it works : )

src/main/java/FizzBuzz.java

@@ -1,2 +1,19 @@
+import static java.lang.System.out;
+
 public class FizzBuzz {
+
+
+        int words(int fiz){
+
+            if(fiz % 3 == 0){
+                out.println("Fizz");
+            }else if(fiz % 5 == 0){
+                out.print("Buzz");
+            }else if (fiz % 3 == 0 && fiz % 5 == 0 ){
+
+                out.println("FizzBuzz");
+            }
+                 out.println(fiz);
+                 return fiz;
+        }
 }

src/test/java/FizzBuzzTest.java

@@ -1,2 +1,109 @@
+import org.junit.Assert;
+import org.junit.Test;
+
 public class FizzBuzzTest {
+
+
+    @Test
+    public void FizzTest(){
+        //Given
+        FizzBuzz fizz = new FizzBuzz();
+
+        int fiz = 3;
+
+        int expected = 3;
+
+        //When
+
+        int actual = fizz.words(fiz);
+
+        //then
+
+        Assert.assertEquals(expected,actual);
+
+
+
+
+
+    }
+    @Test
+    public void FizzTest2(){
+        //Given
+        FizzBuzz fizz = new FizzBuzz();
+
+        int fiz = 5;
+
+        int expected = 5;
+
+        //When
+
+        int actual = fizz.words(fiz);
+
+        //then
+
+        Assert.assertEquals(expected,actual);
+
+
+    }
+    @Test
+    public void FizzTest3(){
+        //Given
+        FizzBuzz fizz = new FizzBuzz();
+
+        int fiz = 15;
+
+        int expected = 15;
+
+        //When
+
+        int actual = fizz.words(fiz);
+
+        //then
+
+        Assert.assertEquals(expected,actual);
+
+
+    }
+    @Test
+    public void FizzTest4(){
+        //Given
+        FizzBuzz fizz = new FizzBuzz();
+
+        int fiz = 2;
+
+        int expected = 2;
+
+        //When
+
+        int actual = fizz.words(fiz);
+
+        //then
+
+        Assert.assertEquals(expected,actual);
+
+
+    }
+
+    @Test
+    public void FizzTest5(){
+        //Given
+        FizzBuzz fizz = new FizzBuzz();
+
+        int fiz = -2;
+
+        int expected = -2;
+
+        //When
+
+        int actual = fizz.words(fiz);
+
+        //then
+
+        Assert.assertEquals(expected,actual);
+
+
+
+
+
+    }
 }

src/test/java/FizzBuzzTestTest.java

@@ -0,0 +1,5 @@
+import static org.junit.Assert.*;
+
+public class FizzBuzzTestTest {
+
+}