Update to ruby/spec@7de852d

spec/ruby/core/argf/gets_spec.rb

@@ -26,7 +26,6 @@ describe "ARGF.gets" do
     end
   end
 
-  with_feature :encoding do
   before :each do
     @external = Encoding.default_external
     @internal = Encoding.default_internal
@@ -46,6 +45,5 @@ describe "ARGF.gets" do
       @argf.gets.encoding.should == Encoding::US_ASCII
     end
   end
-  end
 
 end

spec/ruby/core/argf/read_spec.rb

@@ -62,7 +62,6 @@ describe "ARGF.read" do
     end
   end
 
-  with_feature :encoding do
 
   before :each do
     @external = Encoding.default_external
@@ -83,5 +82,4 @@ describe "ARGF.read" do
       @argf.read.encoding.should == Encoding::US_ASCII
     end
   end
-  end
 end

spec/ruby/core/dir/shared/glob.rb

@@ -11,12 +11,10 @@ describe :dir_glob, shared: true do
     DirSpecs.delete_mock_dirs
   end
 
-  with_feature :encoding do
   it "raises an Encoding::CompatibilityError if the argument encoding is not compatible with US-ASCII" do
     pattern = "file*".force_encoding Encoding::UTF_16BE
     lambda { Dir.send(@method, pattern) }.should raise_error(Encoding::CompatibilityError)
   end
-  end
 
   it "calls #to_path to convert a pattern" do
     obj = mock('file_one.ext')

spec/ruby/core/dir/shared/path.rb

@@ -18,7 +18,6 @@ describe :dir_path, shared: true do
     dir.send(@method).should == DirSpecs.mock_dir
   end
 
-  with_feature :encoding do
   it "returns a String with the same encoding as the argument to .open" do
     path = DirSpecs.mock_dir.force_encoding Encoding::IBM866
     dir = Dir.open path
@@ -28,5 +27,4 @@ describe :dir_path, shared: true do
       dir.close
     end
   end
-  end
 end

spec/ruby/core/dir/shared/pwd.rb

@@ -1,9 +1,7 @@
 describe :dir_pwd, shared: true do
-  with_feature :encoding do
   before :each do
     @fs_encoding = Encoding.find('filesystem')
   end
-  end
 
   it "returns the current working directory" do
     pwd = Dir.send(@method)
@@ -36,7 +34,6 @@ describe :dir_pwd, shared: true do
     end
   end
 
-  with_feature :encoding do
   it "returns a String with the filesystem encoding" do
     enc = Dir.send(@method).encoding
     if @fs_encoding == Encoding::US_ASCII
@@ -45,5 +42,4 @@ describe :dir_pwd, shared: true do
       enc.should equal(@fs_encoding)
     end
   end
-  end
 end

spec/ruby/core/encoding/aliases_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding.aliases" do
+describe "Encoding.aliases" do
   it "returns a Hash" do
     Encoding.aliases.should be_an_instance_of(Hash)
   end
@@ -41,5 +40,4 @@ with_feature :encoding do
       Encoding.find(aliased).should == Encoding.find(original)
     end
   end
-  end
 end

spec/ruby/core/encoding/ascii_compatible_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding#ascii_compatible?" do
+describe "Encoding#ascii_compatible?" do
   it "returns true if self represents an ASCII-compatible encoding" do
     Encoding::UTF_8.ascii_compatible?.should be_true
   end
@@ -9,5 +8,4 @@ with_feature :encoding do
   it "returns false if self does not represent an ASCII-compatible encoding" do
     Encoding::UTF_16LE.ascii_compatible?.should be_false
   end
-  end
 end

spec/ruby/core/encoding/compatible_spec.rb

@@ -2,10 +2,9 @@
 
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  # TODO: add IO
+# TODO: add IO
 
-  describe "Encoding.compatible? String, String" do
+describe "Encoding.compatible? String, String" do
   describe "when the first's Encoding is valid US-ASCII" do
     before :each do
       @str = "abc".force_encoding Encoding::US_ASCII
@@ -162,9 +161,9 @@ with_feature :encoding do
       Encoding.compatible?(@str, "").should == Encoding::UTF_7
     end
   end
-  end
+end
 
-  describe "Encoding.compatible? String, Regexp" do
+describe "Encoding.compatible? String, Regexp" do
   it "returns US-ASCII if both are US-ASCII" do
     str = "abc".force_encoding("us-ascii")
     Encoding.compatible?(str, /abc/).should == Encoding::US_ASCII
@@ -185,9 +184,9 @@ with_feature :encoding do
       [Encoding, "\x82\xa0".force_encoding("shift_jis"),  Encoding::Shift_JIS],
     ].should be_computed_by(:compatible?, /abc/)
   end
-  end
+end
 
-  describe "Encoding.compatible? String, Symbol" do
+describe "Encoding.compatible? String, Symbol" do
   it "returns US-ASCII if both are ASCII only" do
     str = "abc".force_encoding("us-ascii")
     Encoding.compatible?(str, :abc).should == Encoding::US_ASCII
@@ -208,9 +207,9 @@ with_feature :encoding do
       [Encoding, "\x82\xa0".force_encoding("shift_jis"),  Encoding::Shift_JIS],
     ].should be_computed_by(:compatible?, :abc)
   end
-  end
+end
 
