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ruby--ruby/spec/rubyspec/language/magic_comment_spec.rb
eregon 95e8c48dd3 Add in-tree mspec and ruby/spec
* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
  These files can therefore be updated like any other file in MRI.
  Instructions are provided in spec/README.
  [Feature #13156] [ruby-core:79246]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-05-07 12:04:49 +00:00

62 lines
1.4 KiB
Ruby

require File.expand_path('../../spec_helper', __FILE__)
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