@jeremyckahn/farmhand/src/game-logic/reducers/updateAchievements.test.ts

A farming game

import { ACHIEVEMENT_COMPLETED } from '../../templates.js'

vitest.mock('../../data/achievements.js', () => {
  return {
    default: [
      {
        id: 'test-achievement',
        name: 'Test Achievement',
        description: '',
        rewardDescription: '',
        condition: (state: farmhand.state & { conditionSatisfied?: boolean }) =>
          !state.conditionSatisfied,
        reward: (state: farmhand.state & { conditionSatisfied?: boolean }) => ({
          ...state,
          conditionSatisfied: true,
        }),
      },
    ],
  }
})

describe('updateAchievements', () => {
  let updateAchievements: any

  beforeAll(async () => {
    updateAchievements = (await vitest.importActual('./updateAchievements.js'))
      .updateAchievements
  })

  describe('achievement was not previously met', () => {
    describe('condition is not met', () => {
      test('does not update state', () => {
        const inputState = {
          completedAchievements: {},
          conditionSatisfied: true,
          todaysNotifications: [],
        }

        const state = updateAchievements(inputState)

        expect(state).toBe(inputState)
      })
    })

    describe('condition is met', () => {
      test('updates state', () => {
        const inputState = {
          completedAchievements: {},
          conditionSatisfied: false,
          todaysNotifications: [],
        }

        const state = updateAchievements(inputState)

        expect(state).toMatchObject({
          completedAchievements: { 'test-achievement': true },
          conditionSatisfied: true,
          todaysNotifications: [
            {
              message: ACHIEVEMENT_COMPLETED('', {
                name: 'Test Achievement',
                rewardDescription: '',
              }),
              severity: 'success',
            },
          ],
        })
      })
    })
  })

  describe('achievement was previously met', () => {
    describe('condition is not met', () => {
      test('does not update state', () => {
        const inputState = {
          completedAchievements: { 'test-achievement': true },
          conditionSatisfied: true,
          todaysNotifications: [],
        }

        const state = updateAchievements(inputState)

        expect(state).toBe(inputState)
      })
    })

    describe('condition is met', () => {
      test('does not update state', () => {
        const inputState = {
          completedAchievements: { 'test-achievement': true },
          conditionSatisfied: false,
          todaysNotifications: [],
        }

        const state = updateAchievements(inputState)

        expect(state).toBe(inputState)
      })
    })
  })
})