1 files changed, 16 insertions, 0 deletions
diff --git a/test/ruby/test_enum.rb b/test/ruby/test_enum.rb
index b0c43b9a7f..7503e06272 100644
--- a/test/ruby/test_enum.rb
+++ b/test/ruby/test_enum.rb
@@ -234,6 +234,8 @@ class TestEnumerable < Test::Unit::TestCase
     assert_equal(24, @obj.inject(2) {|z, x| z * x })
     assert_equal(24, assert_warning(/given block not used/) {@obj.inject(2, :*) {|z, x| z * x }})
     assert_equal(nil, @empty.inject() {9})
+
+    assert_raise(ArgumentError) {@obj.inject}
   end
 
   FIXNUM_MIN = RbConfig::LIMITS['FIXNUM_MIN']
@@ -841,6 +843,8 @@ class TestEnumerable < Test::Unit::TestCase
   end
 
   def test_callcc
+    omit 'requires callcc support' unless respond_to?(:callcc)
+
     assert_raise(RuntimeError) do
       c = nil
       @obj.sort_by {|x| callcc {|c2| c ||= c2 }; x }
@@ -1332,4 +1336,16 @@ class TestEnumerable < Test::Unit::TestCase
     assert_equal([], @obj.filter_map { nil })
     assert_instance_of(Enumerator, @obj.filter_map)
   end
+
+  def test_ruby_svar
+    klass = Class.new do
+      include Enumerable
+      def each
+        %w(bar baz).each{|e| yield e}
+      end
+    end
+    svars = []
+    klass.new.grep(/(b.)/) { svars << $1 }
+    assert_equal(["ba", "ba"], svars)
+  end
 end