webdev throws error after I added a test under the test/ directory

[vsmenon]

From @renatoathaydes on February 6, 2019 17:40

• Dart SDK Version (dart --version)

Dart VM version: 2.1.0 (Unknown timestamp) on "linux_x64"

• Whether you are using Windows, MacOSX, or Linux (if applicable)

Linux Ubuntu

---

I've got a simple web project started with stagehand web-simple.

I had some dart files in the web folder, and decided to write some tests, so I put my test under test/model_test.dart.

The target of the test is a file under web/model.dart, so I have this import on the test file:

import '../web/model.dart';

I can run this test fine from the IDE and also with:

pub run test

But now, when I run webdev serve an error occurs:

Creating build script, took 7156ms
[INFO] Setting up file watchers completed, took 11ms
[INFO] Waiting for all file watchers to be ready completed, took 80ms
[INFO] Reading cached asset graph completed, took 259ms
[INFO] Checking for updates since last build completed, took 600ms
[INFO] Running build completed, took 153ms
[INFO] Caching finalized dependency graph completed, took 128ms
[SEVERE] build_web_compilers|ddc on test/model_test.dartdevc.module (cached):
Error compiling dartdevc module:webdart_example|test/model_test.ddc.js

We're sorry, you've found a bug in our compiler.
You can report this bug at:
    https://github.com/dart-lang/sdk/issues/labels/area-dev-compiler
Please include the information below in your report, along with
any other information that may help us track it down. Thanks!
    dartdevc arguments: --dart-sdk-summary=/usr/lib/dart/lib/_internal/ddc_sdk.sum --modules=amd -o test/model_test.ddc.js --module-root=. --library-root=/test --summary-extension=dartdevc.linked.sum --no-summarize --options=packages/build_modules/src/analysis_options.default.yaml --source-map --source-map-comment --inline-source-map -s web/main.dartdevc.linked.sum -s packages/collection/src/utils.dartdevc.linked.sum -s packages/collection/src/algorithms.dartdevc.linked.sum -s packages/collection/src/canonicalized_map.dartdevc.linked.sum -s packages/collection/src/comparators.dartdevc.linked.sum -s packages/collection/src/iterable_zip.dartdevc.linked.sum -s packages/collection/src/priority_queue.dartdevc.linked.sum -s packages/collection/collection.dartdevc.linked.sum -s packages/async/async.dartdevc.linked.sum -s packages/path/path.dartdevc.linked.sum -s packages/stream_channel/stream_channel.dartdevc.linked.sum -s packages/meta/meta.dartdevc.linked.sum -s packages/stack_trace/stack_trace.dartdevc.linked.sum -s packages/matcher/src/core_matchers.dartdevc.linked.sum -s packages/matcher/matcher.dartdevc.linked.sum -s packages/charcode/ascii.dartdevc.linked.sum -s packages/charcode/html_entity.dartdevc.linked.sum -s packages/charcode/charcode.dartdevc.linked.sum -s packages/term_glyph/term_glyph.dartdevc.linked.sum -s packages/source_span/source_span.dartdevc.linked.sum -s packages/string_scanner/string_scanner.dartdevc.linked.sum -s packages/boolean_selector/boolean_selector.dartdevc.linked.sum -s packages/pedantic/pedantic.dartdevc.linked.sum -s packages/test_api/test_api.dartdevc.linked.sum -s packages/pool/pool.dartdevc.linked.sum -s packages/test_api/src/util/iterable_set.dartdevc.linked.sum -s packages/test_core/test_core.dartdevc.linked.sum -s packages/test/test.dartdevc.linked.sum --url-mapping=file:///test/model_test.dart,test/model_test.dart file:///test/model_test.dart
    dart --version: 2.1.0 (Unknown timestamp) on "linux_x64"

