test_rubyoptions.rb: VERSION_PATTERN

* test/ruby/test_rubyoptions.rb (VERSION_PATTERN): make the
  pattern at loading, and escape regexp meta characters.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54107 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 6 deletions

diff --git a/test/ruby/test_rubyoptions.rb b/test/ruby/test_rubyoptions.rb
index ba23604bb6..1705839bd7 100644
--- a/test/ruby/test_rubyoptions.rb
+++ b/test/ruby/test_rubyoptions.rb
@@ -84,18 +84,20 @@ class TestRubyOptions < Test::Unit::TestCase
                       "", %w(true), [])
   end
 
-  private def version_match
+  q = Regexp.method(:quote)
+  VERSION_PATTERN =
     case RUBY_ENGINE
     when 'jruby'
-      /^jruby #{RUBY_ENGINE_VERSION} \(#{RUBY_VERSION}\).*? \[#{RbConfig::CONFIG["host_os"]}-#{RbConfig::CONFIG["host_cpu"]}\]$/
+      /^jruby #{q[RUBY_ENGINE_VERSION]} \(#{q[RUBY_VERSION]}\).*? \[#{
+        q[RbConfig::CONFIG["host_os"]]}-#{q[RbConfig::CONFIG["host_cpu"]]}\]$/
     else
-      /^ruby #{RUBY_VERSION}(?:[p ]|dev|rc).*? \[#{RUBY_PLATFORM}\]$/
+      /^ruby #{q[RUBY_VERSION]}(?:[p ]|dev|rc).*? \[#{q[RUBY_PLATFORM]}\]$/
     end
-  end
+  private_constant :VERSION_PATTERN
 
   def test_verbose
     assert_in_out_err(["-vve", ""]) do |r, e|
-      assert_match(version_match, r[0])
+      assert_match(VERSION_PATTERN, r[0])
       assert_equal(RUBY_DESCRIPTION, r[0])
       assert_equal([], e)
     end
@@ -151,7 +153,7 @@ class TestRubyOptions < Test::Unit::TestCase
 
   def test_version
     assert_in_out_err(%w(--version)) do |r, e|
-      assert_match(version_match, r[0])
+      assert_match(VERSION_PATTERN, r[0])
       assert_equal(RUBY_DESCRIPTION, r[0])
       assert_equal([], e)
     end