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Bug #20744
closedsyntax error found (SyntaxError) `UTF-8 mixed within US-ASCII source` reported Ruby with Prism parser
ruby -v:
ruby 3.4.0dev (2024-09-15T01:06:11Z master 532af89e3b) +PRISM [x86_64-linux]
Description
I'm reporting this issue based on Rails Nightly CI against Ruby 3.4.0dev.
https://buildkite.com/rails/rails-nightly/builds/1023#0191ed31-1d77-4705-ab65-cecab76e2c88/1175-1209
I have not able to create a minimum test case without Rails yet.
Steps to reproduce¶
git clone https://github.com/rails/rails
cd rails/actionview
bin/test test/template/template_test.rb:278
Expected behavior¶
It should pass as it Runs parser.y parser
$ RUBYOPT=--parser=parse.y bin/test test/template/template_test.rb:278
/home/yahonda/.gem/ruby/3.4.0+0/gems/json-2.7.1/lib/json/common.rb:3: warning: ostruct was loaded from the standard library, but will no longer be part of the default gems starting from Ruby 3.5.0.
You can add ostruct to your Gemfile or gemspec to silence this warning.
Running 36 tests in a single process (parallelization threshold is 50)
Run options: --seed 61197
# Running:
.
Finished in 0.037914s, 26.3756 runs/s, 79.1267 assertions/s.
1 runs, 3 assertions, 0 failures, 0 errors, 0 skips
$
Actual behavior¶
It raises the following syntax error found (SyntaxError)
$ bin/test test/template/template_test.rb:278
/home/yahonda/.rbenv/versions/trunk/lib/ruby/3.4.0+0/bundled_gems.rb:79:in 'Kernel.require':
/home/yahonda/src/github.com/rails/rails/actionview/test/template/template_test.rb:278: syntax error found (SyntaxError)
276 | @template = new_template("<%# encoding: ISO-8859-1 %>\n<%# locals: (message: 'Hi!') %>\nhello \xFCmlat\n<%= message %>", virtual_path: nil)
277 | assert_equal Encoding::UTF_8, render.encoding
> 278 | assert_match(/hello \u{fc}mlat\nHi!/, render)
| ^~ UTF-8 mixed within US-ASCII source
279 | end
280 | end
from /home/yahonda/.rbenv/versions/trunk/lib/ruby/3.4.0+0/bundled_gems.rb:79:in 'block (2 levels) in Kernel#replace_require'
from /home/yahonda/src/github.com/rails/rails/railties/lib/rails/test_unit/runner.rb:62:in 'block in Rails::TestUnit::Runner.load_tests'
from <internal:array>:42:in 'Array#each'
from /home/yahonda/src/github.com/rails/rails/railties/lib/rails/test_unit/runner.rb:60:in 'Rails::TestUnit::Runner.load_tests'
from /home/yahonda/src/github.com/rails/rails/railties/lib/rails/test_unit/runner.rb:52:in 'Rails::TestUnit::Runner.run'
from /home/yahonda/src/github.com/rails/rails/tools/test.rb:18:in '<top (required)>'
from bin/test:5:in 'Kernel#require_relative'
from bin/test:5:in '<main>'
$
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