When mockito/annotations fails to create a mock it would be good to know what class was trying to be mocked and where in the source code this class was added to be mocked

[apwilson]

When mockito/annotations fails to make mocks for one reason or another it's often not clear which mocks it failed to create. You instead get some cryptic stuff like this:

Invalid @GenerateMocks annotation: Mockito cannot generate a valid override for method '<redacted>'; parameter '<redacted>' causes a problem: default value has a private type: asset:<redacted>#<redacted>.
package:mockito/src/builder.dart 1348:11                   _MockClassInfo._matchingParameter.<fn>
package:code_builder/src/specs/method.g.dart 641:33        _$ParameterBuilder.update
package:code_builder/src/specs/method.g.dart 403:32        new _$Parameter
package:mockito/src/builder.dart 1334:12                   _MockClassInfo._matchingParameter
package:mockito/src/builder.dart 1061:35                   _MockClassInfo._buildOverridingMethod
package:mockito/src/builder.dart 1016:36                   _MockClassInfo.methodOverrides.<fn>
package:code_builder/src/specs/method.g.dart 332:33        _$MethodBuilder.update
package:code_builder/src/specs/method.g.dart 38:29         new _$Method
package:mockito/src/builder.dart 1016:15                   _MockClassInfo.methodOverrides
dart:core                                                  List.addAll
package:built_collection/src/list/list_builder.dart 98:14  ListBuilder.addAll
package:mockito/src/builder.dart 941:14                    _MockClassInfo._buildMockClass.<fn>
package:code_builder/src/specs/class.g.dart 292:33         _$ClassBuilder.update
package:code_builder/src/specs/class.g.dart 34:28          new _$Class
package:mockito/src/builder.dart 886:12                    _MockClassInfo._buildMockClass
package:mockito/src/builder.dart 836:9                     new _MockLibraryInfo
package:mockito/src/builder.dart 74:29                     MockBuilder.build
===== asynchronous gap ===========================
package:build/src/generate/run_builder.dart 52:7           runBuilder.buildForInput

But it's not clear what the class attempting to mocked is or what file or line number. All would be helpful.

[srawlins]

+1. I think the situation exists because the code detecting that it cannot create an override is very far from the code that has the exact class being mocked. But we already do fancy things to build up errors and pass them up; we should be able to also fill in the class-being-mocked after an error is created.

[srawlins]

Closed with f4cd65b.