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Diffstat (limited to 'spec/ruby/core/string/bytes_spec.rb')
-rw-r--r-- | spec/ruby/core/string/bytes_spec.rb | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/spec/ruby/core/string/bytes_spec.rb b/spec/ruby/core/string/bytes_spec.rb new file mode 100644 index 0000000000..b1f5ba412f --- /dev/null +++ b/spec/ruby/core/string/bytes_spec.rb @@ -0,0 +1,57 @@ +# -*- encoding: utf-8 -*- +require File.expand_path('../../../spec_helper', __FILE__) + +describe "String#bytes" do + before :each do + @utf8 = "東京" + @ascii = 'Tokyo' + @utf8_ascii = @utf8 + @ascii + end + + it "returns an Array when no block is given" do + @utf8.bytes.should be_an_instance_of(Array) + end + + it "yields each byte to a block if one is given, returning self" do + bytes = [] + @utf8.bytes {|b| bytes << b}.should == @utf8 + bytes.should == @utf8.bytes.to_a + end + + it "returns #bytesize bytes" do + @utf8_ascii.bytes.to_a.size.should == @utf8_ascii.bytesize + end + + it "returns bytes as Fixnums" do + @ascii.bytes.to_a.each {|b| b.should be_an_instance_of(Fixnum)} + @utf8_ascii.bytes { |b| b.should be_an_instance_of(Fixnum) } + end + + it "agrees with #unpack('C*')" do + @utf8_ascii.bytes.to_a.should == @utf8_ascii.unpack("C*") + end + + it "yields/returns no bytes for the empty string" do + ''.bytes.to_a.should == [] + end +end + +with_feature :encoding do + describe "String#bytes" do + before :each do + @utf8 = "東京" + @ascii = 'Tokyo' + @utf8_ascii = @utf8 + @ascii + end + + it "agrees with #getbyte" do + @utf8_ascii.bytes.to_a.each_with_index do |byte,index| + byte.should == @utf8_ascii.getbyte(index) + end + end + + it "is unaffected by #force_encoding" do + @utf8.force_encoding('ASCII').bytes.to_a.should == @utf8.bytes.to_a + end + end +end |