test done for classes grade and teachingUnitResults

src/main/java/Grade.java

@@ -28,8 +28,7 @@ public class Grade {
    */
 
   public double getValue() {
-    // TODO : change code
-    return 0.;
+    return this.value;
   }
 
   /**
@@ -38,8 +37,7 @@ public class Grade {
    */
   @Override
   public String toString() {
-    // TODO : change code
-    return null;
+    return this.value + "/" + MAXIMUM_GRADE ;
   }
 
   /**
@@ -50,8 +48,13 @@ public class Grade {
    * @return a grade corresponding to the mean of grade in {@code grades}
    */
   public static Grade averageGrade(List<Grade> grades){
-    // TODO : change code
-    return null;
+    double sumOfGrades = 0.0;
+    int nbOfStudents = grades.size();
+    for (Grade oneGrade : grades) {
+      sumOfGrades += oneGrade.value;
+    }
+    Grade averageGrade = new Grade(sumOfGrades / nbOfStudents);
+    return averageGrade;
   }
 
   /**

src/main/java/TeachingUnitResult.java

@@ -26,8 +26,7 @@ public class TeachingUnitResult {
    * @return the grade associated to the result
    */
   public Grade getGrade() {
-    // TODO : change code
-    return null;
+    return this.grade;
   }
 
   /**
@@ -36,8 +35,7 @@ public class TeachingUnitResult {
    */
   @Override
   public String toString() {
-    // TODO : change code
-    return null;
+    return this.teachingUnitName + " : " + this.grade.toString();
   }
 
 

src/test/java/GradeTest.java

@@ -33,14 +33,14 @@ class GradeTest {
             .isNotEqualTo(20.0);
   }
 
-  @Disabled("Disabled until Grade is coded")
+  //@Disabled("Disabled until Grade is coded")
   @Test
   void testGetValue() {
     assertThat(twenty.getValue()).isCloseTo(20, within(EPSILON));
     assertThat(zero.getValue()).isCloseTo(0, within(EPSILON));
   }
 
-  @Disabled("Disabled until Grade is coded")
+  //@Disabled("Disabled until Grade is coded")
   @Test
   void testToString() {
     assertThat(twenty.toString()).isEqualTo("20.0/20");
@@ -48,7 +48,7 @@ class GradeTest {
 
   }
 
-  @Disabled("Disabled until Grade is coded")
+  //@Disabled("Disabled until Grade is coded")
   @Test
   void testAverageGrade(){
     assertThat(Grade.averageGrade(grades)).isEqualTo(ten);

src/test/java/TeachingUnitResultTest.java

@@ -9,14 +9,14 @@ class TeachingUnitResultTest {
   private static final TeachingUnitResult zeroAtStructDiscrete =
           new TeachingUnitResult("Structures discrètes", GradeTest.zero);
 
-  @Disabled("Disabled until TeachingUnitResult is coded")
+  //@Disabled("Disabled until TeachingUnitResult is coded")
   @Test
   void testGetGrade() {
     assertThat(twentyAtProg.getGrade()).isEqualTo(GradeTest.twenty);
     assertThat(zeroAtStructDiscrete.getGrade()).isEqualTo(GradeTest.zero);
   }
 
-  @Disabled("Disabled until TeachingUnitResult is coded")
+  //@Disabled("Disabled until TeachingUnitResult is coded")
   @Test
   void testToString() {
     assertThat(twentyAtProg.toString()).isEqualTo("Programmation 2 : 20.0/20");