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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe :io_internal_encoding, shared: true do
describe "when Encoding.default_internal is not set" do
before :each do
Encoding.default_internal = nil
end
it "returns nil if the internal encoding is not set" do
@io = new_io @name, @object
@io.internal_encoding.should be_nil
end
it "returns nil if Encoding.default_internal is changed after the instance is created" do
@io = new_io @name, @object
Encoding.default_internal = Encoding::IBM437
@io.internal_encoding.should be_nil
end
it "returns the value set when the instance was created" do
@io = new_io @name, "#{@object}:utf-8:euc-jp"
Encoding.default_internal = Encoding::IBM437
@io.internal_encoding.should equal(Encoding::EUC_JP)
end
it "returns the value set by #set_encoding" do
@io = new_io @name, @object
@io.set_encoding(Encoding::US_ASCII, Encoding::IBM437)
@io.internal_encoding.should equal(Encoding::IBM437)
end
end
describe "when Encoding.default_internal == Encoding.default_external" do
before :each do
Encoding.default_external = Encoding::IBM866
Encoding.default_internal = Encoding::IBM866
end
it "returns nil" do
@io = new_io @name, @object
@io.internal_encoding.should be_nil
end
it "returns nil regardless of Encoding.default_internal changes" do
@io = new_io @name, @object
Encoding.default_internal = Encoding::IBM437
@io.internal_encoding.should be_nil
end
end
describe "when Encoding.default_internal != Encoding.default_external" do
before :each do
Encoding.default_external = Encoding::IBM437
Encoding.default_internal = Encoding::IBM866
end
it "returns the value of Encoding.default_internal when the instance was created if the internal encoding is not set" do
@io = new_io @name, @object
@io.internal_encoding.should equal(Encoding::IBM866)
end
it "does not change when Encoding.default_internal is changed" do
@io = new_io @name, @object
Encoding.default_internal = Encoding::IBM437
@io.internal_encoding.should equal(Encoding::IBM866)
end
it "returns the internal encoding set when the instance was created" do
@io = new_io @name, "#{@object}:utf-8:euc-jp"
@io.internal_encoding.should equal(Encoding::EUC_JP)
end
it "does not change when set and Encoding.default_internal is changed" do
@io = new_io @name, "#{@object}:utf-8:euc-jp"
Encoding.default_internal = Encoding::IBM437
@io.internal_encoding.should equal(Encoding::EUC_JP)
end
it "returns the value set by #set_encoding" do
@io = new_io @name, @object
@io.set_encoding(Encoding::US_ASCII, Encoding::IBM437)
@io.internal_encoding.should equal(Encoding::IBM437)
end
it "returns nil when Encoding.default_external is BINARY and the internal encoding is not set" do
Encoding.default_external = Encoding::BINARY
@io = new_io @name, @object
@io.internal_encoding.should be_nil
end
it "returns nil when the external encoding is BINARY and the internal encoding is not set" do
@io = new_io @name, "#{@object}:binary"
@io.internal_encoding.should be_nil
end
end
end
describe "IO#internal_encoding" do
before :each do
@external = Encoding.default_external
@internal = Encoding.default_internal
@name = tmp("io_internal_encoding")
touch(@name)
end
after :each do
@io.close if @io
rm_r @name
Encoding.default_external = @external
Encoding.default_internal = @internal
end
ruby_version_is '3.1' do
it "can be retrieved from a closed stream" do
io = IOSpecs.io_fixture("lines.txt", "r")
io.close
io.internal_encoding.should equal(Encoding.default_internal)
end
end
describe "with 'r' mode" do
it_behaves_like :io_internal_encoding, nil, "r"
end
describe "with 'r+' mode" do
it_behaves_like :io_internal_encoding, nil, "r+"
end
describe "with 'w' mode" do
it_behaves_like :io_internal_encoding, nil, "w"
end
describe "with 'w+' mode" do
it_behaves_like :io_internal_encoding, nil, "w+"
end
describe "with 'a' mode" do
it_behaves_like :io_internal_encoding, nil, "a"
end
describe "with 'a+' mode" do
it_behaves_like :io_internal_encoding, nil, "a+"
end
end
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