@web3-testing/mock-provider

A partially stubbed MockProvider class for unit testing web3 EIP-1193 compatible providers, wallets and dapps.

Installation

yarn add -D @web3-testing/mock-provider

# or

npm install --save-dev @web3-testing/mock-provider

Usage

import { MockProvider } from '@web3-testing/mock-provider';

describe('MockProvider', () => {
  let provider: MockProvider;

  beforeEach(() => {
    provider = new MockProvider();
  });

  it('should emit a connect event at will', async () => {
    provider = new MockProvider();

    provider.on('connect', () => {
      expect(true).toBe(true);
    });

    provider.emitConnect();
  });
});

import { MockProvider } from '@web3-testing/mock-provider';
import { Connector } from 'wagmi';

describe('Connector', () => {
  let connector: CreateConnectorFn;

  beforeEach(() => {
    connector = {
      // ...
      getProvider: () => mockProvider,
      // ...
    };
  });

  it('should connect to the provider', async () => {
    let wagmiConfig = createConfig({
      multiInjectedProviderDiscovery: false,
      ssr: false,
      chains: [sepolia],
      connectors: [connector],
      transports: {
        [sepolia.id]: http(),
      },
    });

    provider.emitConnect();

    expect(wagmiConfig.state.status).toBe('connected');
  });
});

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Support

If you like this project, please consider donating to the following address: Thank you!

| Address | Network | | -------------------------------------------- | -------------------------------------------- | | 0x63a01150A843a4468BEcf8C7590b3eC757a62945 | Ethereum / Arbitrum / Polygon / Optimism etc |

Unit Tests

yarn test

Authors

• Robin Duckett

License

MIT