diff --git a/src/test/java/org/example/AdministrationTest.java b/src/test/java/org/example/AdministrationTest.java
index a5d4da5..fcb0955 100644
--- a/src/test/java/org/example/AdministrationTest.java
+++ b/src/test/java/org/example/AdministrationTest.java
@@ -19,8 +19,32 @@ class AdministrationTest {
         Professor foundProf1 = admin.findProfessorById("P1001");
         assertEquals(prof1, foundProf1);
 
+    }
 
+    @Test
+    void deleteProfessor() {
+        Administration administration = new Administration();
+        Professor professor = new Professor("P1002", "Diana", "Professor");
 
+        administration.addProfessor(professor);
+        assertTrue(administration.deleteProfessor("P1002"));
+        assertNull(administration.findProfessorById("P1002"));
+    }
+
+    @Test
+    void testAddProfessor() {
+        Administration administration = new Administration();
+
+        Professor newProfessor = new Professor("P2001", "Dr. Jane Smith", "Professor");
+
+        administration.addProfessor(newProfessor);
+
+        Professor retrievedProfessor = administration.findProfessorById("P2001");
+
+        assertNotNull(retrievedProfessor, "Professor should be found in the administration.");
+        assertEquals(newProfessor.getProfessorID(), retrievedProfessor.getProfessorID(), "The retrieved professor's ID should match the original.");
+        assertEquals(newProfessor.getName(), retrievedProfessor.getName(), "The retrieved professor's name should match the original.");
+        assertEquals(newProfessor.getRole(), retrievedProfessor.getRole(), "The retrieved professor's role should match the original.");
     }
 
     @Test
@@ -70,6 +94,20 @@ class AdministrationTest {
         Student student2 = admin.findStudentById("S1001");
         assertEquals(student, student2);
     }
+    @Test
+    void addAdminTest() {
+        Administration administration = new Administration();
+
+        Admin admin = new Admin("Jane Doe", "A2001", "Admin");
+        administration.addAdmin(admin);
+        Admin result = administration.findAdminById("A2001");
+
+        assertNotNull(result, "Admin should be found after being added.");
+        assertEquals("A2001", result.getId(), "The ID of the found admin should match.");
+        assertEquals("Jane Doe", result.getName(), "The name of the found admin should match.");
+    }
+
+
 
     /**
      * Test case for the addCourse method.