83 lines
2.7 KiB
JavaScript
83 lines
2.7 KiB
JavaScript
// ***********************************************
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// For more comprehensive examples of custom
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// commands please read more here:
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// https://on.cypress.io/custom-commands
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// ***********************************************
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import { JsonRpcProvider } from '@ethersproject/providers'
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import { Wallet } from '@ethersproject/wallet'
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import { _Eip1193Bridge } from '@ethersproject/experimental/lib/eip1193-bridge'
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// never send real ether to this, obviously
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const PRIVATE_KEY_TEST_NEVER_USE = '0xad20c82497421e9784f18460ad2fe84f73569068e98e270b3e63743268af5763'
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// address of the above key
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export const TEST_ADDRESS_NEVER_USE = '0x0fF2D1eFd7A57B7562b2bf27F3f37899dB27F4a5'
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export const TEST_ADDRESS_NEVER_USE_SHORTENED = '0x0fF2...F4a5'
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class CustomizedBridge extends _Eip1193Bridge {
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async sendAsync(...args) {
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console.debug('sendAsync called', ...args)
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return this.send(...args)
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}
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async send(...args) {
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console.debug('send called', ...args)
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const isCallbackForm = typeof args[0] === 'object' && typeof args[1] === 'function'
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let callback
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let method
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let params
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if (isCallbackForm) {
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callback = args[1]
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method = args[0].method
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params = args[0].params
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} else {
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method = args[0]
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params = args[1]
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}
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if (method === 'eth_requestAccounts' || method === 'eth_accounts') {
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if (isCallbackForm) {
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callback({ result: [TEST_ADDRESS_NEVER_USE] })
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} else {
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return Promise.resolve([TEST_ADDRESS_NEVER_USE])
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}
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}
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if (method === 'eth_chainId') {
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if (isCallbackForm) {
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callback(null, { result: '0x4' })
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} else {
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return Promise.resolve('0x4')
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}
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}
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try {
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const result = await super.send(method, params)
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console.debug('result received', method, params, result)
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if (isCallbackForm) {
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callback(null, { result })
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} else {
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return result
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}
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} catch (error) {
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if (isCallbackForm) {
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callback(error, null)
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} else {
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throw error
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}
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}
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}
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}
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// sets up the injected provider to be a mock ethereum provider with the given mnemonic/index
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Cypress.Commands.overwrite('visit', (original, url, options) => {
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return original(url.startsWith('/') && url.length > 2 && !url.startsWith('/#') ? `/#${url}` : url, {
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...options,
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onBeforeLoad(win) {
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options && options.onBeforeLoad && options.onBeforeLoad(win)
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win.localStorage.clear()
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const provider = new JsonRpcProvider('https://rinkeby.infura.io/v3/4bf032f2d38a4ed6bb975b80d6340847', 4)
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const signer = new Wallet(PRIVATE_KEY_TEST_NEVER_USE, provider)
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win.ethereum = new CustomizedBridge(signer, provider)
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}
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})
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})
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