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# -*- encoding: utf-8 -*-
require File.expand_path('../../../spec_helper', __FILE__)
with_feature :encoding_transition do
describe "String#bytes" do
before(:each) do
@utf8 = "東京"
@ascii = 'Tokyo'
@utf8_ascii = @utf8 + @ascii
end
ruby_version_is ""..."2.0" do
it "returns an Enumerator when no block is given" do
@utf8.bytes.should be_an_instance_of(enumerator_class)
end
end
ruby_version_is "2.0" do
it "returns an Array when no block is given" do
@utf8.bytes.should be_an_instance_of(Array)
end
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
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
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