[ruby-dev:51074] [Ruby master Bug#17494] ruby is hanged when using activesupport + rspec + rspec-parameterized

Issue #17494 has been updated by jeremyevans0 (Jeremy Evans).

Backport changed from 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN to 2.6: DONTNEED, 2.7: DONTNEED, 3.0: REQUIRED
Status changed from Open to Closed

This issue has been fixed in the master branch.  I bisected the fixing commit to commit:39a2ba5cc559900c30c3143da32446c2f20a7484.  This issue exists in Ruby 3.0 but not in Ruby 2.7 or 2.6, so if possible, this should be backported to 3.0.

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Bug #17494: ruby is hanged when using activesupport + rspec + rspec-parameterized
https://bugs.ruby-lang.org/issues/17494#change-92721

* Author: sue445 (Go Sueyoshi)
* Status: Closed
* Priority: Normal
* ruby -v: ruby 3.0.0p0
* Backport: 2.6: DONTNEED, 2.7: DONTNEED, 3.0: REQUIRED
----------------------------------------
# Example code
## Gemfile
```ruby
# frozen_string_literal: true

source "https://rubygems.org"

git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }

gem "activesupport", "6.1.0"
gem "rspec", "3.10.0"
gem "rspec-parameterized", "0.4.2"
```

## spec file
``` ruby
require "active_support/all"
require "rspec-parameterized"

describe "CLI" do
  subject do
    # Expected error, but actual hunged here
    cli.foo # <- hunged here
  end

  it { expect { subject }.to raise_error }
end

xdescribe "GitlabMrRelease::Project" do
  describe "#api_version" do
    using RSpec::Parameterized::TableSyntax

    where(:api_endpoint, :expected) do
      "http://example.com/api/v4/" | 4
    end

    with_them do
      # it { should eq expected }
    end
  end
end
```

all codes are here.

https://github.com/sue445/ruby_3_0_0_bug_report_20201231

# Expected
spec is successful (This is the behavior up to ruby 2.7.2)

# Actual
hunged at line 7





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