[dart-misc] dart coverage tool

Discussion:

Daniel Davidson

2016-06-02 18:18:33 UTC

I'm trying to use the coverage <https://pub.dartlang.org/packages/coverage>
tool and it fails with the below error.
I may not be using correctly... I first run the script with a port and the
observatory flag and then the coverage collect script.

Also, why does the coverage package use dart_coveralls
<https://github.com/dart-lang/coverage/blob/master/tool/travis.sh#L24> -
which says is no longer supported instead of its own coverage library?

dart --observe=12345 test/runner.dart

pub global run coverage:collect_coverage --port=12345 -o coverage.json
--resume-isolates
JSON-RPC error -32601 (method not found): Method not found
package:json_rpc_2/src/client.dart 99 Client.sendRequest
package:json_rpc_2/src/peer.dart 94 Peer.sendRequest
package:coverage/src/vm_service_client.dart 198
VMServiceClient.getCoverage.<async>
===== asynchronous gap ===========================
dart:async Future.Future.microtask
package:coverage/src/vm_service_client.dart VMServiceClient.getCoverage
package:coverage/src/collect.dart 41 _getAllCoverage.<async>
dart:async _SyncCompleter.complete
package:vm_service_client/src/isolate.dart 232 VMIsolateRef.load.<async>
dart:async _SyncCompleter.complete
package:vm_service_client/src/scope.dart 51 Scope.sendRequest.<async>
dart:async _SyncCompleter.complete
package:json_rpc_2/src/client.dart 178
Client._handleSingleResponse
package:json_rpc_2/src/client.dart 168 Client._handleResponse
dart:async _StreamController.add
package:json_rpc_2/src/peer.dart 117 Peer.listen.<fn>
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
package:coverage/src/collect.dart _getAllCoverage
package:coverage/src/collect.dart 26 collect.<async>
dart:async _SyncCompleter.complete
package:coverage/src/util.dart 39 retry.<async>.<fn>.<async>
dart:async _SyncCompleter.complete
package:coverage/src/vm_service_client.dart 90
VMServiceClient.connect.<async>
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
package:coverage/src/collect.dart collect
http://localhost:45261/collect_coverage.dart 21 main.<async>.<fn>.<async>
===== asynchronous gap ===========================
package:stack_trace Chain.capture
http://localhost:45261/collect_coverage.dart 20 main.<async>

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Don Olmstead

2016-06-02 18:25:45 UTC

Permalink

https://github.com/dart-lang/coverage/issues/107

Post by Daniel Davidson
I'm trying to use the coverage
<https://pub.dartlang.org/packages/coverage> tool and it fails with the
below error.
I may not be using correctly... I first run the script with a port and the
observatory flag and then the coverage collect script.
Also, why does the coverage package use dart_coveralls
<https://github.com/dart-lang/coverage/blob/master/tool/travis.sh#L24> -
which says is no longer supported instead of its own coverage library?
dart --observe=12345 test/runner.dart
pub global run coverage:collect_coverage --port=12345 -o coverage.json
--resume-isolates
JSON-RPC error -32601 (method not found): Method not found
package:json_rpc_2/src/client.dart 99 Client.sendRequest
package:json_rpc_2/src/peer.dart 94 Peer.sendRequest
package:coverage/src/vm_service_client.dart 198
VMServiceClient.getCoverage.<async>
===== asynchronous gap ===========================
dart:async Future.Future.microtask
package:coverage/src/vm_service_client.dart
VMServiceClient.getCoverage
package:coverage/src/collect.dart 41 _getAllCoverage.<async>
dart:async _SyncCompleter.complete
package:vm_service_client/src/isolate.dart 232 VMIsolateRef.load.<async>
dart:async _SyncCompleter.complete
package:vm_service_client/src/scope.dart 51 Scope.sendRequest.<async>
dart:async _SyncCompleter.complete
package:json_rpc_2/src/client.dart 178
Client._handleSingleResponse
package:json_rpc_2/src/client.dart 168 Client._handleResponse
dart:async _StreamController.add
package:json_rpc_2/src/peer.dart 117 Peer.listen.<fn>
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
package:coverage/src/collect.dart _getAllCoverage
package:coverage/src/collect.dart 26 collect.<async>
dart:async _SyncCompleter.complete
package:coverage/src/util.dart 39 retry.<async>.<fn>.<async>
dart:async _SyncCompleter.complete
package:coverage/src/vm_service_client.dart 90
VMServiceClient.connect.<async>
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
package:coverage/src/collect.dart collect
http://localhost:45261/collect_coverage.dart 21 main.<async>.<fn>.<async>
===== asynchronous gap ===========================
package:stack_trace Chain.capture
http://localhost:45261/collect_coverage.dart 20 main.<async>
--
For other discussions, see https://groups.google.com/a/dartlang.org/
For HOWTO questions, visit http://stackoverflow.com/tags/dart
To file a bug report or feature request, go to http://www.dartbug.com/new
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'Chris Bracken' via Dart Misc

2016-06-02 18:35:42 UTC

Permalink

I've just pushed v0.7.4 <https://pub.dartlang.org/packages/coverage> of
package coverage, which includes support for Dart SDK 1.16.0 and above.

