Generated Imports use Unescaped backslashes

[centmeteenvin]

When generating a mock of a class that imports from the other class .

test.dart

import '../bin/webhook.dart';

@GenerateNiceMocks([MockSpec<WebHookService>()])
import "test.mocks.dart";

test.mocks.dart

// Mocks generated by Mockito 5.4.2 from annotations
// in cd/test/server_test.dart.
// Do not manually edit this file.

// ignore_for_file: no_leading_underscores_for_library_prefixes
import 'package:mockito/mockito.dart' as _i1;

import '..\bin\models\webhook_payload\webhook_payload.dart' as _i3;
import '..\bin\webhook.dart' as _i2;

The last 2 import statements use the backslash. This escapes the firstfollowing charachter making the import unusable.

[srawlins]

Great bug report! Can you mention what version of mockito you are running? Thanks!

[centmeteenvin]

The latest version 5.4.2. I did use a lot of other build_runner packages. What also might be useful is: Platform Windows. Dart SDK version 3.15 No flutter Coding in vscode but not using any of the build_runner extensions.

[Sese-Schneider]

I can reproduce this issue and am also impacted by this. cc @srawlins I'm unable to generate any mocks.

Details

Environment

• Only happens when running build_runner on Windows
• mockito: ^5.4.3
• build_runner: ^2.4.6

Example

This simple file can always reproduce the issue.

import 'package:mockito/annotations.dart';

import '../u_folder_name/helper.dart';
import 'test.mocks.dart';

@GenerateMocks([Helper])
class Test {}

Stacktrace

I initially had this issue because my folder starts with u, and \u has a special treatment on windows.

[SEVERE] mockito:mockBuilder on test/test.dart (cached):

Could not format because the source could not be parsed:

line 10, column 11 of .: An escape sequence starting with '\u' must be followed by 4 hexadecimal digits.
   ╷
10 │ import '..\u_folder_name\helper.dart' as _i2;

Workarounds

See https://github.com/dart-lang/mockito/pull/721