diff options
Diffstat (limited to 'spec/rubyspec/core/io/rewind_spec.rb')
| -rw-r--r-- | spec/rubyspec/core/io/rewind_spec.rb | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/spec/rubyspec/core/io/rewind_spec.rb b/spec/rubyspec/core/io/rewind_spec.rb new file mode 100644 index 0000000000..ecf8a71891 --- /dev/null +++ b/spec/rubyspec/core/io/rewind_spec.rb @@ -0,0 +1,38 @@ +# -*- encoding: utf-8 -*- +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "IO#rewind" do + before :each do + @io = IOSpecs.io_fixture "lines.txt" + end + + after :each do + @io.close unless @io.closed? + end + + it "positions the instance to the beginning of input" do + @io.readline.should == "Voici la ligne une.\n" + @io.readline.should == "Qui รจ la linea due.\n" + @io.rewind + @io.readline.should == "Voici la ligne une.\n" + end + + it "positions the instance to the beginning of input and clears EOF" do + value = @io.read + @io.rewind + @io.eof?.should == false + value.should == @io.read + end + + it "sets lineno to 0" do + @io.readline.should == "Voici la ligne une.\n" + @io.lineno.should == 1 + @io.rewind + @io.lineno.should == 0 + end + + it "raises IOError on closed stream" do + lambda { IOSpecs.closed_io.rewind }.should raise_error(IOError) + end +end |