-  describe "Encoding.compatible? String, Encoding" do
+describe "Encoding.compatible? String, Encoding" do
   it "returns nil if the String's encoding is not ASCII compatible" do
     Encoding.compatible?("abc".encode("utf-32le"), Encoding::US_ASCII).should be_nil
   end
@@ -239,17 +238,17 @@ with_feature :encoding do
   it "returns nil if the String's encoding is ASCII compatible but the string is not ASCII only" do
     Encoding.compatible?("\u3042".encode("utf-8"), Encoding::ASCII_8BIT).should be_nil
   end
-  end
+end
 
-  describe "Encoding.compatible? Regexp, String" do
+describe "Encoding.compatible? Regexp, String" do
   it "returns US-ASCII if both are US-ASCII" do
     str = "abc".force_encoding("us-ascii")
     Encoding.compatible?(/abc/, str).should == Encoding::US_ASCII
   end
 
-  end
+end
 
-  describe "Encoding.compatible? Regexp, Regexp" do
+describe "Encoding.compatible? Regexp, Regexp" do
   it "returns US-ASCII if both are US-ASCII" do
     Encoding.compatible?(/abc/, /def/).should == Encoding::US_ASCII
   end
@@ -261,9 +260,9 @@ with_feature :encoding do
       [Encoding, Regexp.new("\x82\xa0".force_encoding("shift_jis")),  Encoding::Shift_JIS],
     ].should be_computed_by(:compatible?, /abc/)
   end
-  end
+end
 
-  describe "Encoding.compatible? Regexp, Symbol" do
+describe "Encoding.compatible? Regexp, Symbol" do
   it "returns US-ASCII if both are US-ASCII" do
     Encoding.compatible?(/abc/, :def).should == Encoding::US_ASCII
   end
@@ -275,16 +274,16 @@ with_feature :encoding do
       [Encoding, Regexp.new("\x82\xa0".force_encoding("shift_jis")),  Encoding::Shift_JIS],
     ].should be_computed_by(:compatible?, /abc/)
   end
-  end
+end
 
-  describe "Encoding.compatible? Symbol, String" do
+describe "Encoding.compatible? Symbol, String" do
   it "returns US-ASCII if both are ASCII only" do
     str = "abc".force_encoding("us-ascii")
     Encoding.compatible?(str, :abc).should == Encoding::US_ASCII
   end
-  end
+end
 
-  describe "Encoding.compatible? Symbol, Regexp" do
+describe "Encoding.compatible? Symbol, Regexp" do
   it "returns US-ASCII if both are US-ASCII" do
     Encoding.compatible?(:abc, /def/).should == Encoding::US_ASCII
   end
@@ -301,9 +300,9 @@ with_feature :encoding do
       [Encoding, :abc, d, Encoding::Shift_JIS],
     ].should be_computed_by(:compatible?)
   end
-  end
+end
 
-  describe "Encoding.compatible? Symbol, Symbol" do
+describe "Encoding.compatible? Symbol, Symbol" do
   it "returns US-ASCII if both are US-ASCII" do
     Encoding.compatible?(:abc, :def).should == Encoding::US_ASCII
   end
@@ -315,9 +314,9 @@ with_feature :encoding do
       [Encoding, "\x82\xa0".force_encoding("shift_jis").to_sym,  Encoding::Shift_JIS],
     ].should be_computed_by(:compatible?, :abc)
   end
-  end
+end
 
-  describe "Encoding.compatible? Encoding, Encoding" do
+describe "Encoding.compatible? Encoding, Encoding" do
   it "returns nil if one of the encodings is a dummy encoding" do
     [ [Encoding, Encoding::UTF_7, Encoding::US_ASCII,   nil],
       [Encoding, Encoding::US_ASCII, Encoding::UTF_7,   nil],
@@ -351,9 +350,9 @@ with_feature :encoding do
       [Encoding, Encoding::UTF_7, Encoding::UTF_7,            Encoding::UTF_7],
     ].should be_computed_by(:compatible?)
   end
-  end
+end
 
-  describe "Encoding.compatible? Object, Object" do
+describe "Encoding.compatible? Object, Object" do
   it "returns nil for Object, String" do
     Encoding.compatible?(Object.new, "abc").should be_nil
   end
@@ -377,5 +376,4 @@ with_feature :encoding do
   it "returns nil for Symbol, Object" do
     Encoding.compatible?(:sym, Object.new).should be_nil
   end
-  end
 end

spec/ruby/core/encoding/converter/asciicompat_encoding_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::Converter.asciicompat_encoding" do
+describe "Encoding::Converter.asciicompat_encoding" do
   it "accepts an encoding name as a String argument" do
     lambda { Encoding::Converter.asciicompat_encoding('UTF-8') }.
       should_not raise_error
@@ -35,5 +34,4 @@ with_feature :encoding do
     Encoding::Converter.asciicompat_encoding('internal').should be_nil
     Encoding.default_internal = internal
   end
-  end
 end

spec/ruby/core/encoding/converter/constants_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::Converter::INVALID_MASK" do
+describe "Encoding::Converter::INVALID_MASK" do
   it "exists" do
     Encoding::Converter.should have_constant(:INVALID_MASK)
   end
@@ -9,9 +8,9 @@ with_feature :encoding do
   it "has a Fixnum value" do
     Encoding::Converter::INVALID_MASK.should be_an_instance_of(Fixnum)
   end
-  end
+end
 
