Synchronous testing functions

[jasonkuhrt]

What

• Testing module is currently async, for example:

  // tests/user.test.ts
  
  import { createTestContext } from './__helpers'
  
  const ctx = createTestContext()
  
  it('makes sure a user was registered', async () => {
    const result = await ctx.app.query(`
      mutation {
        signupUser(data: { email: "person@email.com", password: "123456" })
      } {
        id
        email
        password
      }
    `)
  
    const createdUsers = await ctx.app.query(`{ users { id } }`)
    expect(createdUsers).toMatchSnapshot()
  })

• But in a testing context synchronous is usually easier to work with:

  // tests/user.test.ts
  
  import { createTestContext } from './__helpers'
  
  const ctx = createTestContext()
  
  it('makes sure a user was registered', () => {
    const result = ctx.app.query(`
      mutation {
        signupUser(data: { email: "person@email.com", password: "123456" })
      } {
        id
        email
        password
      }
    `)
  
    expect(ctx.app.query(`{ users { id } }`)).toMatchSnapshot()
  })

• We could drop async API or make it opt-in, e.g.:

   createTestContext({ async: true }) // makes functions on ctx be async

  or async function prop on sync functions:

   ctx.app.query() // Result
   ctx.app.query.async() // Promise<Result>