Add AdministrationTest Class and added test for findProfessorByID Method

src/test/java/org/example/AdministrationTest.java

@@ -0,0 +1,22 @@
+package org.example;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class AdministrationTest {
+
+    @Test
+    void findProfessorById() {
+        Administration administration = new Administration();
+        Professor prof1 = new Professor("P1001", "Aaron", "Professor");
+
+        administration.addProfessor(prof1);
+
+        Professor foundProf1 = administration.findProfessorById("P1001");
+        assertEquals(prof1, foundProf1);
+
+
+
+    }
+}