pull request

bowling/.gitignore

@@ -0,0 +1 @@
+node_modules/

bowling/bowling.js

@@ -0,0 +1,33 @@
+class Scorecard {
+  constructor() {
+    this.scorecard = [];
+  }
+
+  addFrame(...frames) {
+    if (this.scorecard.length < 10) {
+      this.scorecard.push([...frames]);
+    } else {
+      return 'This game has been completed already.';
+    }
+  }
+
+  calculateScore() {
+    let total = 0; 
+    let counter = 1; 
+    this.scorecard.forEach((frame) => {
+      let roll = frame.reduce((a, b) => {
+        return a + b;
+      });
+      if (roll >= 10 && counter < 10  && counter != this.scorecard.length) {
+        total += roll ;
+        total += this.scorecard[counter][0];
+      } else {
+        total += roll;
+      } 
+      counter += 1
+    });
+    return total;
+  }
+}
+
+module.exports = Scorecard;

bowling/bowling.test.js

@@ -0,0 +1,63 @@
+const { test } = require('node:test');
+const Scorecard = require('./bowling');
+
+describe('scorecard methods', () => {
+  it('returns a score of 0 at start of game ', () => {
+    player1 = new Scorecard;
+    expect(player1.calculateScore()).toBe(0);
+  });
+  it('returns a score of 9 after 1 frame', () => {
+    player1 = new Scorecard;
+    player1.addFrame(5, 4)
+    expect(player1.calculateScore()).toBe(9);
+  });
+  it('adds the first roll of the next frame if current frame is 10+', () => {
+    player1 = new Scorecard;
+    player1.addFrame(5, 5)
+    player1.addFrame(4, 5)
+    expect(player1.calculateScore()).toBe(23);
+  });
+  it('Does not allow user to add 10+ frames ', () => {
+    player1 = new Scorecard;
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10, 10)
+    expect(player1.addFrame(10, 10, 10)).toBe('This game has been completed already.');
+  });
+  it('is able to count a Perfect Game ', () => {
+    player1 = new Scorecard;
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10)
+    player1.addFrame(10, 10, 10)
+    expect(player1.calculateScore()).toBe(300);
+  });
+  it('is able to count a Gutter Game ', () => {
+    player1 = new Scorecard;
+    player1.addFrame(0, 0)
+    player1.addFrame(0, 0)
+    player1.addFrame(0, 0)
+    player1.addFrame(0, 0)
+    player1.addFrame(0, 0)
+    player1.addFrame(0, 0)
+    player1.addFrame(0, 0)
+    player1.addFrame(0, 0)
+    player1.addFrame(0, 0)
+    player1.addFrame(0, 0)
+    expect(player1.calculateScore()).toBe(0);
+  });
+
+});