diff options
| -rw-r--r-- | activesupport/lib/active_support/core_ext/regexp.rb | 2 | ||||
| -rw-r--r-- | activesupport/test/core_ext/regexp_ext_test.rb | 12 |
2 files changed, 8 insertions, 6 deletions
diff --git a/activesupport/lib/active_support/core_ext/regexp.rb b/activesupport/lib/active_support/core_ext/regexp.rb index 1a04c70d87..95d06ee6ee 100644 --- a/activesupport/lib/active_support/core_ext/regexp.rb +++ b/activesupport/lib/active_support/core_ext/regexp.rb @@ -9,6 +9,8 @@ class Regexp #:nodoc: class << self def optionalize(pattern) + return pattern if pattern == "" + case unoptionalize(pattern) when /\A(.|\(.*\))\Z/ then "#{pattern}?" else "(?:#{pattern})?" diff --git a/activesupport/test/core_ext/regexp_ext_test.rb b/activesupport/test/core_ext/regexp_ext_test.rb index f71099856d..be06a597a8 100644 --- a/activesupport/test/core_ext/regexp_ext_test.rb +++ b/activesupport/test/core_ext/regexp_ext_test.rb @@ -13,14 +13,14 @@ class RegexpExtAccessTests < Test::Unit::TestCase end def test_optionalize - assert "a?", Regexp.optionalize("a") - assert "(?:foo)?", Regexp.optionalize("foo") - assert "", Regexp.optionalize("") + assert_equal "a?", Regexp.optionalize("a") + assert_equal "(?:foo)?", Regexp.optionalize("foo") + assert_equal "", Regexp.optionalize("") end def test_unoptionalize - assert "a", Regexp.unoptionalize("a?") - assert "foo", Regexp.unoptionalize("(?:foo)") - assert "", Regexp.unoptionalize("") + assert_equal "a", Regexp.unoptionalize("a?") + assert_equal "foo", Regexp.unoptionalize("(?:foo)?") + assert_equal "", Regexp.unoptionalize("") end end
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