diff --git a/test/service_tests/comment_service_test.dart b/test/service_tests/comment_service_test.dart
new file mode 100644
index 000000000..a8f58a14b
--- /dev/null
+++ b/test/service_tests/comment_service_test.dart
@@ -0,0 +1,189 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:graphql_flutter/graphql_flutter.dart';
+import 'package:mockito/mockito.dart';
+import 'package:talawa/locator.dart';
+import 'package:talawa/services/comment_service.dart';
+import 'package:talawa/services/database_mutation_functions.dart';
+import 'package:talawa/utils/comment_queries.dart';
+
+import '../helpers/test_helpers.dart';
+
+void main() {
+  setUp(() {
+    registerServices();
+  });
+  group('test for comment servicce', () {
+    test('test for createComments', () async {
+      final dataBaseMutationFunctions = locator<DataBaseMutationFunctions>();
+
+      final query = CommentQueries().createComment();
+      when(
+        dataBaseMutationFunctions.gqlAuthMutation(
+          query,
+          variables: {
+            'postId': 'ayush post', //Add your variables here
+            'text': 'hey Ayush here!'
+          },
+        ),
+      ).thenAnswer(
+        (_) async => QueryResult(
+          options: QueryOptions(document: gql(query)),
+          data: {
+            'text': 'hey Ayush here!',
+            'postId': 'ayush post',
+          },
+          source: QueryResultSource.network,
+        ),
+      );
+
+      final service = CommentService();
+
+      await service.createComments(
+        'ayush post',
+        'hey Ayush here!',
+      );
+    });
+    test('test for getCommentsForPost', () async {
+      final dataBaseMutationFunctions = locator<DataBaseMutationFunctions>();
+
+      final String getCommmentQuery =
+          CommentQueries().getPostsComments('Ayush s postid');
+      when(
+        dataBaseMutationFunctions.gqlAuthMutation(getCommmentQuery),
+      ).thenAnswer(
+        (_) async => QueryResult(
+          options: QueryOptions(document: gql(getCommmentQuery)),
+          data: {
+            'commentsByPost': [
+              {
+                'creator': {
+                  '_id': '123',
+                  'firstName': 'John',
+                  'lastName': 'Doe',
+                  'email': 'test@test.com',
+                },
+                'createdAt': '123456',
+                'text': 'test text',
+                'post': 'test post',
+                'likeCount': 'test count',
+              },
+              {
+                'creator': {
+                  '_id': '123',
+                  'firstName': 'Ayush',
+                  'lastName': 'Doe',
+                  'email': 'test@test.com',
+                },
+                'createdAt': '123456',
+                'text': 'test text',
+                'post': 'test post',
+                'likeCount': 'test count',
+              },
+              {
+                'creator': {
+                  '_id': '123',
+                  'firstName': 'john',
+                  'lastName': 'chauhdary',
+                  'email': 'test@test.com',
+                },
+                'createdAt': '123456',
+                'text': 'test text',
+                'post': 'test post',
+                'likeCount': 'test count',
+              }
+            ]
+          },
+          source: QueryResultSource.network,
+        ),
+      );
+
+      final service = CommentService();
+
+      final result = await service.getCommentsForPost('Ayush s postid');
+
+      print(result);
+      if (result.toString().contains('[{creator: '
+          '{'
+          '_id: 123, '
+          'firstName: John, '
+          'lastName: Doe, '
+          'email: test@test.com},'
+          ' createdAt: 123456, '
+          'text: test text, '
+          'post: test post, '
+          'likeCount: test count}, '
+          '{creator: '
+          '{_id: 123, '
+          'firstName: Ayush, '
+          'lastName: Doe, '
+          'email: test@test.com}, '
+          'createdAt: 123456, '
+          'text: test text, '
+          'post: test post, '
+          'likeCount: test count}, '
+          '{creator: {_id: 123,'
+          ' firstName: john, '
+          'lastName: chauhdary, '
+          'email: test@test.com}, '
+          'createdAt: 123456, '
+          'text: test text, '
+          'post: test post, '
+          'likeCount: test count}]')) {
+      } else {
+        fail('the result is not maatching');
+      }
+      expect(result, isNotEmpty);
+    });
+    test('test for getCommentsForPost for wrong post idd', () async {
+      final dataBaseMutationFunctions = locator<DataBaseMutationFunctions>();
+
+      final String getCommmentQuery =
+          CommentQueries().getPostsComments('Ayush');
+      when(
+        dataBaseMutationFunctions.gqlAuthMutation(getCommmentQuery),
+      ).thenAnswer(
+        (_) async => QueryResult(
+          options: QueryOptions(document: gql(getCommmentQuery)),
+          data: null,
+          source: QueryResultSource.network,
+        ),
+      );
+
+      final service = CommentService();
+
+      final result = await service.getCommentsForPost('Ayush');
+
+      print(result);
+      if (result.toString().contains('[{creator: '
+          '{'
+          '_id: 123, '
+          'firstName: John, '
+          'lastName: Doe, '
+          'email: test@test.com},'
+          ' createdAt: 123456, '
+          'text: test text, '
+          'post: test post, '
+          'likeCount: test count}, '
+          '{creator: '
+          '{_id: 123, '
+          'firstName: Ayush, '
+          'lastName: Doe, '
+          'email: test@test.com}, '
+          'createdAt: 123456, '
+          'text: test text, '
+          'post: test post, '
+          'likeCount: test count}, '
+          '{creator: {_id: 123,'
+          ' firstName: john, '
+          'lastName: chauhdary, '
+          'email: test@test.com}, '
+          'createdAt: 123456, '
+          'text: test text, '
+          'post: test post, '
+          'likeCount: test count}]')) {
+        fail('the result is not maatching');
+      }
+      expect(result, isEmpty);
+    });
+  });
+}