When running XCTest using GitLab’s CI, the job may fail with the following error output.
/Library/Ruby/Gems/2.6.0/gems/xcpretty-0.3.0/lib/xcpretty/parser.rb:434:in `===': invalid byte sequence in US-ASCII (ArgumentError)
from /Library/Ruby/Gems/2.6.0/gems/xcpretty-0.3.0/lib/xcpretty/parser.rb:434:in `update_test_state'
from /Library/Ruby/Gems/2.6.0/gems/xcpretty-0.3.0/lib/xcpretty/parser.rb:307:in `parse'
from /Library/Ruby/Gems/2.6.0/gems/xcpretty-0.3.0/lib/xcpretty/formatters/formatter.rb:88:in `pretty_format'
from /Library/Ruby/Gems/2.6.0/gems/xcpretty-0.3.0/lib/xcpretty/printer.rb:19:in `pretty_print'
from /Library/Ruby/Gems/2.6.0/gems/xcpretty-0.3.0/bin/xcpretty:84:in `block in <top (required)>'
from /Library/Ruby/Gems/2.6.0/gems/xcpretty-0.3.0/bin/xcpretty:83:in `each_line'
from /Library/Ruby/Gems/2.6.0/gems/xcpretty-0.3.0/bin/xcpretty:83:in `<top (required)>'
from /usr/local/bin/xcpretty:23:in `load'
from /usr/local/bin/xcpretty:23:in `<main>'
2022-06-28 19:15:17.149 xcodebuild[28965:188047] NSFileHandle couldn't write. Exception: *** -[_NSStdIOFileHandle writeData:]: Broken pipeThis article explains how to solve this problem.
TOC
Error Cause
This error is caused by a string in the log output by xcodebuild that xcpretty cannot process, xcpretty crashed and xcodebuild to be unable to output the log.
Solution
You can solve this problem by correctly setting the locale of gitlab-runner. Do as follows.
STEP
Open the ~/Library/LaunchAgents/gitlab-runner.plist file.
STEP
Add the EnvironmentVariables as follows.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<!-- 省略 -->
<key>EnvironmentVariables</key>
<dict>
<key>LC_ALL</key>
<string>en_US.UTF-8</string>
</dict>
</dict>STEP
Reboot your machine, or relaunch gitlab-runner as follows.
gitlab-runner stop
gitlab-runner start
