unfinished- able to add bonus points for strike and spare

frame.js

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+class Frame {
+  constructor(roll1, roll2) { 
+    if (roll1 > 10 || roll1 + roll2 > 10) {
+      throw new Error("invalid points");
+    }
+
+    this.roll1 = roll1;
+    this.roll2 = roll2;
+  }
+
+  getRoll1() {
+    return this.roll1;
+  }
+
+  basePoints() {
+    return this.roll1 + this.roll2;
+  }
+
+  bonusPoints(nextFrame) {
+    let points = 0;
+
+    if (this.roll1 === 10) {
+      points += nextFrame.basePoints();
+    } else if (this.roll1 + this.roll2 === 10) {
+      points += nextFrame.getRoll1();
+    }
+
+    return points;
+  }
+
+}
+
+// try {
+//   const frame1 = new Frame(8, 2); // This will work
+//   const frame2 = new Frame(10, 1); // This will throw an error
+// } catch (error) {
+//   console.error(error.message); // Output: "Invalid points"
+// }
+
+
+module.exports = Frame;

integration.test.js

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+const Scorecard = require('./scorecard');
+const Frame = require('./frame');
+
+describe('integration', () => {
+  let scorecard;
+  beforeEach(() => { scorecard = new Scorecard() })
+
+  it('returns zero points when player never hits a pin in all 10 frames', () => {
+    for (let i = 0; i < 10; i++) {
+      frame = new Frame(0, 0);
+      scorecard.addFrame(frame);
+    }
+    expect(scorecard.calculateScore()).toEqual(0);  
+  })
+
+  it('returns 22 when 1st frame is a spare and next frame has 5 and 2 points', () => {
+    frame1 = new Frame(6, 4);
+    frame2 = new Frame(5, 2);
+
+    scorecard.addFrame(frame1);
+    scorecard.addFrame(frame2);
+
+    expect(scorecard.calculateScore()).toEqual(22);  
+  })
+
+  it('returns 28 when 1st frame is a strike and next frame has 5 and 2 points', () => {
+    frame1 = new Frame(10, 0);
+    frame2 = new Frame(5, 4);
+
+    scorecard.addFrame(frame1);
+    scorecard.addFrame(frame2);
+
+    expect(scorecard.calculateScore()).toEqual(28);  
+  })
+
+
+})
+
+