Ahora le toca al BDD. Me he visto y he practicado con este vídeo. La verdad es que ahora entiendo un poco más lo que es, pero todavía me falta bastante por aprender.
Es importante tener instalado el SpecFlow , junto con el visual studio (en mi caso fue el monodevelop) en el sistema (en caso fue xubuntu 12.04), para poder hacerlo.Dejo el código resultante.
Primeramente la características (feature), el escanario que vas a testear.
Feature: Scoring In order to keep track of my score As a bowler I want to use automatic scoring system for some feedback Scenario: Bowling a strike Given I am on the first frame When I bowl a strike Then I see a "X" and a message that says "Good Job!" And I Should hear "Green Day" Scenario: Bowling a gutter ball as a first throw Given I am on the first frame When I bowl a gutter ball Then I should see an "0" and a message that says "You need lessons" Scenario: Bowling a gutter balls in a frame Given I hace bowled a gutter ball already When I bowl another gutter ball Then I should see an "0" and a message that says "You need lessons" Scenario: Finishing the game with nothing but gutter balls Given I bowled a gutter ball on every frame Then I should see an "0" and a message that says "you need lessons" And I Should hear "Sad Trombone"Código que testea
using System;
using NUnit.Framework;
using TechTalk.SpecFlow;
using SuperBowlingScorer;
namespace Spec
{
[Binding]
public class ScoringSteps
{
SuperScorer _scorer;
[Given(@"I am on the first frame")]
public void GivenIamOnTheFirstFrame ()
{
_scorer = new SuperScorer ();
Assert.AreEqual (1, _scorer.Frame);
}
[When(@"I bowl a strike")]
public void WhenIBowlAStrike ()
{
_scorer.ScoreFirstBall (10);
}
[Given(@"I have bowled a gutter ball already")]
public void WhenIHaveBowledAGutterBallAlready ()
{
_scorer = new SuperScorer ();
_scorer.ScoreFirstBall (0);
}
[Then(@"I see a ""(.*)"" and a message that says ""(.*)""")]
public void ThenISeeAXAndAMessageThatSaysGobJob (string score, string message)
{
Assert.AreEqual (message, _scorer.BowlerMessage);
Assert.AreEqual (score, _scorer.Score);
}
[Then(@"I should hear ""(.*)""")]
public void ThenIShouldHearGreenDay (string song)
{
Assert.AreEqual (song, _scorer.SongToPlay);
}
[When(@"I bowl a gutter ball")]
public void WhenIBowlAGutterBall ()
{
_scorer.ScoreFirstBall (0);
}
[When(@"I bowl another gutter ball")]
public void WhenIBowlAnotherGutterBall ()
{
ScenarioContext.Current.Pending ();
}
[Given(@"I bowled a gutter ball on every frame")]
public void GivenIBowledAGutterBallOnEveryFrame ()
{
_scorer = new SuperScorer ();
for (int i = 1; i < 10; i++) {
_scorer.ScoreFirstBall (0);
_scorer.ScoreSecondBall (0);
}
}
}
}
Código que implementa las funcionalidad a testear (S.U.T.)
using System;
namespace SuperBowlingScorer
{
public class SuperScorer
{
public int Frame {
get;
set;
}
public string BowlerMessage {
get;
set;
}
public string Score {
get;
set;
}
public string SongToPlay {
get;
set;
}
public int PinsTotal {
get;
set;
}
public int FirstBallScore {
get;
set;
}
public SuperScorer ()
{
Frame = 1;
}
public void ScoreSecondBall (int pinsKnockedDown)
{
PinsTotal += pinsKnockedDown;
if (Frame < 10) {
Frame ++;
}
if (IsGutterBall (pinsKnockedDown) && (FirstBallScore == 0)) {
BowlerMessage = "You need lessons";
Score = "0";
}
if ((Frame == 10)
&& (PinsTotal == 0)) {
BowlerMessage = "You need the gutter bumpers";
Score = "0";
SongToPlay = "Sad Trombone";
}
}
public bool IsGutterBall (int pinsKnockDown)
{
return pinsKnockDown == 0;
}
public bool IsStrike (bool isFirstBall, int pinsKnockedDown)
{
return isFirstBall && (pinsKnockedDown == 10);
}
public void ScoreFirstBall (int pinsKnockDown)
{
if (IsStrike (true, pinsKnockDown)) {
BowlerMessage = "Good Job!";
Score = "X";
SongToPlay = "Green Day";
} else if (IsGutterBall (pinsKnockDown)) {
BowlerMessage = "You'll better next time";
Score = "0";
}
FirstBallScore = pinsKnockDown;
PinsTotal += pinsKnockDown;
}
}
}
Creo que puede ayudar mucho a testear las aplicaciones y dar más calidad a los productos. Tengo que seguir investigando ...
