1 files changed, 43 insertions, 0 deletions
diff --git a/spec/ruby/core/io/bytes_spec.rb b/spec/ruby/core/io/bytes_spec.rb
new file mode 100644
index 0000000000..3eb51883c4
--- /dev/null
+++ b/spec/ruby/core/io/bytes_spec.rb
@@ -0,0 +1,43 @@
+# -*- encoding: utf-8 -*-
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+
+describe "IO#bytes" do
+  before :each do
+    @io = IOSpecs.io_fixture "lines.txt"
+  end
+
+  after :each do
+    @io.close unless @io.closed?
+  end
+
+  it "returns an enumerator of the next bytes from the stream" do
+    enum = @io.bytes
+    enum.should be_an_instance_of(Enumerator)
+    @io.readline.should == "Voici la ligne une.\n"
+    enum.first(5).should == [81, 117, 105, 32, 195]
+  end
+
+  it "yields each byte" do
+    count = 0
+    ScratchPad.record []
+    @io.each_byte do |byte|
+      ScratchPad << byte
+      break if 4 < count += 1
+    end
+
+    ScratchPad.recorded.should == [86, 111, 105, 99, 105]
+  end
+
+  it "raises an IOError on closed stream" do
+    enum = IOSpecs.closed_io.bytes
+    lambda { enum.first }.should raise_error(IOError)
+  end
+
+  it "raises an IOError on an enumerator for a stream that has been closed" do
+    enum = @io.bytes
+    enum.first.should == 86
+    @io.close
+    lambda { enum.first }.should raise_error(IOError)
+  end
+end