fail: test CI

app/game/cell.spec.js

@@ -0,0 +1,88 @@
+import { describe, beforeEach, test, expect } from '@jest/globals'
+import Cell from './cell'
+import Rules from './rules'
+
+describe('Cell', () => {
+  let rules
+  beforeEach(() => {
+    rules = new Rules()
+  })
+  describe('new ()', () => {
+    test('should initialize a Cell', () => {
+      var cell = new Cell(rules)
+      expect(cell).toEqual({
+        rules,
+        state: 0,
+        age: 0,
+        sprite: { alpha: 0 },
+        count: 0
+      })
+    })
+  })
+  describe('get isLiving ()', () => {
+    test('should return {state === 1}', () => {
+      const cell = new Cell(rules)
+      expect(cell.isLiving).toBeFalsy()
+      cell.state = 0
+      expect(cell.isLiving).toBeTruthy()
+    })
+  })
+  describe('update ()', () => {
+    test('should keep a cell state', () => {
+      var cell = new Cell(rules)
+      cell.update()
+      expect(cell).toEqual({
+        state: 0,
+        age: 0,
+        sprite: { alpha: 0 },
+        count: 0,
+        rules
+      })
+    })
+    test('should reborn a cell', () => {
+      var cell = new Cell(rules)
+      cell.sprite = {}
+      rules.b[0] = true
+      cell.update()
+      expect(cell).toEqual({
+        state: 1,
+        age: 0,
+        sprite: { alpha: 0.5 },
+        count: 0,
+        rules
+      })
+    })
+    test('should increment a living cell age', () => {
+      var cell = new Cell(rules)
+      cell.sprite = {}
+      cell.state = 1
+      rules.s[0] = true
+      cell.update()
+      expect(cell.age).toEqual(1)
+    })
+    test('should keep a dead cell age', () => {
+      var cell = new Cell(rules)
+      cell.sprite = {}
+      cell.update()
+      expect(cell.age).toEqual(0)
+    })
+    test('should update the opacity at age == 5', () => {
+      var cell = new Cell(rules)
+      cell.state = 1
+      cell.sprite = {}
+      cell.age = 4
+      rules.s[0] = true
+      cell.update()
+      expect(cell.sprite.alpha).toEqual(1)
+    })
+    test('should kill a cell', () => {
+      var cell = new Cell(rules)
+      cell.state = 1
+      cell.sprite = {}
+      var dead = new Cell(rules)
+      dead.sprite = { alpha: 0 }
+      cell.update()
+      expect(cell).toEqual(dead)
+    })
+  })
+})