How to use relay-test-utils - 9 common examples

import React from 'react'
import { GraphQLTaggedNode, Variables } from 'relay-runtime'
import { QueryRenderer } from 'react-relay'
import hoistStatics from 'hoist-non-react-statics'
import { createMockEnvironment } from 'relay-test-utils'

import { Environment } from '.'

interface Config {
  query?: GraphQLTaggedNode
  queriesParams?: (props: Object) => Object
  variables?: Variables
  hideSplash?: boolean
}

export const env = createMockEnvironment()

export default function createQueryRenderer(
  FragmentComponent: React.ComponentType,
  Component: React.ComponentType,
  config: Config,
  LoadingComponent?: React.ComponentType
) {
  const { query, queriesParams } = config

  function QueryRendererWrapper(props: Object) {
    const variables = (queriesParams ? queriesParams(props) : config.variables) as Variables

    return (

Environment.mock.resolveMostRecentOperation((operation) =>
    MockPayloadGenerator.generate(operation),
    );

  env.mock.resolveMostRecentOperation(operation => MockPayloadGenerator.generate(operation))

    env.mock.resolveMostRecentOperation(op => MockPayloadGenerator.generate(op))

environment.mock.resolveMostRecentOperation(operation => {
      return MockPayloadGenerator.generate(operation)
    })
    expect(renderer.toJSON()).toMatchSnapshot()

  env.mock.resolveMostRecentOperation(operation => MockPayloadGenerator.generate(operation))

jest.mock("lib/relay/createEnvironment", () => ({
  defaultEnvironment: require("relay-test-utils").createMockEnvironment(),
}))

jest.mock("lib/relay/createEnvironment", () => ({
  defaultEnvironment: require("relay-test-utils").createMockEnvironment(),
}))

beforeEach(() => {
    environment = createMockEnvironment()
    ;(useTracking as jest.Mock).mockImplementation(() => {
      return {
        trackEvent,
      }
    })
  })