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Question

My goldens fail on GithubActions, flutter test run on Ubuntu image, since MacOS renders UI a bit differently. We’re talking 0% < diff < 2%.

So I decided to generate the goldens on Ubuntu image, on my local machine, so that the tests pass.

Docker to the rescue! I’ve attached my Dockerfile and a Makefile.

tl;dr

Dockerfile downloads the flutter sdk and sets up env.
Makefile runs the docker container and then runs the test inside it

Fun part:
I’m trying to mount my existing code dir, .pub_cache dir into the Docker container to avoid pulling the code and running flutter pub get

But my tests are failing!

Note: This test pass when I run it on my local machine

make test_app test/common/cached_image_view_test.dart

developer@be8993ac66b3:~/wildr_flutter$ flutter test test/community/join_community_page_test.dart 
00:37 +0 -1: loading /home/developer/wildr_flutter/test/community/join_community_page_test.dart [E]                                                            
  Error: the Dart compiler exited unexpectedly.
  package:flutter_tools/src/base/common.dart 10:3  throwToolExit
  package:flutter_tools/src/compile.dart 885:13    DefaultResidentCompiler._compile.<fn>
  dart:async/zone.dart 1391:47                     _rootRun
  dart:async/zone.dart 1301:19                     _CustomZone.run
  dart:async/zone.dart 1209:7                      _CustomZone.runGuarded
  dart:async/stream_impl.dart 392:13               _BufferingStreamSubscription._sendDone.sendDone
  dart:async/stream_impl.dart 402:7                _BufferingStreamSubscription._sendDone
  dart:async/stream_impl.dart 291:7                _BufferingStreamSubscription._close
  dart:async/stream_transformers.dart 87:11        _SinkTransformerStreamSubscription._close
  dart:async/stream_transformers.dart 21:11        _EventSinkWrapper.close
  dart:convert/string_conversion.dart 241:11       _StringAdapterSink.close
  dart:convert/line_splitter.dart 141:11           _LineSplitterSink.close
  dart:async/stream_transformers.dart 132:24       _SinkTransformerStreamSubscription._handleDone
  dart:async/zone.dart 1391:47                     _rootRun
  dart:async/zone.dart 1301:19                     _CustomZone.run
  dart:async/zone.dart 1209:7                      _CustomZone.runGuarded
  dart:async/stream_impl.dart 392:13               _BufferingStreamSubscription._sendDone.sendDone
  dart:async/stream_impl.dart 402:7                _BufferingStreamSubscription._sendDone
  dart:async/stream_impl.dart 291:7                _BufferingStreamSubscription._close
  dart:async/stream_transformers.dart 87:11        _SinkTransformerStreamSubscription._close
  dart:async/stream_transformers.dart 21:11        _EventSinkWrapper.close
  dart:convert/string_conversion.dart 241:11       _StringAdapterSink.close
  dart:convert/string_conversion.dart 295:20       _Utf8ConversionSink.close
  dart:convert/chunked_conversion.dart 78:18       _ConverterStreamEventSink.close
  dart:async/stream_transformers.dart 132:24       _SinkTransformerStreamSubscription._handleDone
  dart:async/zone.dart 1391:47                     _rootRun
  dart:async/zone.dart 1301:19                     _CustomZone.run
  dart:async/zone.dart 1209:7                      _CustomZone.runGuarded
  dart:async/stream_impl.dart 392:13               _BufferingStreamSubscription._sendDone.sendDone
  dart:async/stream_impl.dart 402:7                _BufferingStreamSubscription._sendDone
  dart:async/stream_impl.dart 291:7                _BufferingStreamSubscription._close
  dart:async/stream_controller.dart 792:19         _SyncStreamControllerDispatch._sendDone
  dart:async/stream_controller.dart 647:7          _StreamController._closeUnchecked
  dart:async/stream_controller.dart 640:5          _StreamController.close
  dart:io-patch/socket_patch.dart 2454:21          _Socket._onData
  dart:async/zone.dart 1415:13                     _rootRunUnary
  dart:async/zone.dart 1308:19                     _CustomZone.runUnary
  dart:async/zone.dart 1217:7                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 339:11               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 271:7                _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 784:19         _SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 658:7          _StreamController._add
  dart:async/stream_controller.dart 606:5          _StreamController.add
  dart:io-patch/socket_patch.dart 1943:35          new _RawSocket.<fn>
  dart:io-patch/socket_patch.dart 1372:18          _NativeSocket.issueReadEvent.issue
  dart:async/schedule_microtask.dart 40:21         _microtaskLoop
  dart:async/schedule_microtask.dart 49:5          _startMicrotaskLoop
  dart:isolate-patch/isolate_patch.dart 118:13     _runPendingImmediateCallback
  dart:isolate-patch/isolate_patch.dart 185:5      _RawReceivePort._handleMessage
  
