FINALLLLLLLLLLLLLLLLLLLLLLLLLLLLLL :))))))))))))

src/main/java/com/zipcodewilmington/phonebook/PhoneBook.java

         String entirePhoneBook = "";
         Set<String> nameTreeKeys = personTreeMap.keySet();
         for (String personsName : nameTreeKeys) {
-             entirePhoneBook += (personsName + "'s phone number: " +  personTreeMap.get(personsName).getNumbers() + "\n");
+             entirePhoneBook += (personsName + "'s phone number(s): " +  personTreeMap.get(personsName).getNumbers() + "\n");
         }
 
         return entirePhoneBook;
         }
 
     }
-
-

src/test/java/com/zipcodewilmington/phonebook/PhoneBookTest.java

     }
 
     @Test
-    public void
+    public void displayEntirePhoneBookContentsTest(){
+        testPhonebook.add("Andrea", "8888");
+        testPhonebook.add("Alexei", "8877");
+        String actual = testPhonebook.displayEntirePhoneBookContents();
+        String expected = "Alexei's phone number: [8877]\nAndrea's phone number: [8888]\n";
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void addAdditionalNumberTest(){
+        testPhonebook.add("Andrea", "8888");
+        testPhonebook.personTreeMap.get("Andrea").addAdditionalNumber("1111");
+        String actual= testPhonebook.displayEntirePhoneBookContents();
+        String expected = "Andrea's phone number(s): [8888, 1111]\n";
+        Assert.assertEquals(expected, actual);
+
+    }
+
+    @Test
+    public void removeSingleNumberTest(){
+        testPhonebook.add("Andrea", "8888");
+        testPhonebook.personTreeMap.get("Andrea").addAdditionalNumber("1111");
+        testPhonebook.personTreeMap.get("Andrea").addAdditionalNumber("2222");
+        testPhonebook.personTreeMap.get("Andrea").removeSingleNumber("1111");
+        String actual = testPhonebook.displayEntirePhoneBookContents();
+        String expected = "Andrea's phone number(s): [8888, 2222]\n";
+        Assert.assertEquals(expected, actual);
+    }
 
 }