1 files changed, 38 insertions, 0 deletions
diff --git a/spec/rubyspec/core/enumerator/rewind_spec.rb b/spec/rubyspec/core/enumerator/rewind_spec.rb
new file mode 100644
index 0000000000..666136d74a
--- /dev/null
+++ b/spec/rubyspec/core/enumerator/rewind_spec.rb
@@ -0,0 +1,38 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../../../shared/enumerator/rewind', __FILE__)
+require File.expand_path('../fixtures/common', __FILE__)
+
+describe "Enumerator#rewind" do
+  it_behaves_like(:enum_rewind, :rewind)
+
+  it "calls the enclosed object's rewind method if one exists" do
+    obj = mock('rewinder')
+    enum = obj.to_enum
+    obj.should_receive(:each).at_most(1)
+    obj.should_receive(:rewind)
+    enum.rewind
+  end
+
+  it "does nothing if the object doesn't have a #rewind method" do
+    obj = mock('rewinder')
+    enum = obj.to_enum
+    obj.should_receive(:each).at_most(1)
+    lambda { enum.rewind.should == enum }.should_not raise_error
+  end
+end
+
+describe "Enumerator#rewind" do
+  before :each do
+    ScratchPad.record []
+    @enum = EnumeratorSpecs::Feed.new.to_enum(:each)
+  end
+
+  it "clears a pending #feed value" do
+    @enum.next
+    @enum.feed :a
+    @enum.rewind
+    @enum.next
+    @enum.next
+    ScratchPad.recorded.should == [nil]
+  end
+end