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metamask-extension/test/e2e/helpers.js

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const path = require('path')
const createStaticServer = require('../../development/create-static-server')
const Ganache = require('./ganache')
const FixtureServer = require('./fixture-server')
const { buildWebDriver } = require('./webdriver')
const tinyDelayMs = 200
const regularDelayMs = tinyDelayMs * 2
const largeDelayMs = regularDelayMs * 2
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const dappPort = 8080
async function withFixtures (options, callback) {
const { dapp, fixtures, ganacheOptions, driverOptions, title } = options
const fixtureServer = new FixtureServer()
const ganacheServer = new Ganache()
let dappServer
let webDriver
try {
await ganacheServer.start(ganacheOptions)
await fixtureServer.start()
await fixtureServer.loadState(path.join(__dirname, 'fixtures', fixtures))
if (dapp) {
const dappDirectory = path.resolve(__dirname, '..', '..', 'node_modules', '@metamask', 'test-dapp', 'dist')
dappServer = createStaticServer(dappDirectory)
dappServer.listen(dappPort)
await new Promise((resolve, reject) => {
dappServer.on('listening', resolve)
dappServer.on('error', reject)
})
}
const { driver } = await buildWebDriver(driverOptions)
webDriver = driver
// eslint-disable-next-line callback-return
await callback({
driver,
})
if (process.env.SELENIUM_BROWSER === 'chrome') {
const errors = await driver.checkBrowserForConsoleErrors(driver)
if (errors.length) {
const errorReports = errors.map((err) => err.message)
const errorMessage = `Errors found in browser console:\n${errorReports.join('\n')}`
throw new Error(errorMessage)
}
}
} catch (error) {
if (webDriver) {
await webDriver.verboseReportOnFailure(title)
}
throw error
} finally {
await fixtureServer.stop()
await ganacheServer.quit()
if (webDriver) {
await webDriver.quit()
}
if (dappServer) {
await new Promise((resolve, reject) => {
dappServer.close((error) => {
if (error) {
return reject(error)
}
return resolve()
})
})
}
}
}
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module.exports = {
tinyDelayMs,
regularDelayMs,
largeDelayMs,
withFixtures,
}