@jeremyckahn/farmhand/src/game-logic/reducers/updateLearnedRecipes.test.js

A farming game

import { testState } from '../../test-utils/index.js'

import { updateLearnedRecipes } from './updateLearnedRecipes.js'

describe('updateLearnedRecipes', () => {
  describe('recipe condition is not met', () => {
    test('recipe is not in the returned map', () => {
      const { learnedRecipes } = updateLearnedRecipes(
        testState({
          itemsSold: {},
        })
      )

      expect(learnedRecipes['carrot-soup']).toBe(undefined)
    })
  })

  describe('recipe condition is met', () => {
    test('recipe is in the returned map', () => {
      const { learnedRecipes } = updateLearnedRecipes(
        testState({
          itemsSold: { carrot: Number.MAX_SAFE_INTEGER },
        })
      )

      expect(learnedRecipes['carrot-soup']).toEqual(true)
    })
  })
})