-  describe "Encoding::Converter::INVALID_REPLACE" do
+describe "Encoding::Converter::INVALID_REPLACE" do
   it "exists" do
     Encoding::Converter.should have_constant(:INVALID_REPLACE)
   end
@@ -19,9 +18,9 @@ with_feature :encoding do
   it "has a Fixnum value" do
     Encoding::Converter::INVALID_REPLACE.should be_an_instance_of(Fixnum)
   end
-  end
+end
 
-  describe "Encoding::Converter::UNDEF_MASK" do
+describe "Encoding::Converter::UNDEF_MASK" do
   it "exists" do
     Encoding::Converter.should have_constant(:UNDEF_MASK)
   end
@@ -29,9 +28,9 @@ with_feature :encoding do
   it "has a Fixnum value" do
     Encoding::Converter::UNDEF_MASK.should be_an_instance_of(Fixnum)
   end
-  end
+end
 
-  describe "Encoding::Converter::UNDEF_REPLACE" do
+describe "Encoding::Converter::UNDEF_REPLACE" do
   it "exists" do
     Encoding::Converter.should have_constant(:UNDEF_REPLACE)
   end
@@ -39,9 +38,9 @@ with_feature :encoding do
   it "has a Fixnum value" do
     Encoding::Converter::UNDEF_REPLACE.should be_an_instance_of(Fixnum)
   end
-  end
+end
 
-  describe "Encoding::Converter::UNDEF_HEX_CHARREF" do
+describe "Encoding::Converter::UNDEF_HEX_CHARREF" do
   it "exists" do
     Encoding::Converter.should have_constant(:UNDEF_HEX_CHARREF)
   end
@@ -49,9 +48,9 @@ with_feature :encoding do
   it "has a Fixnum value" do
     Encoding::Converter::UNDEF_HEX_CHARREF.should be_an_instance_of(Fixnum)
   end
-  end
+end
 
-  describe "Encoding::Converter::PARTIAL_INPUT" do
+describe "Encoding::Converter::PARTIAL_INPUT" do
   it "exists" do
     Encoding::Converter.should have_constant(:PARTIAL_INPUT)
   end
@@ -59,9 +58,9 @@ with_feature :encoding do
   it "has a Fixnum value" do
     Encoding::Converter::PARTIAL_INPUT.should be_an_instance_of(Fixnum)
   end
-  end
+end
 
-  describe "Encoding::Converter::AFTER_OUTPUT" do
+describe "Encoding::Converter::AFTER_OUTPUT" do
   it "exists" do
     Encoding::Converter.should have_constant(:AFTER_OUTPUT)
   end
@@ -69,9 +68,9 @@ with_feature :encoding do
   it "has a Fixnum value" do
     Encoding::Converter::AFTER_OUTPUT.should be_an_instance_of(Fixnum)
   end
-  end
+end
 
-  describe "Encoding::Converter::UNIVERSAL_NEWLINE_DECORATOR" do
+describe "Encoding::Converter::UNIVERSAL_NEWLINE_DECORATOR" do
   it "exists" do
     Encoding::Converter.should have_constant(:UNIVERSAL_NEWLINE_DECORATOR)
   end
@@ -79,9 +78,9 @@ with_feature :encoding do
   it "has a Fixnum value" do
     Encoding::Converter::UNIVERSAL_NEWLINE_DECORATOR.should be_an_instance_of(Fixnum)
   end
-  end
+end
 
-  describe "Encoding::Converter::CRLF_NEWLINE_DECORATOR" do
+describe "Encoding::Converter::CRLF_NEWLINE_DECORATOR" do
   it "exists" do
     Encoding::Converter.should have_constant(:CRLF_NEWLINE_DECORATOR)
   end
@@ -89,9 +88,9 @@ with_feature :encoding do
   it "has a Fixnum value" do
     Encoding::Converter::CRLF_NEWLINE_DECORATOR.should be_an_instance_of(Fixnum)
   end
-  end
+end
 
-  describe "Encoding::Converter::CR_NEWLINE_DECORATOR" do
+describe "Encoding::Converter::CR_NEWLINE_DECORATOR" do
   it "exists" do
     Encoding::Converter.should have_constant(:CR_NEWLINE_DECORATOR)
   end
@@ -99,9 +98,9 @@ with_feature :encoding do
   it "has a Fixnum value" do
     Encoding::Converter::CR_NEWLINE_DECORATOR.should be_an_instance_of(Fixnum)
   end
-  end
+end
 
-  describe "Encoding::Converter::XML_TEXT_DECORATOR" do
+describe "Encoding::Converter::XML_TEXT_DECORATOR" do
   it "exists" do
     Encoding::Converter.should have_constant(:XML_TEXT_DECORATOR)
   end
@@ -109,9 +108,9 @@ with_feature :encoding do
   it "has a Fixnum value" do
     Encoding::Converter::XML_TEXT_DECORATOR.should be_an_instance_of(Fixnum)
   end
-  end
+end
 
-  describe "Encoding::Converter::XML_ATTR_CONTENT_DECORATOR" do
+describe "Encoding::Converter::XML_ATTR_CONTENT_DECORATOR" do
   it "exists" do
     Encoding::Converter.should have_constant(:XML_ATTR_CONTENT_DECORATOR)
   end
@@ -119,9 +118,9 @@ with_feature :encoding do
   it "has a Fixnum value" do
     Encoding::Converter::XML_ATTR_CONTENT_DECORATOR.should be_an_instance_of(Fixnum)
   end
-  end
+end
 