In Dart SDK 1.16.0 the old coverage APIs were removed from the VM service
and replaced with a new implementation which is now an officially 'stable'
API. The coverage package was originally built to work against JSON emitted
by the (now-eliminated) --coverage-dir VM flag, then later over close to 14
revisions of the VM protocol and/or APIs. Things should be a lot more
stable now that the API is official.

With the elimination of the old APIs and the --coverage-dir VM flag, the
JSON format is basically a historical artifact. The latest version includes
a shim to return that format for existing users who require
backward-compatibility, but we'll be deprecating it soon and providing a
managed transition to a more straightforward 'all-in-one' tool, and
eventually eliminating the JSON support.

Cheers,
Chris

Daniel Davidson

2016-06-02 20:36:29 UTC

Permalink

Chris,

Thanks! Should the failed build reported by travis be a concern?

Post by 'Chris Bracken' via Dart Misc
I've just pushed v0.7.4 <https://pub.dartlang.org/packages/coverage> of
package coverage, which includes support for Dart SDK 1.16.0 and above.
In Dart SDK 1.16.0 the old coverage APIs were removed from the VM service
and replaced with a new implementation which is now an officially 'stable'
API. The coverage package was originally built to work against JSON emitted
by the (now-eliminated) --coverage-dir VM flag, then later over close to 14
revisions of the VM protocol and/or APIs. Things should be a lot more
stable now that the API is official.
With the elimination of the old APIs and the --coverage-dir VM flag, the
JSON format is basically a historical artifact. The latest version includes
a shim to return that format for existing users who require
backward-compatibility, but we'll be deprecating it soon and providing a
managed transition to a more straightforward 'all-in-one' tool, and
eventually eliminating the JSON support.
Cheers,
Chris

Post by Daniel Davidson
I'm trying to use the coverage
<https://pub.dartlang.org/packages/coverage> tool and it fails with the
below error.
I may not be using correctly... I first run the script with a port and
the observatory flag and then the coverage collect script.
Also, why does the coverage package use dart_coveralls
<https://github.com/dart-lang/coverage/blob/master/tool/travis.sh#L24> -
which says is no longer supported instead of its own coverage library?
dart --observe=12345 test/runner.dart
pub global run coverage:collect_coverage --port=12345 -o coverage.json
--resume-isolates
JSON-RPC error -32601 (method not found): Method not found
package:json_rpc_2/src/client.dart 99 Client.sendRequest
package:json_rpc_2/src/peer.dart 94 Peer.sendRequest
package:coverage/src/vm_service_client.dart 198
VMServiceClient.getCoverage.<async>
===== asynchronous gap ===========================
dart:async Future.Future.microtask
package:coverage/src/vm_service_client.dart
VMServiceClient.getCoverage
package:coverage/src/collect.dart 41 _getAllCoverage.<async>
dart:async _SyncCompleter.complete
package:vm_service_client/src/isolate.dart 232 VMIsolateRef.load.<async>
dart:async _SyncCompleter.complete
package:vm_service_client/src/scope.dart 51 Scope.sendRequest.<async>
dart:async _SyncCompleter.complete
package:json_rpc_2/src/client.dart 178
Client._handleSingleResponse
package:json_rpc_2/src/client.dart 168 Client._handleResponse
dart:async _StreamController.add
package:json_rpc_2/src/peer.dart 117 Peer.listen.<fn>
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
package:coverage/src/collect.dart _getAllCoverage
package:coverage/src/collect.dart 26 collect.<async>
dart:async _SyncCompleter.complete
package:coverage/src/util.dart 39
retry.<async>.<fn>.<async>
dart:async _SyncCompleter.complete
package:coverage/src/vm_service_client.dart 90
VMServiceClient.connect.<async>
===== asynchronous gap ===========================
dart:async _asyncThenWrapperHelper
package:coverage/src/collect.dart collect
http://localhost:45261/collect_coverage.dart 21
main.<async>.<fn>.<async>
===== asynchronous gap ===========================
package:stack_trace Chain.capture
http://localhost:45261/collect_coverage.dart 20 main.<async>
--
For other discussions, see https://groups.google.com/a/dartlang.org/
For HOWTO questions, visit http://stackoverflow.com/tags/dart
To file a bug report or feature request, go to http://www.dartbug.com/new
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