diff --git a/first_val_product/test/backend_test.dart b/first_val_product/test/backend_test.dart
new file mode 100644
index 0000000..e45fe0a
--- /dev/null
+++ b/first_val_product/test/backend_test.dart
@@ -0,0 +1,77 @@
+import 'dart:developer';
+import 'package:first_val_product/main_page.dart';
+import 'package:first_val_product/backend.dart';
+import 'package:first_val_product/widgets/file_widget.dart';
+import 'package:flutter/widgets.dart';
+import 'package:test/test.dart';
+import 'dart:math';
+import 'package:flutter/material.dart';
+// String generateString(){
+//   String invalid_string = "";
+//   for(int i = 0; i < 10; i++){ 
+//     invalid_string = invalid_string + String.fromCharCode(127 + Random().nextInt(100)); 
+//   }
+//   return invalid_string;
+// }
+bool DEBUG = false;
+Future<void> main() async {
+  // String test = generateString();
+  Future<List<CVInfo>> list =  getCVInfos();
+  List<CVInfo> cooler_list = await list;
+  bool counter = false;
+  group('Input text tests',(){
+    test("Input file should contain text", (){
+      expect(cooler_list[0].cvString.length > 0, true);
+    });
+    test("The resume must contain only the English alphabet and mathematical symbols",(){
+     for(int i = 0; i < cooler_list[0].coolText.length;i++ ){
+      expect(cooler_list[0].coolText.codeUnitAt(i) < 127, true);
+     }
+    });
+  });
+  int length = cooler_list[0].cvString.length;
+  for(int i = 0; i < length; i++){
+    if(cooler_list[0].cvString[i] == ':'){
+      counter = true;
+    }
+    if(cooler_list[0].cvString[i] == String.fromCharCode(92) && cooler_list[0].cvString[i + 1] == 'n'){
+      if(DEBUG){
+        print(counter);
+      } 
+      counter = false;
+    }
+    if(counter){
+      if(cooler_list[0].cvString[i] == ' '){
+        for(int j = i; j < cooler_list[0].cvString.length ; j++){
+          if(cooler_list[0].cvString[j] == ',' || cooler_list[0].cvString[j] == String.fromCharCode(92)){
+            if(DEBUG){
+              bool search_string = cooler_list[0].searchFor(cooler_list[0].cvString.substring(i, j)); 
+            // expect(true,true);
+              print(cooler_list[0].cvString.substring(i, j));
+              print(search_string);
+            }
+            test('Search word should exist in file', (){
+              expect(cooler_list[0].searchFor(cooler_list[0].cvString.substring(i, j)), true);
+            });
+            i = j;
+            break;
+          }
+        }
+      }
+    }
+  }
+  group("Main Page test`s", (){
+    MainPage test_page = new MainPage();
+    test_page.currentCVInfo = cooler_list[0];
+    test_page.allCVInfos.add(test_page.currentCVInfo!);
+    test("Delete CV must lead to decrease number of CV`s ", (){
+      test_page.allCVInfos.remove(cooler_list[0]);
+      expect(test_page.allCVInfos.length, 0);
+    });
+    test("Remove non existing CV should not affect on number of CV`s",(){
+      int updated_number_of_CVs = test_page.allCVInfos.length;
+      test_page.allCVInfos.remove(cooler_list);
+      expect(updated_number_of_CVs, test_page.allCVInfos.length);
+    });
+  });
+}