-  describe "Encoding::Converter::XML_ATTR_QUOTE_DECORATOR" do
+describe "Encoding::Converter::XML_ATTR_QUOTE_DECORATOR" do
   it "exists" do
     Encoding::Converter.should have_constant(:XML_ATTR_QUOTE_DECORATOR)
   end
@@ -129,5 +128,4 @@ with_feature :encoding do
   it "has a Fixnum value" do
     Encoding::Converter::XML_ATTR_QUOTE_DECORATOR.should be_an_instance_of(Fixnum)
   end
-  end
 end

spec/ruby/core/encoding/converter/convert_spec.rb

@@ -1,8 +1,7 @@
 # -*- encoding: binary -*-
 require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::Converter#convert" do
+describe "Encoding::Converter#convert" do
   it "returns a String" do
     ec = Encoding::Converter.new('ascii', 'utf-8')
     ec.convert('glark').should be_an_instance_of(String)
@@ -43,5 +42,4 @@ with_feature :encoding do
     ec.finish
     lambda { ec.convert("\u{65}") }.should raise_error(ArgumentError)
   end
-  end
 end

spec/ruby/core/encoding/converter/convpath_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::Converter#convpath" do
+describe "Encoding::Converter#convpath" do
   it "returns an Array with a single element if there is a direct converter" do
     cp = Encoding::Converter.new('ASCII', 'UTF-8').convpath
     cp.should == [[Encoding::US_ASCII, Encoding::UTF_8]]
@@ -22,5 +21,4 @@ with_feature :encoding do
     ec = Encoding::Converter.new("ASCII", "UTF-8", {crlf_newline: false})
     ec.convpath.last.should_not == "crlf_newline"
   end
-  end
 end

spec/ruby/core/encoding/converter/destination_encoding_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::Converter#destination_encoding" do
+describe "Encoding::Converter#destination_encoding" do
   it "returns the destination encoding as an Encoding object" do
     ec = Encoding::Converter.new('ASCII','Big5')
     ec.destination_encoding.should == Encoding::BIG5
@@ -9,5 +8,4 @@ with_feature :encoding do
     ec = Encoding::Converter.new('SJIS','EUC-JP')
     ec.destination_encoding.should == Encoding::EUC_JP
   end
-  end
 end

spec/ruby/core/encoding/converter/finish_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::Converter#finish" do
+describe "Encoding::Converter#finish" do
   before :each do
     @ec = Encoding::Converter.new("utf-8", "iso-2022-jp")
   end
@@ -34,5 +33,4 @@ with_feature :encoding do
     @ec.finish.should == ""
     @ec.finish.should == ""
   end
-  end
 end

spec/ruby/core/encoding/converter/last_error_spec.rb

@@ -1,8 +1,7 @@
 # -*- encoding: binary -*-
 require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::Converter#last_error" do
+describe "Encoding::Converter#last_error" do
   it "returns nil when the no conversion has been attempted" do
     ec = Encoding::Converter.new('ascii','utf-8')
     ec.last_error.should be_nil
@@ -89,5 +88,4 @@ with_feature :encoding do
     ec.last_error.message.should == exception.message
     ec.last_error.message.should include "from ISO-8859-1 to UTF-8 to Big5"
   end
-  end
 end

spec/ruby/core/encoding/converter/new_spec.rb

@@ -1,8 +1,7 @@
 # -*- encoding: ascii-8bit -*-
 require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::Converter.new" do
+describe "Encoding::Converter.new" do
   it "accepts a String for the source encoding" do
     conv = Encoding::Converter.new("us-ascii", "utf-8")
     conv.source_encoding.should == Encoding::US_ASCII
@@ -117,5 +116,4 @@ with_feature :encoding do
       end
     end
   end
-  end
 end

spec/ruby/core/encoding/converter/primitive_convert_spec.rb

@@ -1,8 +1,7 @@
 # -*- encoding: binary -*-
 require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::Converter#primitive_convert" do
+describe "Encoding::Converter#primitive_convert" do
   before :each do
     @ec = Encoding::Converter.new("utf-8", "iso-8859-1")
   end
@@ -209,5 +208,4 @@ with_feature :encoding do
 
     dest.should == "abcd"
   end
-  end
 end

spec/ruby/core/encoding/converter/primitive_errinfo_spec.rb

@@ -1,8 +1,7 @@
 # -*- encoding: binary -*-
 require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::Converter#primitive_errinfo" do
+describe "Encoding::Converter#primitive_errinfo" do
   it "returns [:source_buffer_empty,nil,nil,nil,nil] when no conversion has been attempted" do
     ec = Encoding::Converter.new('ascii','utf-8')
     ec.primitive_errinfo.should == [:source_buffer_empty, nil, nil, nil, nil]
@@ -66,5 +65,4 @@ with_feature :encoding do
     lambda { ec.finish }.should raise_error(Encoding::InvalidByteSequenceError)
     ec.primitive_errinfo.should == [:incomplete_input, "EUC-JP", "UTF-8", "\xA4", ""]
   end
-  end
 end

spec/ruby/core/encoding/converter/putback_spec.rb

@@ -1,8 +1,7 @@
 # -*- encoding: binary -*-
 require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::Converter#putback" do
+describe "Encoding::Converter#putback" do
   before :each do
     @ec = Encoding::Converter.new("EUC-JP", "ISO-8859-1")
     @ret = @ec.primitive_convert(@src="abc\xa1def", @dst="", nil, 10)
@@ -45,5 +44,4 @@ with_feature :encoding do
     ec.putback.should == "a".force_encoding("utf-16le")
     ec.putback.should == ""
   end
-  end
 end

spec/ruby/core/encoding/converter/replacement_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::Converter#replacement" do
+describe "Encoding::Converter#replacement" do
   it "returns '?' in US-ASCII when the destination encoding is not UTF-8" do
     ec = Encoding::Converter.new("utf-8", "us-ascii")
     ec.replacement.should == "?"
@@ -17,9 +16,9 @@ with_feature :encoding do
     ec.replacement.should == "\u{fffd}".force_encoding('utf-8')
     ec.replacement.encoding.should == Encoding::UTF_8
   end
-  end
+end
 
