pingPongGame.js
class PingPongGame { constructor(winningPoints) { this.playerOneScore = 0; this.playerTwoScore = 0; this.winningPoints = winningPoints; } get playerOneScore() { return this.playerOneScore; } set playerOneScore(newPlayerOneScore) { this.playerOneScore = newPlayerOneScore; } get playerTwoScore() { return this.playerTwoScore; } set playerTwoScore(newPlayerTwoScore) { this.playerTwoScore = newPlayerTwoScore; } get winningPoints() { return this.winningPoints; } set winningPoints(newWinningPoints) { this.winningPoints = newWinningPoints; } }pingPongGame.spec.js
describe("when the pingPongGame constructor is called", function () { it("should create a ping pong game with given arguments.", function () { let newPingPongGame = new PingPongGame(10); expect(newPingPongGame.getWinningPoints).toBe(10); }); });Cuando ejecuto la prueba Jasmine anterior, aparece el siguiente error. Creo que podría necesitar burlarme de algo, ya que parece que hay algún tipo de recursión. ¿Alguien tiene sugerencias sobre cómo probar correctamente el constructor?
when the pingPongGame constructor is called > should create a ping pong game with given arguments. RangeError: Maximum call stack size exceeded RangeError: Maximum call stack size exceeded at PingPongGame.set playerOneScore [as playerOneScore] (file:///C:/Users/charl/Documents/WebDev/PingPongScorekeeper/src/pingPongGame.js:13:29) at PingPongGame.set playerOneScore [as playerOneScore] (file:///C:/Users/charl/Documents/WebDev/PingPongScorekeeper/src/pingPongGame.js:13:29) at PingPongGame.set playerOneScore [as playerOneScore] (file:///C:/Users/charl/Documents/WebDev/PingPongScorekeeper/src/pingPongGame.js:13:29) at PingPongGame.set playerOneScore [as playerOneScore] (file:///C:/Users/charl/Documents/WebDev/PingPongScorekeeper/src/pingPongGame.js:13:29) at PingPongGame.set playerOneScore [as playerOneScore] (file:///C:/Users/charl/Documents/WebDev/PingPongScorekeeper/src/pingPongGame.js:13:29) at PingPongGame.set playerOneScore [as playerOneScore] (file:///C:/Users/charl/Documents/WebDev/PingPongScorekeeper/src/pingPongGame.js:13:29) at PingPongGame.set playerOneScore [as playerOneScore] (file:///C:/Users/charl/Documents/WebDev/PingPongScorekeeper/src/pingPongGame.js:13:29) at PingPongGame.set playerOneScore [as playerOneScore] (file:///C:/Users/charl/Documents/WebDev/PingPongScorekeeper/src/pingPongGame.js:13:29) at PingPongGame.set playerOneScore [as playerOneScore] (file:///C:/Users/charl/Documents/WebDev/PingPongScorekeeper/src/pingPongGame.js:13:29) at PingPongGame.set playerOneScore [as playerOneScore] (file:///C:/Users/charl/Documents/WebDev/PingPongScorekeeper/src/pingPongGame.js:13:29)Está viendo un desbordamiento de pila porque los nombres de las propiedades de la instancia y los captadores/establecedores son idénticos. Debe usar un nombre diferente para sus propiedades internas para usar este enfoque. La convención generalmente es prefijar el nombre con un _ así...
class PingPongGame { constructor(winningPoints) { //... this._winningPoints = winningPoints; } //... get winningPoints() { return this._winningPoints } set winningPoints(winningPoints) { this._winningPoints = winningPoints } }