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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
describe "IO#binmode" do
before :each do
@name = tmp("io_binmode.txt")
end
after :each do
@io.close if @io and !@io.closed?
rm_r @name
end
it "returns self" do
@io = new_io(@name)
@io.binmode.should equal(@io)
end
it "raises an IOError on closed stream" do
lambda { IOSpecs.closed_io.binmode }.should raise_error(IOError)
end
it "sets external encoding to binary" do
@io = new_io(@name, "w:utf-8")
@io.binmode
@io.external_encoding.should == Encoding::BINARY
end
it "sets internal encoding to nil" do
@io = new_io(@name, "w:utf-8:ISO-8859-1")
@io.binmode
@io.internal_encoding.should == nil
end
end
describe "IO#binmode?" do
before :each do
@filename = tmp("IO_binmode_file")
@file = File.open(@filename, "w")
@duped = nil
end
after :each do
@duped.close if @duped
@file.close
rm_r @filename
end
it "is true after a call to IO#binmode" do
@file.binmode?.should be_false
@file.binmode
@file.binmode?.should be_true
end
it "propagates to dup'ed IO objects" do
@file.binmode
@duped = @file.dup
@duped.binmode?.should == @file.binmode?
end
end
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