Finished fizzBuzz lab

src/main/java/FizzBuzz.java

@@ -1,2 +1,23 @@
 public class FizzBuzz {
+
+    public static String of(int testNumber) {
+
+        String result = "";
+
+        if(testNumber % 3 == 0)
+        {
+            result += "Fizz";
+        }
+
+        if(testNumber % 5 == 0){
+            result += "Buzz";
+        }
+
+        if(!(testNumber % 5 == 0) && !(testNumber % 3 == 0))
+        {
+            result = String.valueOf(testNumber);
+        }
+
+        return result;
+    }
 }

src/test/java/FizzBuzzTest.java

@@ -1,2 +1,95 @@
+import org.junit.Assert;
+import org.junit.Test;
+
 public class FizzBuzzTest {
+
+    @Test
+    public void test01()
+    {
+        //GIVEN
+        String expected = "Fizz";
+        String actual = "";
+        int testNumber = 3;
+
+        //WEHN
+        actual = FizzBuzz.of(testNumber);
+
+        //RESULT
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void test02()
+    {
+        //GIVEN
+        String expected = "4";
+        String actual = "";
+        int testNumber = 4;
+
+        //WEHN
+        actual = FizzBuzz.of(testNumber);
+
+        //RESULT
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void test03()
+    {
+        //GIVEN
+        String expected = "Buzz";
+        String actual = "";
+        int testNumber = 5;
+
+        //WEHN
+        actual = FizzBuzz.of(testNumber);
+
+        //RESULT
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void test04()
+    {
+        //GIVEN
+        String expected = "4";
+        String actual = "";
+        int testNumber = 4;
+
+        //WEHN
+        actual = FizzBuzz.of(testNumber);
+
+        //RESULT
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void test05()
+    {
+        //GIVEN
+        String expected = "FizzBuzz";
+        String actual = "";
+        int testNumber = 15;
+
+        //WEHN
+        actual = FizzBuzz.of(testNumber);
+
+        //RESULT
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void test06()
+    {
+        //GIVEN
+        String expected = "4";
+        String actual = "";
+        int testNumber = 4;
+
+        //WEHN
+        actual = FizzBuzz.of(testNumber);
+
+        //RESULT
+        Assert.assertEquals(expected, actual);
+    }
 }