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ruby--ruby/spec/ruby/language/magic_comment_spec.rb
eregon 401b64c4e8 Update to ruby/spec@c1b568b
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-03-04 15:09:32 +00:00

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1.4 KiB
Ruby

require_relative '../spec_helper'
describe "Magic comment" do
it "is optional" do
eval("__ENCODING__").should be_an_instance_of(Encoding)
end
it "determines __ENCODING__" do
eval(<<EOS.force_encoding("US-ASCII")).should == Encoding::ASCII_8BIT
# encoding: ASCII-8BIT
__ENCODING__
EOS
end
it "is case-insensitive" do
eval(<<EOS.force_encoding("US-ASCII")).should == Encoding::ASCII_8BIT
# CoDiNg: aScIi-8bIt
__ENCODING__
EOS
end
it "must be at the first line" do
eval(<<EOS.force_encoding("US-ASCII")).should == Encoding::US_ASCII
# encoding: ASCII-8BIT
__ENCODING__
EOS
end
it "must be the first token of the line" do
eval(<<EOS.force_encoding("US-ASCII")).should == Encoding::US_ASCII
1+1 # encoding: ASCII-8BIT
__ENCODING__
EOS
eval(<<EOS.force_encoding("US-ASCII")).should == Encoding::ASCII_8BIT
# encoding: ASCII-8BIT
__ENCODING__
EOS
end
it "can be after the shebang" do
eval(<<EOS.force_encoding("US-ASCII")).should == Encoding::ASCII_8BIT
#!/usr/bin/ruby -Ku
# encoding: ASCII-8BIT
__ENCODING__
EOS
end
it "can take Emacs style" do
eval(<<EOS.force_encoding("US-ASCII")).should == Encoding::ASCII_8BIT
# -*- encoding: ascii-8bit -*-
__ENCODING__
EOS
end
it "can take vim style" do
eval(<<EOS.force_encoding("US-ASCII")).should == Encoding::ASCII_8BIT
# vim: filetype=ruby, fileencoding=ascii-8bit, tabsize=3, shiftwidth=3
__ENCODING__
EOS
end
end