dappmeteer Metamask, check the Dappmeteer readme.
testcafe dappmeteer 'path/to/test/file.js'
When you use API, pass the provider name to the browsers() method:
testCafe
.createRunner()
.src('path/to/test/file.js')
.browsers('dappmeteer')
.run();For a deep understand about the API of the mestamask instance check check the Dappeteer docs.
You need to pass the testcafe instance as argument to the getMetamask function from this testcafe provider, and it will return a promise, once resolved you will have an object that allows you to interact with Metamask.
Example with localhost/private Ethereum blockchain and Testcafe:
import { Selector } from 'testcafe';
import { getMetamask } from 'testcafe-browser-provider-dappeteer';
const default_mmemo = 'stumble story behind hurt patient ball whisper art swift tongue ice alien';
fixture `Sign up page`
.page `http://localhost:3000`
.beforeEach(async t => {
const metamask = await getMetamask(t);
try {
await metamask.lock() // If user is not created, it will throw here, creating a new imported seed account
console.log("Unlocking account...")
await metamask.unlock();
} catch (_error) {
console.log("Creating an account...")
// Import default mmemonic
await metamask.importAccount(default_mmemo);
}
// Change network to private blockchain
await metamask.switchNetwork('localhost 8545');
});
test('Mint test tokens', async t => {
const metamask = await getMetamaskInstance(t);
const mintButton = await Selector('#mint');
// Click to mint tokens
await mintButton.click();
// Click to confirm transaction at Metamask
await metamask.confirmTransaction();
});