This changes "test/rubygems/test_case.rb" to "test/rubygems/helper.rb",
and "test/rubygems/test_utilities.rb" to "test/rubygems/utilities.rb".
The two files are a helper for tests, not test files. However, a file
starting with "test_" prefix is handled as a test file directly loaded
by test-unit because Rakefile specifies:
```
t.test_files = FileList['test/**/test_*.rb']
```
Directly loading test/rubygems/test_utilities.rb caused "uninitialized
constant Gem::TestCase". This issue was fixed by
59c6820971, but the fix caused a
"circular require" warning because test_utilities.rb and test_case.rb
are now requiring each other.
Anyway, adding "test_" prefix to a test helper file is confusing, so
this changeset reverts the fix and solve the issue by renaming them.
https://github.com/rubygems/rubygems/commit/6460e018df
* Fix gem pristine not accounting for user installed gems. Pull request
#2914 by Luis Sagastume.
* Refactor keyword argument test for Ruby 2.7. Pull request #2947 by
SHIBATA Hiroshi.
* Fix errors at frozen Gem::Version. Pull request #2949 by Nobuyoshi
Nakada.
* Remove taint usage on Ruby 2.7+. Pull request #2951 by Jeremy Evans.
* Check Manifest.txt is up to date. Pull request #2953 by David Rodríguez.
* Clarify symlink conditionals in tests. Pull request #2962 by David
Rodríguez.
* Update command line parsing to work under ps. Pull request #2966 by
David Rodríguez.
* Properly test `Gem::Specifications.stub_for`. Pull request #2970 by
David Rodríguez.
* Fix Gem::LOADED_SPECS_MUTEX handling for recursive locking. Pull request
#2985 by MSP-Greg.
Takuya Noguchi
Hiroshi SHIBATA
David Rodríguez
Yusuke Endoh
bronzdoc