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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe :io_readchar_internal_encoding, shared: true do
it "returns a transcoded String" do
@io.readchar.should == "あ"
end
it "sets the String encoding to the internal encoding" do
@io.readchar.encoding.should equal(Encoding::UTF_8)
end
end
describe "IO#readchar" do
before :each do
@io = IOSpecs.io_fixture "lines.txt"
end
after :each do
@io.close unless @io.closed?
end
it "returns the next string from the stream" do
@io.readchar.should == 'V'
@io.readchar.should == 'o'
@io.readchar.should == 'i'
# read the rest of line
@io.readline.should == "ci la ligne une.\n"
@io.readchar.should == 'Q'
end
it "raises an EOFError when invoked at the end of the stream" do
@io.read
-> { @io.readchar }.should raise_error(EOFError)
end
it "raises IOError on closed stream" do
-> { IOSpecs.closed_io.readchar }.should raise_error(IOError)
end
end
describe "IO#readchar with internal encoding" do
after :each do
@io.close if @io
end
describe "not specified" do
before :each do
@io = IOSpecs.io_fixture "read_euc_jp.txt", "r:euc-jp"
end
it "does not transcode the String" do
@io.readchar.should == ("あ").encode(Encoding::EUC_JP)
end
it "sets the String encoding to the external encoding" do
@io.readchar.encoding.should equal(Encoding::EUC_JP)
end
end
describe "specified by open mode" do
before :each do
@io = IOSpecs.io_fixture "read_euc_jp.txt", "r:euc-jp:utf-8"
end
it_behaves_like :io_readchar_internal_encoding, nil
end
describe "specified by mode: option" do
before :each do
@io = IOSpecs.io_fixture "read_euc_jp.txt", mode: "r:euc-jp:utf-8"
end
it_behaves_like :io_readchar_internal_encoding, nil
end
describe "specified by internal_encoding: option" do
before :each do
options = { mode: "r",
internal_encoding: "utf-8",
external_encoding: "euc-jp" }
@io = IOSpecs.io_fixture "read_euc_jp.txt", options
end
it_behaves_like :io_readchar_internal_encoding, nil
end
describe "specified by encoding: option" do
before :each do
options = { mode: "r", encoding: "euc-jp:utf-8" }
@io = IOSpecs.io_fixture "read_euc_jp.txt", options
end
it_behaves_like :io_readchar_internal_encoding, nil
end
end
describe "IO#readchar" do
before :each do
@io = IOSpecs.io_fixture "empty.txt"
end
after :each do
@io.close unless @io.closed?
end
it "raises EOFError on empty stream" do
-> { @io.readchar }.should raise_error(EOFError)
end
end
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