diff --git a/lib/src/models/event_model.dart b/lib/src/models/event_model.dart
index 0442e9e..28ba99b 100644
--- a/lib/src/models/event_model.dart
+++ b/lib/src/models/event_model.dart
@@ -46,4 +46,31 @@ class EventModel {
       "lowPriority": lowPriority,
     };
   }
+
+  @override
+  int get hashCode =>
+      id.hashCode ^
+      name.hashCode ^
+      pendigTasks.hashCode ^
+      when.hashCode ^
+      media.hashCode ^
+      tasks.hashCode ^
+      highPriority.hashCode ^
+      mediumPriority.hashCode ^
+      lowPriority.hashCode;
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      other is EventModel &&
+          runtimeType == other.runtimeType &&
+          id == other.id &&
+          name == other.name &&
+          pendigTasks == other.pendigTasks &&
+          when == other.when &&
+          media == other.media &&
+          tasks == other.tasks &&
+          highPriority == other.highPriority &&
+          mediumPriority == other.mediumPriority &&
+          lowPriority == other.lowPriority;
 }
diff --git a/lib/src/models/summary_model.dart b/lib/src/models/summary_model.dart
index 53860d8..8f273c3 100644
--- a/lib/src/models/summary_model.dart
+++ b/lib/src/models/summary_model.dart
@@ -54,4 +54,33 @@ class SummaryModel {
       "addedFriday": addedFriday,
     };
   }
+
+  @override
+  int get hashCode =>
+      completedMonday.hashCode ^
+      addedMonday.hashCode ^
+      completedTuesday.hashCode ^
+      addedTuesday.hashCode ^
+      completedWednesday.hashCode ^
+      addedWednesday.hashCode ^
+      completedThursday.hashCode ^
+      addedThursday.hashCode ^
+      completedFriday.hashCode ^
+      addedFriday.hashCode;
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      other is SummaryModel &&
+          runtimeType == other.runtimeType &&
+          completedMonday == other.completedMonday &&
+          addedMonday == other.addedMonday &&
+          completedTuesday == other.completedTuesday &&
+          addedTuesday == other.addedTuesday &&
+          completedWednesday == other.completedWednesday &&
+          addedWednesday == other.addedWednesday &&
+          completedThursday == other.completedThursday &&
+          addedThursday == other.addedThursday &&
+          completedFriday == other.completedFriday &&
+          addedFriday == other.addedFriday;
 }
diff --git a/lib/src/models/task_model.dart b/lib/src/models/task_model.dart
index 0855139..96339e3 100644
--- a/lib/src/models/task_model.dart
+++ b/lib/src/models/task_model.dart
@@ -34,4 +34,25 @@ class TaskModel {
       "event": event,
     };
   }
+
+  @override
+  int get hashCode =>
+      id.hashCode ^
+      text.hashCode ^
+      priority.hashCode ^
+      ownerUsername.hashCode ^
+      done.hashCode ^
+      event.hashCode;
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      runtimeType == other.runtimeType &&
+          other is TaskModel &&
+          id == other.id &&
+          text == other.text &&
+          priority == other.priority &&
+          ownerUsername == other.ownerUsername &&
+          done == other.done &&
+          event == other.event;
 }
diff --git a/lib/src/models/user_model.dart b/lib/src/models/user_model.dart
index 61bfc35..0ce2dc2 100644
--- a/lib/src/models/user_model.dart
+++ b/lib/src/models/user_model.dart
@@ -22,14 +22,7 @@ class UserModel {
     this.pendingHigh,
     this.pendingMedium,
     this.pendingLow,
-  })  : assert(id != null),
-        assert(username != null),
-        assert(tasks != null),
-        assert(summary != null),
-        assert(userId != null),
-        assert(pendingHigh != null),
-        assert(pendingMedium != null),
-        assert(pendingLow != null);
+  });
 
   ///Returns a [UserModel] from a map.
   UserModel.fromFirestore(Map<String, dynamic> firestoreMap, {String id})
@@ -42,4 +35,29 @@ class UserModel {
         pendingHigh = firestoreMap["pendingHigh"],
         pendingMedium = firestoreMap["pendingMedium"],
         pendingLow = firestoreMap["pendingLow"];
+
+  @override
+  int get hashCode =>
+      id.hashCode ^
+      username.hashCode ^
+      tasks.hashCode ^
+      summary.hashCode ^
+      userId.hashCode ^
+      pendingHigh.hashCode ^
+      pendingMedium.hashCode ^
+      pendingLow.hashCode;
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      runtimeType == other.runtimeType &&
+          other is UserModel &&
+          id == other.id &&
+          username == other.username &&
+          tasks == other.tasks &&
+          summary == other.summary &&
+          userId == other.userId &&
+          pendingHigh == other.pendingHigh &&
+          pendingMedium == other.pendingMedium &&
+          pendingLow == other.pendingLow;
 }
diff --git a/pubspec.yaml b/pubspec.yaml
index f9ff4ef..4368a33 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -22,6 +22,7 @@ dependencies:
   http: ^0.12.0
   sqflite: ^1.1.0
   rxdart: ^0.20.0
+  mockito: ^4.0.0
   firebase_core: ^0.3.0
   firebase_analytics: ^2.0.2
   cloud_firestore: ^0.9.0