-  describe "Encoding::Converter#replacement=" do
+describe "Encoding::Converter#replacement=" do
   it "accepts a String argument" do
     ec = Encoding::Converter.new("utf-8", "us-ascii")
     ec.replacement = "!"
@@ -70,5 +69,4 @@ with_feature :encoding do
     status.should == :finished
     dest.should == "!!123"
   end
-  end
 end

spec/ruby/core/encoding/converter/search_convpath_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::Converter.search_convpath" do
+describe "Encoding::Converter.search_convpath" do
   it "returns an Array with a single element if there is a direct converter" do
     cp = Encoding::Converter.search_convpath('ASCII', 'UTF-8')
     cp.should == [[Encoding::US_ASCII, Encoding::UTF_8]]
@@ -30,5 +29,4 @@ with_feature :encoding do
      Encoding::Converter.search_convpath(Encoding::ASCII_8BIT, Encoding::Emacs_Mule)
    end.should raise_error(Encoding::ConverterNotFoundError)
   end
-  end
 end

spec/ruby/core/encoding/converter/source_encoding_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::Converter#source_encoding" do
+describe "Encoding::Converter#source_encoding" do
   it "returns the source encoding as an Encoding object" do
     ec = Encoding::Converter.new('ASCII','Big5')
     ec.source_encoding.should == Encoding::US_ASCII
@@ -9,5 +8,4 @@ with_feature :encoding do
     ec = Encoding::Converter.new('Shift_JIS','EUC-JP')
     ec.source_encoding.should == Encoding::SHIFT_JIS
   end
-  end
 end

spec/ruby/core/encoding/default_external_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding.default_external" do
+describe "Encoding.default_external" do
   before :each do
     @original_encoding = Encoding.default_external
   end
@@ -18,9 +17,9 @@ with_feature :encoding do
     Encoding.default_external = Encoding::SHIFT_JIS
     Encoding.default_external.should == Encoding::SHIFT_JIS
   end
-  end
+end
 
-  describe "Encoding.default_external=" do
+describe "Encoding.default_external=" do
   before :each do
     @original_encoding = Encoding.default_external
   end
@@ -61,5 +60,4 @@ with_feature :encoding do
   it "raises an ArgumentError if the argument is nil" do
     lambda { Encoding.default_external = nil }.should raise_error(ArgumentError)
   end
-  end
 end

spec/ruby/core/encoding/default_internal_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding.default_internal" do
+describe "Encoding.default_internal" do
   before :each do
     @original_encoding = Encoding.default_internal
   end
@@ -28,9 +27,9 @@ with_feature :encoding do
     Encoding.default_internal = Encoding::ASCII_8BIT
     Encoding.default_internal.should == Encoding::ASCII_8BIT
   end
-  end
+end
 
-  describe "Encoding.default_internal=" do
+describe "Encoding.default_internal=" do
   before :each do
     @original_encoding = Encoding.default_internal
   end
@@ -72,5 +71,4 @@ with_feature :encoding do
     Encoding.default_internal = nil
     Encoding.default_internal.should be_nil
   end
-  end
 end

spec/ruby/core/encoding/dummy_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding#dummy?" do
+describe "Encoding#dummy?" do
   it "returns false for proper encodings" do
     Encoding::UTF_8.dummy?.should be_false
     Encoding::ASCII.dummy?.should be_false
@@ -12,5 +11,4 @@ with_feature :encoding do
     Encoding::CP50221.dummy?.should be_true
     Encoding::UTF_7.dummy?.should be_true
   end
-  end
 end

spec/ruby/core/encoding/find_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding.find" do
+describe "Encoding.find" do
   before :all do
     @encodings = Encoding.aliases.to_a.flatten.uniq
   end
@@ -80,5 +79,4 @@ with_feature :encoding do
   platform_is :windows do
     it "needs to be reviewed for spec completeness"
   end
-  end
 end

spec/ruby/core/encoding/inspect_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding#inspect" do
+describe "Encoding#inspect" do
   it "returns a String" do
     Encoding::UTF_8.inspect.should be_an_instance_of(String)
   end
@@ -17,5 +16,4 @@ with_feature :encoding do
       enc.inspect.should =~ /#<Encoding:#{enc.name} \(dummy\)>/
     end
   end
-  end
 end

spec/ruby/core/encoding/invalid_byte_sequence_error/destination_encoding_name_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../fixtures/classes'
 
