@jeremyckahn/farmhand/src/components/Farmhand/FarmhandService.test.ts

A farming game

import { sprinkler, appleSapling } from '../../data/items.js'
import { carrotSeed } from '../../data/crops/carrot.js'

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

vitest.mock('../../data/maps.js')
vitest.mock('../../data/items.js')

describe('FarmhandService', () => {
  describe('computePlayerInventory', () => {
    const inventory = [{ quantity: 1, id: 'carrot-seed' }]

    test('computes inventory with no value adjustments', () => {
      const playerInventory = FarmhandService.computePlayerInventory(
        inventory,
        {}
      )

      expect(playerInventory).toEqual([{ quantity: 1, ...carrotSeed }])
    })

    test('computes inventory with value adjustments', () => {
      const playerInventory = FarmhandService.computePlayerInventory(
        inventory,
        {
          'carrot-seed': 2,
        }
      )

      expect(playerInventory).toEqual([
        { ...carrotSeed, quantity: 1, value: 30 },
      ])
    })
  })

  describe('getFieldToolInventory', () => {
    test('selects field tools from inventory', () => {
      const fieldToolInventory = FarmhandService.getFieldToolInventory([
        { ...sprinkler, quantity: 1 },
        { ...carrotSeed, quantity: 1 },
      ])

      expect(fieldToolInventory).toEqual([{ ...sprinkler, quantity: 1 }])
    })
  })

  describe('getPlantableCropInventory', () => {
    test('selects plantable crop items from inventory', () => {
      const inventory = [
        { id: 'carrot-seed', quantity: 1 },
        { id: 'weed', quantity: 1 },
      ]
      const plantableCropInventory = FarmhandService.getPlantableCropInventory(
        inventory
      )

      expect(plantableCropInventory).toEqual([{ ...carrotSeed, quantity: 1 }])
    })
  })

  describe('getPlantableTreeInventory', () => {
    test('selects plantable tree items from inventory', () => {
      const inventory = [
        { id: 'apple-sapling', quantity: 1 },
        { id: 'weed', quantity: 1 },
      ]
      const plantableTreeInventory = FarmhandService.getPlantableTreeInventory(
        inventory
      )

      expect(plantableTreeInventory).toEqual([{ ...appleSapling, quantity: 1 }])
    })

    test('ignores inventory entries with no corresponding item', () => {
      const inventory = [
        { id: 'apple-sapling', quantity: 1 },
        { id: 'not-a-real-item-id', quantity: 1 },
      ]
      const plantableTreeInventory = FarmhandService.getPlantableTreeInventory(
        inventory
      )

      expect(plantableTreeInventory).toEqual([{ ...appleSapling, quantity: 1 }])
    })
  })
})