92 lines
3 KiB
JavaScript
92 lines
3 KiB
JavaScript
import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest'
|
|
import Minesweeper from '../lib/mnswpr.js'
|
|
|
|
// Build a fresh board mounted on #app and return its grid <table>.
|
|
function mountGame() {
|
|
document.body.innerHTML = '<div id="app"></div>'
|
|
const game = new Minesweeper('app', 'dev')
|
|
game.initialize()
|
|
return document.getElementById('grid')
|
|
}
|
|
|
|
function leftClick(cell) {
|
|
cell.dispatchEvent(new MouseEvent('mousedown', { button: 0, bubbles: true }))
|
|
cell.dispatchEvent(new MouseEvent('mouseup', { button: 0, bubbles: true }))
|
|
}
|
|
|
|
function rightClick(cell) {
|
|
cell.dispatchEvent(new MouseEvent('mousedown', { button: 2, bubbles: true }))
|
|
}
|
|
|
|
function everyCell(grid, fn) {
|
|
for (let i = 0; i < grid.rows.length; i++) {
|
|
for (let j = 0; j < grid.rows[i].cells.length; j++) {
|
|
fn(grid.rows[i].cells[j])
|
|
}
|
|
}
|
|
}
|
|
|
|
describe('Minesweeper board', () => {
|
|
beforeEach(() => {
|
|
localStorage.clear()
|
|
// Fake timers stop the 1ms game clock interval from running during tests.
|
|
vi.useFakeTimers()
|
|
})
|
|
|
|
afterEach(() => {
|
|
vi.useRealTimers()
|
|
})
|
|
|
|
it('renders the beginner grid (9x9) by default', () => {
|
|
const grid = mountGame()
|
|
expect(grid.rows.length).toBe(9)
|
|
everyCell(grid, cell => expect(cell.parentNode.cells.length).toBe(9))
|
|
})
|
|
|
|
it('starts inactive with every cell in the default state', () => {
|
|
const grid = mountGame()
|
|
expect(grid.getAttribute('game-status')).toBe('inactive')
|
|
everyCell(grid, cell => expect(cell.getAttribute('data-status')).toBe('default'))
|
|
})
|
|
|
|
it('activates the game and reveals the cell on the first click', () => {
|
|
const grid = mountGame()
|
|
const cell = grid.rows[0].cells[0]
|
|
leftClick(cell)
|
|
expect(grid.getAttribute('game-status')).not.toBe('inactive')
|
|
expect(cell.getAttribute('data-status')).not.toBe('default')
|
|
})
|
|
|
|
it('never loses on the first click, across many random boards', () => {
|
|
// Exercises mine placement + first-click mine transfer (the Set-backed logic).
|
|
for (let i = 0; i < 30; i++) {
|
|
const grid = mountGame()
|
|
leftClick(grid.rows[0].cells[0])
|
|
expect(grid.getAttribute('game-status')).not.toBe('over')
|
|
}
|
|
})
|
|
|
|
it('flags and unflags a cell on right click', () => {
|
|
const grid = mountGame()
|
|
const cell = grid.rows[0].cells[0]
|
|
|
|
rightClick(cell)
|
|
expect(cell.getAttribute('data-status')).toBe('flagged')
|
|
expect(cell.className).toBe('flag')
|
|
|
|
rightClick(cell)
|
|
expect(cell.getAttribute('data-status')).toBe('default')
|
|
})
|
|
|
|
it('resets the board back to the inactive state', () => {
|
|
const grid = mountGame()
|
|
leftClick(grid.rows[0].cells[0])
|
|
expect(grid.getAttribute('game-status')).not.toBe('inactive')
|
|
|
|
const resetButton = document.querySelector('#game-board button')
|
|
resetButton.dispatchEvent(new MouseEvent('mousedown', { button: 0, bubbles: true }))
|
|
|
|
expect(grid.getAttribute('game-status')).toBe('inactive')
|
|
everyCell(grid, cell => expect(cell.getAttribute('data-status')).toBe('default'))
|
|
})
|
|
})
|