-with_feature :encoding do
-  describe "Encoding::InvalidByteSequenceError#destination_encoding_name" do
+describe "Encoding::InvalidByteSequenceError#destination_encoding_name" do
   before :each do
     @exception, = EncodingSpecs::InvalidByteSequenceError.exception
     @exception2, = EncodingSpecs::InvalidByteSequenceErrorIndirect.exception
@@ -16,5 +15,4 @@ with_feature :encoding do
     @exception.destination_encoding_name.should == "ISO-8859-1"
     @exception2.destination_encoding_name.should == "UTF-8"
   end
-  end
 end

spec/ruby/core/encoding/invalid_byte_sequence_error/destination_encoding_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../fixtures/classes'
 
-with_feature :encoding do
-  describe "Encoding::InvalidByteSequenceError#destination_encoding" do
+describe "Encoding::InvalidByteSequenceError#destination_encoding" do
   before :each do
     @exception, = EncodingSpecs::InvalidByteSequenceError.exception
     @exception2, = EncodingSpecs::InvalidByteSequenceErrorIndirect.exception
@@ -16,5 +15,4 @@ with_feature :encoding do
     @exception.destination_encoding.should == Encoding::ISO_8859_1
     @exception2.destination_encoding.should == Encoding::UTF_8
   end
-  end
 end

spec/ruby/core/encoding/invalid_byte_sequence_error/error_bytes_spec.rb

@@ -1,8 +1,7 @@
 # -*- encoding: binary -*-
 require_relative '../fixtures/classes'
 
-with_feature :encoding do
-  describe "Encoding::InvalidByteSequenceError#error_bytes" do
+describe "Encoding::InvalidByteSequenceError#error_bytes" do
   before :each do
     @exception, @errinfo = EncodingSpecs::InvalidByteSequenceError.exception
     @exception2, @errinfo2 = EncodingSpecs::InvalidByteSequenceErrorIndirect.exception
@@ -28,5 +27,4 @@ with_feature :encoding do
 
     @exception2.error_bytes.encoding.should == Encoding::ASCII_8BIT
   end
-  end
 end

spec/ruby/core/encoding/invalid_byte_sequence_error/incomplete_input_spec.rb

@@ -1,8 +1,7 @@
 # -*- encoding: binary -*-
 require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::InvalidByteSequenceError#incomplete_input?" do
+describe "Encoding::InvalidByteSequenceError#incomplete_input?" do
 
   it "returns nil by default" do
     Encoding::InvalidByteSequenceError.new.incomplete_input?.should be_nil
@@ -27,5 +26,4 @@ with_feature :encoding do
       e.incomplete_input?.should be_false
     end
   end
-  end
 end

spec/ruby/core/encoding/invalid_byte_sequence_error/readagain_bytes_spec.rb

@@ -1,8 +1,7 @@
 # -*- encoding: binary -*-
 require_relative '../fixtures/classes'
 
-with_feature :encoding do
-  describe "Encoding::InvalidByteSequenceError#readagain_bytes" do
+describe "Encoding::InvalidByteSequenceError#readagain_bytes" do
   before :each do
     @exception, @errinfo = EncodingSpecs::InvalidByteSequenceError.exception
     @exception2, @errinfo2 = EncodingSpecs::InvalidByteSequenceErrorIndirect.exception
@@ -28,5 +27,4 @@ with_feature :encoding do
 
     @exception2.readagain_bytes.encoding.should == Encoding::ASCII_8BIT
   end
-  end
 end

spec/ruby/core/encoding/invalid_byte_sequence_error/source_encoding_name_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../fixtures/classes'
 
-with_feature :encoding do
-  describe "Encoding::UndefinedConversionError#source_encoding_name" do
+describe "Encoding::UndefinedConversionError#source_encoding_name" do
   before :each do
     @exception, = EncodingSpecs::UndefinedConversionError.exception
     @exception2, = EncodingSpecs::UndefinedConversionErrorIndirect.exception
@@ -26,5 +25,4 @@ with_feature :encoding do
   it "is equal to the source encoding at the stage of the conversion path where the error occurred" do
     @exception2.source_encoding_name.should == 'UTF-8'
   end
-  end
 end

spec/ruby/core/encoding/invalid_byte_sequence_error/source_encoding_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../fixtures/classes'
 
-with_feature :encoding do
-  describe "Encoding::InvalidByteSequenceError#source_encoding" do
+describe "Encoding::InvalidByteSequenceError#source_encoding" do
   before :each do
     @exception, = EncodingSpecs::InvalidByteSequenceError.exception
     @exception2, = EncodingSpecs::InvalidByteSequenceErrorIndirect.exception
@@ -31,5 +30,4 @@ with_feature :encoding do
   it "is equal to the source encoding at the stage of the conversion path where the error occurred" do
     @exception2.source_encoding.should == Encoding::EUC_JP
   end
-  end
 end

spec/ruby/core/encoding/list_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding.list" do
+describe "Encoding.list" do
   it "returns an Array" do
     Encoding.list.should be_an_instance_of(Array)
   end
@@ -39,5 +38,4 @@ with_feature :encoding do
 
   # TODO: Find example that illustrates this
   it "updates the list when #find is used to load a new encoding"
-  end
 end

spec/ruby/core/encoding/locale_charmap_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding.locale_charmap" do
+describe "Encoding.locale_charmap" do
   it "returns a String" do
     Encoding.locale_charmap.should be_an_instance_of(String)
   end
@@ -43,5 +42,4 @@ with_feature :encoding do
       ENV['LC_ALL'] = old_lc_all
     end
   end
-  end
 end

spec/ruby/core/encoding/name_list_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding.name_list" do
+describe "Encoding.name_list" do
   it "returns an Array" do
     Encoding.name_list.should be_an_instance_of(Array)
   end
@@ -21,5 +20,4 @@ with_feature :encoding do
       Encoding.name_list.include?(enc.name).should be_true
     end
   end
-  end
 end

spec/ruby/core/encoding/name_spec.rb

@@ -1,7 +1,5 @@
 require_relative 'shared/name'
 