Invalid library root. /test/ does not contain /web/model.dart
#0 jsLibraryName (package:dev_compiler/src/analyzer/code_generator.dart:6396:5)
#1 CodeGenerator.emitLibraryName. (package:dev_compiler/src/analyzer/code_generator.dart:6153:34)
#2 __InternalLinkedHashMap&_HashVMBase&MapMixin&_LinkedHashMapMixin.putIfAbsent (dart:collection/runtime/libcompact_hash.dart:284:23)
#3 CodeGenerator.emitLibraryName (package:dev_compiler/src/analyzer/code_generator.dart:6152:18)
#4 CodeGenerator._emitTopLevelNameNoInterop (package:dev_compiler/src/analyzer/code_generator.dart:3352:9)
#5 CodeGenerator._emitType (package:dev_compiler/src/analyzer/code_generator.dart:3331:12)
#6 CodeGenerator._emitConstructorAccess (package:dev_compiler/src/analyzer/code_generator.dart:3261:44)
#7 CodeGenerator._emitConstructorName (package:dev_compiler/src/analyzer/code_generator.dart:4315:27)
#8 CodeGenerator._emitInstanceCreationExpression.emitNew (package:dev_compiler/src/analyzer/code_generator.dart:4371:18)
#9 CodeGenerator._emitInstanceCreationExpression (package:dev_compiler/src/analyzer/code_generator.dart:4378:51)
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#15 CascadeExpressionImpl.accept (package:analyzer/src/dart/ast/ast.dart:1426:49)
#16 CodeGenerator._visitExpression (package:dev_compiler/src/analyzer/code_generator.dart:5805:18)
#17 CodeGenerator._emitSetLocal (package:dev_compiler/src/analyzer/code_generator.dart:3534:12)
#18 CodeGenerator._emitSetSimpleIdentifier (package:dev_compiler/src/analyzer/code_generator.dart:3503:14)
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#20 CodeGenerator.visitAssignmentExpression (package:dev_compiler/src/analyzer/code_generator.dart:3368:52)
#21 AssignmentExpressionImpl.accept (package:analyzer/src/dart/ast/ast.dart:834:49)
#22 CodeGenerator.visitExpressionStatement (package:dev_compiler/src/analyzer/code_generator.dart:4098:23)
#23 ExpressionStatementImpl.accept (package:analyzer/src/dart/ast/ast.dart:4228:49)
#24 CodeGenerator._visitStatement (package:dev_compiler/src/analyzer/code_generator.dart:5814:18)
#25 MappedListIterable.elementAt (dart:_internal/iterable.dart:414:29)
#26 ListIterable.toList (dart:_internal/iterable.dart:219:19)
#27 CodeGenerator._visitStatementList (package:dev_compiler/src/analyzer/code_generator.dart:5821:41)
#28 CodeGenerator.visitBlockFunctionBody (package:dev_compiler/src/analyzer/code_generator.dart:3585:21)
#29 BlockFunctionBodyImpl.accept (package:analyzer/src/dart/ast/ast.dart:1181:49)
#30 CodeGenerator._emitFunctionScopedBody (package:dev_compiler/src/analyzer/code_generator.dart:2802:22)
#31 CodeGenerator._emitFunctionBody (package:dev_compiler/src/analyzer/code_generator.dart:2785:17)
#32 CodeGenerator._emitFunction (package:dev_compiler/src/analyzer/code_generator.dart:2769:11)
#33 CodeGenerator._emitArrowFunction (package:dev_compiler/src/analyzer/code_generator.dart:2724:13)
#34 CodeGenerator.visitFunctionExpression (package:dev_compiler/src/analyzer/code_generator.dart:2717:14)
#35 FunctionExpressionImpl.accept (package:analyzer/src/dart/ast/ast.dart:5360:49)
#36 CodeGenerator._visitExpression (package:dev_compiler/src/analyzer/code_generator.dart:5805:18)
#37 CodeGenerator._emitArgumentList (package:dev_compiler/src/analyzer/code_generator.dart:4052:18)
#38 CodeGenerator._emitFunctionCall (package:dev_compiler/src/analyzer/code_generator.dart:3880:16)
#39 CodeGenerator.visitMethodInvocation (package:dev_compiler/src/analyzer/code_generator.dart:3632:14)
#40 MethodInvocationImpl.accept (package:analyzer/src/dart/ast/ast.dart:7827:49)
#41 CodeGenerator.visitExpressionStatement (package:dev_compiler/src/analyzer/code_generator.dart:4098:23)
#42 ExpressionStatementImpl.accept (package:analyzer/src/dart/ast/ast.dart:4228:49)
#43 CodeGenerator._visitStatement (package:dev_compiler/src/analyzer/code_generator.dart:5814:18)
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#45 ListIterable.toList (dart:_internal/iterable.dart:219:19)
#46 CodeGenerator._visitStatementList (package:dev_compiler/src/analyzer/code_generator.dart:5821:41)
#47 CodeGenerator.visitBlockFunctionBody (package:dev_compiler/src/analyzer/code_generator.dart:3585:21)
#48 BlockFunctionBodyImpl.accept (package:analyzer/src/dart/ast/ast.dart:1181:49)
#49 CodeGenerator._emitFunctionScopedBody (package:dev_compiler/src/analyzer/code_generator.dart:2802:22)
#50 CodeGenerator._emitFunctionBody (package:dev_compiler/src/analyzer/code_generator.dart:2785:17)
#51 CodeGenerator._emitFunction (package:dev_compiler/src/analyzer/code_generator.dart:2769:11)
#52 CodeGenerator._emitArrowFunction (package:dev_compiler/src/analyzer/code_generator.dart:2724:13)
#53 CodeGenerator.visitFunctionExpression (package:dev_compiler/src/analyzer/code_generator.dart:2717:14)
#54 FunctionExpressionImpl.accept (package:analyzer/src/dart/ast/ast.dart:5360:49)
#55 CodeGenerator._visitExpression (package:dev_compiler/src/analyzer/code_generator.dart:5805:18)
#56 CodeGenerator._emitArgumentList (package:dev_compiler/src/analyzer/code_generator.dart:4052:18)
#57 CodeGenerator._emitFunctionCall (package:dev_compiler/src/analyzer/code_generator.dart:3880:16)
#58 CodeGenerator.visitMethodInvocation (package:dev_compiler/src/analyzer/code_generator.dart:3632:14)
#59 MethodInvocationImpl.accept (package:analyzer/src/dart/ast/ast.dart:7827:49)
#60 CodeGenerator.visitExpressionStatement (package:dev_compiler/src/analyzer/code_generator.dart:4098:23)
#61 ExpressionStatementImpl.accept (package:analyzer/src/dart/ast/ast.dart:4228:49)
#62 CodeGenerator._visitStatement (package:dev_compiler/src/analyzer/code_generator.dart:5814:18)
#63 MappedListIterable.elementAt (dart:_internal/iterable.dart:414:29)
#64 ListIterable.toList (dart:_internal/iterable.dart:219:19)
#65 CodeGenerator._visitStatementList (package:dev_compiler/src/analyzer/code_generator.dart:5821:41)
#66 CodeGenerator.visitBlockFunctionBody (package:dev_compiler/src/analyzer/code_generator.dart:3585:21)
#67 BlockFunctionBodyImpl.accept (package:analyzer/src/dart/ast/ast.dart:1181:49)
#68 CodeGenerator._emitFunctionScopedBody (package:dev_compiler/src/analyzer/code_generator.dart:2802:22)
#69 CodeGenerator._emitFunctionBody (package:dev_compiler/src/analyzer/code_generator.dart:2785:17)
#70 CodeGenerator._emitFunction (package:dev_compiler/src/analyzer/code_generator.dart:2769:11)
#71 CodeGenerator._emitFunctionExpression (package:dev_compiler/src/analyzer/code_generator.dart:2749:12)
#72 CodeGenerator.visitFunctionDeclaration (package:dev_compiler/src/analyzer/code_generator.dart:2611:14)
#73 FunctionDeclarationImpl.accept (package:analyzer/src/dart/ast/ast.dart:5197:49)
#74 CodeGenerator.visitCompilationUnit (package:dev_compiler/src/analyzer/code_generator.dart:602:30)
#75 List.forEach (dart:core/runtime/libarray.dart:82:8)
#76 CodeGenerator.compile (package:dev_compiler/src/analyzer/code_generator.dart:335:22)
#77 compileWithAnalyzer (package:dev_compiler/src/analyzer/module_compiler.dart:109:33)
#78 _compile (package:dev_compiler/src/analyzer/command.dart:151:16)
#79 compile (package:dev_compiler/src/analyzer/command.dart:56:18)
#80 compile (package:dev_compiler/src/compiler/shared_command.dart:360:18)
#81 _CompilerWorker.performRequest. (file:///tmp/tmpqIBfjJ/dart-2.1.0/dart/pkg/dev_compiler/bin/dartdevc.dart:50:36)
#82 _rootRun (dart:async/zone.dart:1124:13)
#83 _CustomZone.run (dart:async/zone.dart:1021:19)
#84 _runZoned (dart:async/zone.dart:1516:10)
#85 runZoned (dart:async/zone.dart:1463:12)
#86 _CompilerWorker.performRequest (file:///tmp/tmpqIBfjJ/dart-2.1.0/dart/pkg/dev_compiler/bin/dartdevc.dart:50:21)

