diff options
Diffstat (limited to 'spec/rubyspec/core/io/bytes_spec.rb')
-rw-r--r-- | spec/rubyspec/core/io/bytes_spec.rb | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/spec/rubyspec/core/io/bytes_spec.rb b/spec/rubyspec/core/io/bytes_spec.rb new file mode 100644 index 0000000000..3eb51883c4 --- /dev/null +++ b/spec/rubyspec/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 |