-with_feature :encoding do
-  describe "Encoding#name" do
+describe "Encoding#name" do
   it_behaves_like :encoding_name, :name
-  end
 end

spec/ruby/core/encoding/names_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding#names" do
+describe "Encoding#names" do
   it "returns an Array" do
     Encoding.name_list.each do |name|
       e = Encoding.find(name) or next
@@ -33,5 +32,4 @@ with_feature :encoding do
       aliases.each {|a| names.include?(a).should be_true}
     end
   end
-  end
 end

spec/ruby/core/encoding/replicate_spec.rb

@@ -1,8 +1,7 @@
 # -*- encoding: binary -*-
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding#replicate" do
+describe "Encoding#replicate" do
   before :all do
     @i = 0
   end
@@ -44,5 +43,4 @@ with_feature :encoding do
     e.name.should == name
     e.dummy?.should be_true
   end
-  end
 end

spec/ruby/core/encoding/to_s_spec.rb

@@ -1,7 +1,5 @@
 require_relative 'shared/name'
 
-with_feature :encoding do
-  describe "Encoding#to_s" do
+describe "Encoding#to_s" do
   it_behaves_like :encoding_name, :to_s
-  end
 end

spec/ruby/core/encoding/undefined_conversion_error/destination_encoding_name_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../fixtures/classes'
 
-with_feature :encoding do
-  describe "Encoding::UndefinedConversionError#destination_encoding_name" do
+describe "Encoding::UndefinedConversionError#destination_encoding_name" do
   before :each do
     @exception = EncodingSpecs::UndefinedConversionError.exception
   end
@@ -13,5 +12,4 @@ with_feature :encoding do
   it "is equal to the destination encoding name of the object that raised it" do
     @exception.destination_encoding_name.should == "US-ASCII"
   end
-  end
 end

spec/ruby/core/encoding/undefined_conversion_error/destination_encoding_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../fixtures/classes'
 
-with_feature :encoding do
-  describe "Encoding::UndefinedConversionError#destination_encoding" do
+describe "Encoding::UndefinedConversionError#destination_encoding" do
   before :each do
     @exception = EncodingSpecs::UndefinedConversionError.exception
   end
@@ -13,5 +12,4 @@ with_feature :encoding do
   it "is equal to the destination encoding of the object that raised it" do
     @exception.destination_encoding.should == Encoding::US_ASCII
   end
-  end
 end

spec/ruby/core/encoding/undefined_conversion_error/error_char_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../fixtures/classes'
 
-with_feature :encoding do
-  describe "Encoding::UndefinedConversionError#error_char" do
+describe "Encoding::UndefinedConversionError#error_char" do
   before :each do
     @exception = EncodingSpecs::UndefinedConversionError.exception
     @exception2 = EncodingSpecs::UndefinedConversionErrorIndirect.exception
@@ -25,5 +24,4 @@ with_feature :encoding do
 
     @exception2.error_char.encoding.should == @exception2.source_encoding
   end
-  end
 end

spec/ruby/core/encoding/undefined_conversion_error/source_encoding_name_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../fixtures/classes'
 
-with_feature :encoding do
-  describe "Encoding::UndefinedConversionError#source_encoding_name" do
+describe "Encoding::UndefinedConversionError#source_encoding_name" do
   before :each do
     @exception = EncodingSpecs::UndefinedConversionError.exception
     @exception2 = EncodingSpecs::UndefinedConversionErrorIndirect.exception
@@ -26,5 +25,4 @@ with_feature :encoding do
   it "is equal to the source encoding at the stage of the conversion path where the error occurred" do
     @exception2.source_encoding_name.should == 'UTF-8'
   end
-  end
 end

spec/ruby/core/encoding/undefined_conversion_error/source_encoding_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../fixtures/classes'
 
-with_feature :encoding do
-  describe "Encoding::UndefinedConversionError#source_encoding" do
+describe "Encoding::UndefinedConversionError#source_encoding" do
   before :each do
     @exception = EncodingSpecs::UndefinedConversionError.exception
     @exception2 = EncodingSpecs::UndefinedConversionErrorIndirect.exception
@@ -27,5 +26,4 @@ with_feature :encoding do
   it "is equal to the source encoding at the stage of the conversion path where the error occurred" do
     @exception2.source_encoding.should == Encoding::UTF_8
   end
-  end
 end

spec/ruby/core/env/element_reference_spec.rb

@@ -27,8 +27,7 @@ describe "ENV.[]" do
   end
 end
 
-with_feature :encoding do
-  describe "ENV.[]" do
+describe "ENV.[]" do
   before :each do
     @variable = "env_element_reference_encoding_specs"
 
@@ -62,5 +61,4 @@ with_feature :encoding do
 
     ENV[@variable].encoding.should equal(Encoding::IBM437)
   end
-  end
 end

spec/ruby/core/env/shared/each.rb

@@ -25,7 +25,6 @@ describe :env_each, shared: true do
   end
   it_should_behave_like :enumeratorized_with_origin_size
 