  Failed to load "/home/developer/wildr_flutter/test/community/join_community_page_test.dart": Compilation failed for testPath=/home/developer/wildr_flutter/test/community/join_community_page_test.dart

To run this test again: /home/developer/flutter/bin/cache/dart-sdk/bin/dart test /home/developer/wildr_flutter/test/community/join_community_page_test.dart -p vm --plain-name 'loading /home/developer/wildr_flutter/test/community/join_community_page_test.dart'

Dockerfile

# github actions ubuntu-latest is 22.04
FROM ubuntu:22.04

# Prerequisites
ARG DEBIAN_FRONTEND=noninteractive
RUN apt update && apt install -y curl git unzip xz-utils zip libglu1-mesa openjdk-11-jdk wget
# Set up new user
RUN useradd -ms /bin/bash developer
USER developer
WORKDIR /home/developer

# flutter_version=$(flutter --version | awk 'NR==1{print $2}')
ARG flutter_version

RUN git clone https://github.com/flutter/flutter.git -b ${flutter_version}

ENV PATH "$PATH:/home/developer/flutter/bin"


# Run basic check to download Dark SDK
RUN flutter doctor

Here’s my `Makefile`

# set the path of the flutter installation on the local machine to share it with the docker container
flutter_dir = $$(which flutter)

# set the path of the current project directory on the local machine to share it with the docker container
wildr_flutter_dir = $$(git rev-parse --show-toplevel)/wildr_flutter

# set the flutter version to use the same in the docker container
flutter_version = $$(flutter --version | grep -m 1 -o '[0-9]*.[0-9]*.[0-9]*')

# Base command to run the docker container
docker_build_image := docker build --build-arg flutter_version=$(flutter_version) -t docker_tests $(wildr_flutter_dir)/docker/
docker_run_image_docker_tests = docker run -it -v $(wildr_flutter_dir):/home/developer/wildr_flutter  -v ~/.pub-cache:/home/developer/.pub-cache -e PUB_CACHE="/home/developer/.pub-cache" docker_tests

# get every argument after the make command
RUN_ARGS := $(wordlist 2,$(words $(MAKECMDGOALS)),$(MAKECMDGOALS))

# check if the update-goldens option is given
ifeq ($(findstring update-goldens,$(RUN_ARGS)),update-goldens)
 update-goldens="--update-goldens"
else
 update-goldens=""
endif

# check if the coverage option is given
ifeq ($(findstring coverage,$(RUN_ARGS)),coverage)
 coverage="--coverage"
else
 coverage=""
endif

# We check if a testPath option is given
ifeq ($(filter test/%.dart,$(RUN_ARGS)),)
 testPath=""
else
 testPath="$(filter test/%.dart,$(RUN_ARGS))"
endif

test_app: CMD = cd wildr_flutter && 
                pwd && 
                flutter test $(testPath) $(update-goldens) $(coverage)

test_app: 
    (cd $(wildr_flutter_dir) && $(docker_build_image) && $(docker_run_image_docker_tests) /bin/sh -c "$(CMD)")

run_bash: 
    (cd $(wildr_flutter_dir) && $(docker_build_image) && $(docker_run_image_docker_tests) bash)

I tried manually running flutter pub get in the container. No luck :/

Thiết kế website giá rẻ

Danh mục

Flutter Test > (ubuntu) Docker container > Mount volumes: (existing code) and (.pub_cache)

But my tests are failing!

Dockerfile

Here’s my `Makefile`

Danh mục

But my tests are failing!

Dockerfile

Here’s my Makefile

Here’s my `Makefile`