1 files changed, 35 insertions, 3 deletions
diff --git a/spec/ruby/core/enumerator/rewind_spec.rb b/spec/ruby/core/enumerator/rewind_spec.rb
index e846f63c49..6ba0edf174 100644
--- a/spec/ruby/core/enumerator/rewind_spec.rb
+++ b/spec/ruby/core/enumerator/rewind_spec.rb
@@ -1,9 +1,41 @@
 require_relative '../../spec_helper'
-require_relative '../../shared/enumerator/rewind'
 require_relative 'fixtures/common'
 
 describe "Enumerator#rewind" do
-  it_behaves_like :enum_rewind, :rewind
+  before :each do
+    @enum = 1.upto(3)
+  end
+
+  it "resets the enumerator to its initial state" do
+    @enum.next.should == 1
+    @enum.next.should == 2
+    @enum.rewind
+    @enum.next.should == 1
+  end
+
+  it "returns self" do
+    @enum.rewind.should.equal? @enum
+  end
+
+  it "has no effect on a new enumerator" do
+    @enum.rewind
+    @enum.next.should == 1
+  end
+
+  it "has no effect if called multiple, consecutive times" do
+    @enum.next.should == 1
+    @enum.rewind
+    @enum.rewind
+    @enum.next.should == 1
+  end
+
+  it "works with peek to reset the position" do
+    @enum.next
+    @enum.next
+    @enum.rewind
+    @enum.next
+    @enum.peek.should == 2
+  end
 
   it "calls the enclosed object's rewind method if one exists" do
     obj = mock('rewinder')
@@ -17,7 +49,7 @@ describe "Enumerator#rewind" do
     obj = mock('rewinder')
     enum = obj.to_enum
     obj.should_receive(:each).at_most(1)
-    lambda { enum.rewind.should == enum }.should_not raise_error
+    enum.rewind.should == enum
   end
 end