diff --git a/src/main/java/io/fp/campus/Faculty.java b/src/main/java/io/fp/campus/Faculty.java
index 0ed34af5e9c4e8f1b7630e531c46add9d51013a7..6e2598030894c07abd60290ea0215ac9ff2b7b04 100644
--- a/src/main/java/io/fp/campus/Faculty.java
+++ b/src/main/java/io/fp/campus/Faculty.java
@@ -21,11 +21,13 @@ public class Faculty {
     }
 
     public void addProfessor(Professor professor) {
-        profs.add(professor);
+        if (!profs.contains(professor))
+            profs.add(professor);
     }
 
     public void addAssistent(Assistent assistent) {
-        assis.add(assistent);
+        if (!assis.contains(assistent))
+            assis.add(assistent);
     }
 
     public ArrayList<Professor> getProfs() {
diff --git a/src/main/java/io/fp/campus/Professor.java b/src/main/java/io/fp/campus/Professor.java
index afc01bf0e79e86310c2cf512800102e4a3786fce..c16b5a0f29d6f3ff0d6936663ace98950a674652 100644
--- a/src/main/java/io/fp/campus/Professor.java
+++ b/src/main/java/io/fp/campus/Professor.java
@@ -50,4 +50,12 @@ public class Professor {
     public String toString() {
         return name;
     }
+
+    public int getAge() {
+        return age;
+    }
+
+    public void setAge(int age) {
+        this.age = age;
+    }
 }
\ No newline at end of file
diff --git a/src/test/java/io/fp/campus/AppTest.java b/src/test/java/io/fp/campus/AppTest.java
deleted file mode 100644
index 7a2c5ad72830fb46edfc9cd093d07378be2b0ce8..0000000000000000000000000000000000000000
--- a/src/test/java/io/fp/campus/AppTest.java
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * This Java source file was generated by the Gradle 'init' task.
- */
-package io.fp.campus;
-
-
-class AppTest {
-    
-}