diff options
Diffstat (limited to 'spec/rubyspec/library/stringio/shared/codepoints.rb')
-rw-r--r-- | spec/rubyspec/library/stringio/shared/codepoints.rb | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/spec/rubyspec/library/stringio/shared/codepoints.rb b/spec/rubyspec/library/stringio/shared/codepoints.rb new file mode 100644 index 0000000000..c8ca03329f --- /dev/null +++ b/spec/rubyspec/library/stringio/shared/codepoints.rb @@ -0,0 +1,45 @@ +# -*- encoding: utf-8 -*- +describe :stringio_codepoints, shared: true do + before :each do + @io = StringIO.new("∂φ/∂x = gaîté") + @enum = @io.send(@method) + end + + it "returns an Enumerator" do + @enum.should be_an_instance_of(Enumerator) + end + + it "yields each codepoint code in turn" do + @enum.to_a.should == [8706, 966, 47, 8706, 120, 32, 61, 32, 103, 97, 238, 116, 233] + end + + it "yields each codepoint starting from the current position" do + @io.pos = 15 + @enum.to_a.should == [238, 116, 233] + end + + it "raises an error if reading invalid sequence" do + @io.pos = 1 # inside of a multibyte sequence + lambda { @enum.first }.should raise_error(ArgumentError) + end + + it "raises an IOError if not readable" do + @io.close_read + lambda { @enum.to_a }.should raise_error(IOError) + + io = StringIO.new("xyz", "w") + lambda { io.send(@method).to_a }.should raise_error(IOError) + end + + + it "calls the given block" do + r = [] + @io.send(@method){|c| r << c } + r.should == [8706, 966, 47, 8706, 120, 32, 61, 32, 103, 97, 238, 116, 233] + end + + it "returns self" do + @io.send(@method) {|l| l }.should equal(@io) + end + +end |