Expected "../../flutter/.dart_tool/foo" to be caught by HeaderFilterRegex ([../]+/flutter/(assets|benchmarking|bin|build|ci|common|display_list|docs|examples|flow|flutter_frontend_server|flutter_vma|fml|impeller|lib|runtime|shell|skia|sky|testing|tools|vulkan|wasm|web_sdk)/.*).
Test "contains every root directory in the regex": Failed
In test "contains every root directory in the regex" Expect.isTrue(false) fails.
#0      Expect._fail (package:expect/expect.dart:881:5)
#1      Expect.isTrue (package:expect/expect.dart:181:5)
#2      isTrue (package:async_helper/async_minitest.dart:209:10)
#3      expect (package:async_helper/async_minitest.dart:72:4)
#4      main.<anonymous closure> (file:///b/s/w/ir/cache/builder/src/flutter/tools/clang_tidy/test/header_filter_regex_test.dart:67:7)
#5      Test.run.<anonymous closure>.<anonymous closure> (package:litetest/src/test.dart:69:21)
#6      new Future.<anonymous closure> (dart:async/future.dart:258:40)
#7      _rootRun (dart:async/zone.dart:1391:47)
#8      _CustomZone.run (dart:async/zone.dart:1301:19)
#9      _CustomZone.runGuarded (dart:async/zone.dart:1209:7)
#10     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1249:23)
#11     _rootRun (dart:async/zone.dart:1399:13)
#12     _CustomZone.run (dart:async/zone.dart:1301:19)
#13     _CustomZone.bindCallback.<anonymous closure> (dart:async/zone.dart:1233:23)
#14     Timer._createTimer.<anonymous closure> (dart:async-patch/timer_patch.dart:18:15)
#15     _Timer._runTimers (dart:isolate-patch/timer_impl.dart:398:19)
#16     _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:429:5)
#17     _RawReceivePort._handleMessage (dart:isolate-patch/isolate_patch.dart:184:12)