diff --git a/src/main/java/seedu/address/model/reminder/ReminderList.java b/src/main/java/seedu/address/model/reminder/ReminderList.java
index dc60bf206d1..530387ce32b 100644
--- a/src/main/java/seedu/address/model/reminder/ReminderList.java
+++ b/src/main/java/seedu/address/model/reminder/ReminderList.java
@@ -66,6 +66,10 @@ public boolean equals(Object other) {
             return false;
         }
 
+        if (!remindersList.equals(otherReminderList.remindersList)) {
+            return false;
+        }
+
         return true;
     }
 }
diff --git a/src/test/java/seedu/address/model/person/PersonTest.java b/src/test/java/seedu/address/model/person/PersonTest.java
index 638c7d80a5d..1d071658e6c 100644
--- a/src/test/java/seedu/address/model/person/PersonTest.java
+++ b/src/test/java/seedu/address/model/person/PersonTest.java
@@ -177,6 +177,11 @@ public void scheduleStringFormat() {
                 missedAlice.scheduleStringFormat());
     }
 
+    @Test
+    public void birthdayStringFormat() {
+        assertEquals(ALICE.birthdayStringFormat(), ALICE.getBirthday() + " - " + ALICE.getName());
+    }
+
     @Test
     public void hasUpcomingBirthday() {
         Person upcomingAlice = new PersonBuilder(ALICE).withBirthday(DateUtil.parseDateToString(
diff --git a/src/test/java/seedu/address/model/reminder/ReminderListTest.java b/src/test/java/seedu/address/model/reminder/ReminderListTest.java
index 9d35705b474..2303f99ec1a 100644
--- a/src/test/java/seedu/address/model/reminder/ReminderListTest.java
+++ b/src/test/java/seedu/address/model/reminder/ReminderListTest.java
@@ -1,6 +1,7 @@
 package seedu.address.model.reminder;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static seedu.address.testutil.TypicalPersons.ALICE;
 
 import java.time.LocalDate;
 import java.time.LocalDateTime;
@@ -9,6 +10,7 @@
 
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
+import seedu.address.commons.util.DateUtil;
 import seedu.address.model.person.Person;
 import seedu.address.testutil.PersonBuilder;
 
@@ -38,4 +40,73 @@ public void toStringMethodSchedule() {
         assertEquals(reminderList.toString(), person1.scheduleStringFormat()
                 + "\n" + person2.scheduleStringFormat() + "\n");
     }
+
+    @Test
+    public void toStringMethodBirthday() {
+        ObservableList<Person> remindersList = FXCollections.observableArrayList();
+        Person person1 = new PersonBuilder().withBirthday(DateUtil.parseDateToString(
+                LocalDate.of(2001, 1, 1))).build();
+        remindersList.add(person1);
+        Person person2 = new PersonBuilder().withBirthday(DateUtil.parseDateToString(
+                LocalDate.of(2002, 2, 2))).build();
+        remindersList.add(person2);
+        ReminderList reminderList = new ReminderList(ReminderType.BIRTHDAYS, remindersList);
+        assertEquals(reminderList.toString(), person1.birthdayStringFormat()
+                + "\n" + person2.birthdayStringFormat() + "\n");
+    }
+
+    @Test
+    public void equals_sameObject_true() {
+        ObservableList<Person> remindersList = FXCollections.observableArrayList();
+        ReminderList reminderList = new ReminderList(ReminderType.LAST_MET, remindersList);
+        assertEquals(reminderList, reminderList);
+    }
+
+    @Test
+    public void equals_sameValues_true() {
+        ObservableList<Person> remindersList = FXCollections.observableArrayList();
+        ReminderList reminderList1 = new ReminderList(ReminderType.LAST_MET, remindersList);
+        ReminderList reminderList2 = new ReminderList(ReminderType.LAST_MET, remindersList);
+        assertEquals(reminderList1, reminderList2);
+    }
+
+    @Test
+    public void equals_differentType_false() {
+        ObservableList<Person> remindersList = FXCollections.observableArrayList();
+        ReminderList reminderList = new ReminderList(ReminderType.LAST_MET, remindersList);
+        assertEquals(reminderList.equals(1), false);
+    }
+
+    @Test
+    public void equals_differentReminderType_false() {
+        ObservableList<Person> remindersList = FXCollections.observableArrayList();
+        ReminderList reminderList1 = new ReminderList(ReminderType.LAST_MET, remindersList);
+        ReminderList reminderList2 = new ReminderList(ReminderType.SCHEDULES, remindersList);
+        assertEquals(reminderList1.equals(reminderList2), false);
+    }
+
+    @Test
+    public void equals_null_false() {
+        ObservableList<Person> remindersList = FXCollections.observableArrayList();
+        ReminderList reminderList = new ReminderList(ReminderType.LAST_MET, remindersList);
+        assertEquals(reminderList.equals(null), false);
+    }
+
+    @Test
+    public void equals_differentRemindersList_false() {
+        ObservableList<Person> remindersList1 = FXCollections.observableArrayList();
+        ObservableList<Person> remindersList2 = FXCollections.observableArrayList();
+        remindersList2.add(ALICE);
+        ReminderList reminderList1 = new ReminderList(ReminderType.LAST_MET, remindersList1);
+        ReminderList reminderList2 = new ReminderList(ReminderType.LAST_MET, remindersList2);
+        assertEquals(reminderList1.equals(reminderList2), false);
+    }
+
+    @Test
+    public void equals_sameRemindersList_true() {
+        ObservableList<Person> remindersList = FXCollections.observableArrayList();
+        ReminderList reminderList1 = new ReminderList(ReminderType.LAST_MET, remindersList);
+        ReminderList reminderList2 = new ReminderList(ReminderType.LAST_MET, remindersList);
+        assertEquals(reminderList1.equals(reminderList2), true);
+    }
 }
diff --git a/src/test/java/seedu/address/model/reminder/ReminderTypeTest.java b/src/test/java/seedu/address/model/reminder/ReminderTypeTest.java
index 85cdbec9c0a..2c142a4bc4e 100644
--- a/src/test/java/seedu/address/model/reminder/ReminderTypeTest.java
+++ b/src/test/java/seedu/address/model/reminder/ReminderTypeTest.java
@@ -9,5 +9,6 @@ public class ReminderTypeTest {
     public void toStringMethod() {
         assertEquals("Last Met", ReminderType.LAST_MET.toString());
         assertEquals("Schedules", ReminderType.SCHEDULES.toString());
+        assertEquals("Birthday", ReminderType.BIRTHDAYS.toString());
     }
 }