diff options
Diffstat (limited to 'spec/ruby/core/encoding/converter/convpath_spec.rb')
-rw-r--r-- | spec/ruby/core/encoding/converter/convpath_spec.rb | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/spec/ruby/core/encoding/converter/convpath_spec.rb b/spec/ruby/core/encoding/converter/convpath_spec.rb new file mode 100644 index 0000000000..679b894f58 --- /dev/null +++ b/spec/ruby/core/encoding/converter/convpath_spec.rb @@ -0,0 +1,65 @@ +require File.expand_path('../../../../spec_helper', __FILE__) + +with_feature :encoding do + describe "Encoding::Converter#convpath" do + before :all do + @perms = Encoding.name_list.permutation(2).map do |pair| + Encoding::Converter.new(pair.first, pair.last) rescue nil + end.compact.map{|ec| ec.convpath} + end + + it "returns an Array" do + ec = Encoding::Converter.new('ASCII', 'EUC-JP') + ec.convpath.should be_an_instance_of(Array) + end + + it "returns each encoding pair as a sub-Array" do + ec = Encoding::Converter.new('ASCII', 'EUC-JP') + ec.convpath.first.should be_an_instance_of(Array) + ec.convpath.first.size.should == 2 + end + + it "returns each encoding as an Encoding object" do + ec = Encoding::Converter.new('ASCII', 'EUC-JP') + ec.convpath.first.first.should be_an_instance_of(Encoding) + ec.convpath.first.last.should be_an_instance_of(Encoding) + end + + it "returns multiple encoding pairs when direct conversion is impossible" do + ec = Encoding::Converter.new('ascii','Big5') + ec.convpath.size.should == 2 + ec.convpath.first.first.should == Encoding::US_ASCII + ec.convpath.first.last.should == ec.convpath.last.first + ec.convpath.last.last.should == Encoding::Big5 + end + + it "sets the last element of each pair to the first element of the next" do + @perms.each do |convpath| + next if convpath.size == 1 + convpath.each_with_index do |pair, idx| + break if idx == convpath.size - 1 + pair.last.should == convpath[idx+1].first + end + end + end + + it "only lists a source encoding once" do + @perms.each do |convpath| + next if convpath.size < 2 + seen = Hash.new(false) + convpath.each_with_index do |pair, idx| + seen.key?(pair.first).should be_false if idx > 0 + seen[pair.first] = true + end + end + end + + it "indicates if crlf_newline conversion would occur" do + ec = Encoding::Converter.new("ISo-8859-1", "EUC-JP", {crlf_newline: true}) + ec.convpath.last.should == "crlf_newline" + + ec = Encoding::Converter.new("ASCII", "UTF-8", {crlf_newline: false}) + ec.convpath.last.should_not == "crlf_newline" + end + end +end |