메서드 추출 리팩토링

Author: gunkim

number-baseball/src/main/java/io/github/gunkim/baseball/domain/BallNumbers.java

@@ -19,7 +19,7 @@ public Result match(final BallNumbers otherBalls) {
             final BallNumber myBall = this.ballNumbers.get(i);
             final BallNumber otherBall = otherBalls.ballNumbers.get(i);
 
-            if (myBall.equals(otherBall)) {
+            if (isSameBallNumber(myBall, otherBall)) {
                 strike++;
             } else if (hasBallNumber(otherBall)) {
                 ball++;
@@ -29,6 +29,10 @@ public Result match(final BallNumbers otherBalls) {
         return new Result(strike, ball);
     }
 
+    private boolean isSameBallNumber(BallNumber myBall, BallNumber otherBall) {
+        return myBall.equals(otherBall);
+    }
+
     private boolean hasBallNumber(final BallNumber ballNumber) {
         return this.ballNumbers.contains(ballNumber);
     }