Updated FizzBuzz - Koan and TDD

Author: lynnlangit

src/org/teachingkidsprogramming/recipes/completed/FizzBuzz.java

@@ -0,0 +1,27 @@
+package org.teachingkidsprogramming.recipes.completed;
+
+public class FizzBuzz
+{
+  public static void main(String[] args)
+  {
+    StringBuilder sb = new StringBuilder();
+    //for the whole numbers from 1 to 100, print either that number, or, 
+    for (int i = 1; i <= 100; i++)
+    {
+      sb.append(convert(i));
+    }
+    System.out.print(sb);
+  }
+  public static String convert(int i)
+  {
+    //if that number is evenly divisible by either 3 or 5, then print the word 'FizzBuzz'
+    if (0 == i % 15) { return "\n FizzBuzz"; }
+    //if that number is evenly divisible by 5, then print the word 'Buzz', 
+    if (0 == i % 5) { return "\n Buzz"; }
+    //if that number is evenly divisible by 3, then print the word 'Fizz', 
+    if (0 == i % 3) { return "\n Fizz"; }
+    return "\n " + i;
+  }
+  //for more complete directions see this page
+  //https://www.penflip.com/lynnlangit/tkp-lesson-plans/blob/master/course09.txt
+}

src/org/teachingkidsprogramming/recipes/completed/FizzBuzzTDD.java

@@ -0,0 +1,21 @@
+package org.teachingkidsprogramming.recipes.completed;
+
+public class FizzBuzzTDD
+{
+  public static String convert(int i)
+  {
+    if (0 == i % 15) { return "FizzBuzz"; }
+    if (0 == i % 5) { return "Buzz"; }
+    if (0 == i % 3) { return "Fizz"; }
+    return "" + i;
+  }
+  //for the numbers being tested, print out either that number, or, 
+  //if that number is evenly divisible by 3, then print the word 'Fizz', 
+  //if that number is evenly divisible by 5, then print the word 'Buzz', 
+  //if that number is evenly divisible by either 3 or 5, then print the word 'FizzBuzz'
+  //
+  //write tests using the Assert object via the TDD style
+  //
+  //for more complete directions see this page
+  //https://www.penflip.com/lynnlangit/tkp-lesson-plans/blob/master/course09.txt
+}

src/org/teachingkidsprogramming/recipes/completed/FizzBuzzTDDTest.java

@@ -0,0 +1,51 @@
+package org.teachingkidsprogramming.recipes.completed;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+public class FizzBuzzTDDTest
+{
+  @Test
+  public void test1Returns1()
+  {
+    String result = FizzBuzzTDD.convert(1);
+    assertEquals("1", result);
+  }
+  @Test
+  public void test2Returns2()
+  {
+    String result = FizzBuzzTDD.convert(2);
+    assertEquals("2", result);
+  }
+  @Test
+  public void test3ReturnsFizz()
+  {
+    String result = FizzBuzzTDD.convert(3);
+    assertEquals("Fizz", result);
+  }
+  @Test
+  public void test5ReturnsBuzz()
+  {
+    String result = FizzBuzzTDD.convert(5);
+    assertEquals("Buzz", result);
+  }
+  @Test
+  public void test6ReturnsFizz()
+  {
+    String result = FizzBuzzTDD.convert(6);
+    assertEquals("Fizz", result);
+  }
+  @Test
+  public void test10ReturnsBuzz()
+  {
+    String result = FizzBuzzTDD.convert(10);
+    assertEquals("Buzz", result);
+  }
+  @Test
+  public void test15ReturnsFizzBuzz()
+  {
+    String result = FizzBuzzTDD.convert(15);
+    assertEquals("FizzBuzz", result);
+  }
+}

src/org/teachingkidsprogramming/section08tdd/FizzBuzz.java

@@ -0,0 +1,15 @@
+package org.teachingkidsprogramming.section08tdd;
+
+public class FizzBuzz
+{
+  //for the whole numbers from 1 to 100, print either that number, or, 
+  //if that number is evenly divisible by 3, then print the word 'Fizz', 
+  //if that number is evenly divisible by 5, then print the word 'Buzz', 
+  //if that number is evenly divisible by either 3 or 5, then print the word 'FizzBuzz'
+  //
+  //NOTE: this is a kata (higher level instructions)
+  //part of the exercise is to translate into line-by-line English, THEN Java
+  //
+  //for more complete directions see this page
+  //https://www.penflip.com/lynnlangit/tkp-lesson-plans/blob/master/course09.txt
+}

src/org/teachingkidsprogramming/section08tdd/FizzBuzzTDD.java

@@ -2,11 +2,13 @@
 
 public class FizzBuzzTDD
 {
-  //for the whole numbers from 1 to 100, print either that number, or, 
+  //for the numbers being tested, print out either that number, or, 
   //if that number is evenly divisible by 3, then print the word 'Fizz', 
   //if that number is evenly divisible by 5, then print the word 'Buzz', 
   //if that number is evenly divisible by either 3 or 5, then print the word 'FizzBuzz'
+  //
   //write tests using the Assert object via the TDD style
+  //
   //for more complete directions see this page
   //https://www.penflip.com/lynnlangit/tkp-lesson-plans/blob/master/course09.txt
 }