test

pom.xml

@@ -14,12 +14,14 @@
     </properties>
 
     <dependencies>
+
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
+
     </dependencies>
 
 </project>

src/main/java/Student.java

@@ -0,0 +1,53 @@
+import java.util.ArrayList;
+
+public class Student {
+
+    long id;
+
+    String name;
+
+    ArrayList<Integer> grades;
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public ArrayList<Integer> getGrades() {
+        return grades;
+    }
+
+    public void setGrades(ArrayList<Integer> grades) {
+        this.grades = grades;
+    }
+
+    public Student(long id, String name, ArrayList grade) {
+        this.id = id;
+        this.name = name;
+        this.grades = grade;
+    }
+
+    public void addGrade(int grade) {
+        grades.add(grade);
+    }
+
+    public double getAverage() {
+        int sum = 0;
+        for (int i = 0; i < grades.size(); i++) {
+            sum += grades.get(i);
+        }
+        return sum / grades.size();
+    }
+
+}

src/test/java/StudentTest.java

@@ -0,0 +1,31 @@
+import org.junit.Before;
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+public class StudentTest {
+
+    Student empty;
+    Student studentWithOne;
+    Student studentWithMany;
+
+    @Before
+    public void setUp() {
+
+    }
+
+    @Test
+    public void testSize() {
+
+    }
+
+    @Test
+    public void testIsEmpty() {
+
+    }
+
+    @Test
+    public void testAdd() {
+
+    }
+
+}