1 files changed, 42 insertions, 0 deletions
diff --git a/spec/rubyspec/core/io/lines_spec.rb b/spec/rubyspec/core/io/lines_spec.rb
new file mode 100644
index 0000000000..90ddc4e4cf
--- /dev/null
+++ b/spec/rubyspec/core/io/lines_spec.rb
@@ -0,0 +1,42 @@
+# -*- encoding: utf-8 -*-
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+
+describe "IO#lines" do
+  before :each do
+    @io = IOSpecs.io_fixture "lines.txt"
+  end
+
+  after :each do
+    @io.close if @io
+  end
+
+  it "returns an Enumerator" do
+    @io.lines.should be_an_instance_of(Enumerator)
+  end
+
+  describe "when no block is given" do
+    it "returns an Enumerator" do
+      @io.lines.should be_an_instance_of(Enumerator)
+    end
+
+    describe "returned Enumerator" do
+      describe "size" do
+        it "should return nil" do
+          @io.lines.size.should == nil
+        end
+      end
+    end
+  end
+
+  it "returns a line when accessed" do
+    enum = @io.lines
+    enum.first.should == IOSpecs.lines[0]
+  end
+
+  it "yields each line to the passed block" do
+    ScratchPad.record []
+    @io.lines { |s| ScratchPad << s }
+    ScratchPad.recorded.should == IOSpecs.lines
+  end
+end