#87 AsyncWorkerLoop.run. (package:bazel_worker/src/worker/async_worker_loop.dart:33:41)
#88 _rootRun (dart:async/zone.dart:1124:13)
#89 _CustomZone.run (dart:async/zone.dart:1021:19)
#90 _runZoned (dart:async/zone.dart:1516:10)
#91 runZoned (dart:async/zone.dart:1463:12)
#92 AsyncWorkerLoop.run (package:bazel_worker/src/worker/async_worker_loop.dart:33:26)

#93 main (file:///tmp/tmpqIBfjJ/dart-2.1.0/dart/pkg/dev_compiler/bin/dartdevc.dart:28:57)

#94 _startIsolate. (dart:isolate/runtime/libisolate_patch.dart:285:32)
#95 _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:171:12)

}

[SEVERE] build_web_compilers|entrypoint on test/model_test.dart (cached):

AssetNotFoundException: webdart_example|test/model_test.ddc.js
[SEVERE] Failed after 296ms
Serving `web` on http://localhost:8080
Serving `test` on http://localhost:8081
[INFO] Terminating. No further builds will be scheduled
[INFO] Builds finished. Safe to exit

Copied from original issue: dart-lang/sdk#35869

[vsmenon]

From @renatoathaydes on February 6, 2019 17:43

Hm... lloks like this is the problem:

[SEVERE] build_web_compilers|ddc on test/model_test.dartdevc.module (cached):
Error compiling dartdevc module:webdart_example|test/model_test.ddc.js

Why would the test file be compiled with build_web_compilers? Probably should just skip it, after all my tests are plain Dart tests, not web tests (no browser or anything like that).

[jakemac53]

Once you add build_web_compilers it will try to compile anything that looks like a web target to JS.

But, importing across top level dirs (with anything other than a package: uri) is not supported on the web.

You can manually include only your web directory by creating a build.yaml and doing something like this:

targets:
  $default:
    builders:
      build_web_compilers|entrypoint:
        generate_for:
          - web/**.dart

[renatoathaydes]

Where can I find documentation about handling these scenarios? And about this build_web_compilers|entrypoint thing?