import static org.junit.Assert.*;
import org.junit.*;

public class ScoreCollectionTest {

    @Test
    public void test() { 
        fail("Not yet implemented");
    }
}

@@ -27,16 +27,59 @@
 sert.*;%0A
+import static org.hamcrest.CoreMatchers.*;%0A
 import o
@@ -157,17 +157,45 @@
 oid 
-test
+answersArithmeticMeanOfTwoNumbers
 () %7B
- 
 %0A   
@@ -203,34 +203,279 @@
     
-fail(%22Not yet implemented%22
+// arrange%0A        ScoreCollection collection = new ScoreCollection();%0A        collection.add(() -%3E 5);%0A        collection.add(() -%3E 7);%0A%0A        // act%0A        int actualResult = collection.arithmeticMean();%0A%0A        // assert%0A        assertThat(actualResult, equalTo(6)
 );%0A 

edit the test to contain more sense data