Merge RubyGems-2.7.5 from upstream.

  Please see its details: http://blog.rubygems.org/2018/02/06/2.7.5-released.html

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62244 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 11 insertions, 0 deletions

diff --git a/test/rubygems/test_gem_version.rb b/test/rubygems/test_gem_version.rb
index 56c818663e..792ad5f084 100644
--- a/test/rubygems/test_gem_version.rb
+++ b/test/rubygems/test_gem_version.rb
@@ -2,6 +2,8 @@
 require 'rubygems/test_case'
 require "rubygems/version"
 
+require "minitest/benchmark"
+
 class TestGemVersion < Gem::TestCase
 
   class V < ::Gem::Version
@@ -102,6 +104,15 @@ class TestGemVersion < Gem::TestCase
     end
   end
 
+  def bench_anchored_version_pattern
+    assert_performance_linear 0.5 do |count|
+      version_string = count.times.map {|i| "0" * i.succ }.join(".") << "."
+      version_string =~ Gem::Version::ANCHORED_VERSION_PATTERN
+    end
+  rescue RegexpError
+    skip "It fails to allocate the memory for regex pattern of Gem::Version::ANCHORED_VERSION_PATTERN"
+  end
+
   def test_empty_version
     ["", "   ", " "].each do |empty|
       assert_equal "0", Gem::Version.new(empty).version