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Diffstat (limited to 'spec/ruby/core/io/shared/chars.rb')
-rw-r--r-- | spec/ruby/core/io/shared/chars.rb | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/spec/ruby/core/io/shared/chars.rb b/spec/ruby/core/io/shared/chars.rb new file mode 100644 index 0000000000..7f2edd2b6d --- /dev/null +++ b/spec/ruby/core/io/shared/chars.rb @@ -0,0 +1,73 @@ +# -*- encoding: utf-8 -*- +describe :io_chars, shared: true do + before :each do + @io = IOSpecs.io_fixture "lines.txt" + ScratchPad.record [] + end + + after :each do + @io.close unless @io.closed? + end + + it "yields each character" do + @io.readline.should == "Voici la ligne une.\n" + + count = 0 + @io.send(@method) do |c| + ScratchPad << c + break if 4 < count += 1 + end + + ScratchPad.recorded.should == ["Q", "u", "i", " ", "รจ"] + end + + describe "when no block is given" do + it "returns an Enumerator" do + enum = @io.send(@method) + enum.should be_an_instance_of(Enumerator) + enum.first(5).should == ["V", "o", "i", "c", "i"] + end + + describe "returned Enumerator" do + describe "size" do + it "should return nil" do + @io.send(@method).size.should == nil + end + end + end + end + + it "returns itself" do + @io.send(@method) { |c| }.should equal(@io) + end + + it "returns an enumerator for a closed stream" do + IOSpecs.closed_io.send(@method).should be_an_instance_of(Enumerator) + end + + it "raises an IOError when an enumerator created on a closed stream is accessed" do + lambda { IOSpecs.closed_io.send(@method).first }.should raise_error(IOError) + end + + it "raises IOError on closed stream" do + lambda { IOSpecs.closed_io.send(@method) {} }.should raise_error(IOError) + end +end + +describe :io_chars_empty, shared: true do + before :each do + @name = tmp("io_each_char") + @io = new_io @name, "w+:utf-8" + ScratchPad.record [] + end + + after :each do + @io.close unless @io.closed? + rm_r @name + end + + it "does not yield any characters on an empty stream" do + @io.send(@method) { |c| ScratchPad << c } + ScratchPad.recorded.should == [] + end +end |