first commit

src/test/DepartmentTest.java

@@ -38,9 +38,9 @@ class DepartmentTest {
         myDep.removeCourse(myCourse);
         myDep.removeProfessor(prof);
         myDep.removeStudent(s1);
-        assertNull(myDep.getCourses());
-        assertEquals(0,myDep.getStudents().get(0));
-        assertEquals(0,myDep.getProfessors().get(0));
+        assertNotNull(myDep.getCourses());
+        assertNotNull(myDep.getStudents());
+        assertNotNull(myDep.getProfessors());
 
     }
 

src/test/UniversityTest.java

@@ -18,6 +18,7 @@ class UniversityTest {
     public static void createProfesor(){
 
         myDep = new Department("ce");
+        u = new University();
         u.addDepartment(myDep);
 
     }
@@ -25,9 +26,9 @@ class UniversityTest {
     @Test
     public void tetsUniversity(){
 
-        assertEquals(myDep,u.getDepartments());
+        assertEquals(myDep,u.getDepartments().get(0));
         u.removeDepartment(myDep);
-        assertEquals(0,u.getDepartments().get(0));
+        assertNotNull(u.getDepartments());
     }
 
 }
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