-  with_feature :encoding do
   describe "with encoding" do
     before :each do
       @external = Encoding.default_external
@@ -61,5 +60,4 @@ describe :env_each, shared: true do
       end
     end
   end
-  end
 end

spec/ruby/core/env/shift_spec.rb

@@ -24,8 +24,7 @@ describe "ENV.shift" do
   end
 end
 
-with_feature :encoding do
-  describe "ENV.shift" do
+describe "ENV.shift" do
   before :each do
     @orig = ENV.to_hash
     @external = Encoding.default_external
@@ -55,5 +54,4 @@ with_feature :encoding do
     pair.first.encoding.should equal(Encoding::IBM437)
     pair.last.encoding.should equal(Encoding::IBM437)
   end
-  end
 end

spec/ruby/core/fiber/new_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :fiber do
-  describe "Fiber.new" do
+describe "Fiber.new" do
   it "creates a fiber from the given block" do
     fiber = Fiber.new {}
     fiber.resume
@@ -37,5 +36,4 @@ with_feature :fiber do
     end
     o.f.should == 2
   end
-  end
 end

spec/ruby/core/fiber/resume_spec.rb

@@ -1,12 +1,11 @@
 require_relative '../../spec_helper'
 require_relative '../../shared/fiber/resume'
 
-with_feature :fiber do
-  describe "Fiber#resume" do
+describe "Fiber#resume" do
   it_behaves_like :fiber_resume, :resume
-  end
+end
 
-  describe "Fiber#resume" do
+describe "Fiber#resume" do
   it "raises a FiberError if the Fiber tries to resume itself" do
     fiber = Fiber.new { fiber.resume }
     -> { fiber.resume }.should raise_error(FiberError, /double resume/)
@@ -18,18 +17,14 @@ with_feature :fiber do
     fiber2.resume.should == :fiber2
   end
 
-    with_feature :fork do
   # Redmine #595
   it "executes the ensure clause" do
-        rd, wr = IO.pipe
-
-        pid = Kernel::fork do
-          rd.close
+    code = <<-RUBY
       f = Fiber.new do
         begin
           Fiber.yield
         ensure
-              wr.write "executed"
+          puts "ensure executed"
         end
       end
 
@@ -46,14 +41,8 @@ with_feature :fiber do
       f.resume
 
       exit 0
-        end
+    RUBY
 
-        wr.close
-        Process.waitpid pid
-
-        rd.read.should == "executed"
-        rd.close
-      end
-    end
+    ruby_exe(code).should == "ensure executed\n"
   end
 end

spec/ruby/core/fiber/yield_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :fiber do
-  describe "Fiber.yield" do
+describe "Fiber.yield" do
   it "passes control to the Fiber's caller" do
     step = 0
     fiber = Fiber.new { step = 1; Fiber.yield; step = 2; Fiber.yield; step = 3 }
@@ -47,5 +46,4 @@ with_feature :fiber do
   it "raises a FiberError if called from the root Fiber" do
     lambda{ Fiber.yield }.should raise_error(FiberError)
   end
-  end
 end

spec/ruby/core/file/basename_spec.rb

@@ -153,7 +153,6 @@ describe "File.basename" do
     end
   end
 
-  with_feature :encoding do
 
   it "returns the extension for a multibyte filename" do
     File.basename('/path/Офис.m4a').should == "Офис.m4a"
@@ -165,6 +164,5 @@ describe "File.basename" do
     basename.encoding.should == Encoding::Windows_1250
   end
 
-  end
 
 end

spec/ruby/core/file/expand_path_spec.rb

@@ -19,7 +19,6 @@ describe "File.expand_path" do
     end
   end
 
-  with_feature :encoding do
   before :each do
     @external = Encoding.default_external
   end
@@ -27,7 +26,6 @@ describe "File.expand_path" do
   after :each do
     Encoding.default_external = @external
   end
-  end
 
   it "converts a pathname to an absolute pathname" do
     File.expand_path('').should == @base
@@ -136,7 +134,6 @@ describe "File.expand_path" do
     end
   end
 
-  with_feature :encoding do
   it "returns a String in the same encoding as the argument" do
     Encoding.default_external = Encoding::SHIFT_JIS
 
@@ -165,7 +162,6 @@ describe "File.expand_path" do
       lambda { File.expand_path("./a") }.should raise_error(Encoding::CompatibilityError)
     end
   end
-  end
 
   it "does not modify the string argument" do
     str = "./a/b/../c"

spec/ruby/core/file/extname_spec.rb

@@ -44,11 +44,9 @@ describe "File.extname" do
     lambda { File.extname("foo.bar", "foo.baz") }.should raise_error(ArgumentError)
   end
 
-  with_feature :encoding do
 
   it "returns the extension for a multibyte filename" do
     File.extname('Имя.m4a').should == ".m4a"
   end
 
-  end
 end

spec/ruby/core/file/open_spec.rb

@@ -165,23 +165,6 @@ describe "File.open" do
     File.exist?(@file).should == true
   end
 
-  without_feature :mjit do # [ruby-core:90895] MJIT worker may leave fd open in a forked child. TODO: consider acquiring GVL from MJIT worker.
-    it "opens a file with a file descriptor d and a block" do
-      @fh = File.open(@file)
-      @fh.should be_kind_of(File)
-
-      lambda {
-        File.open(@fh.fileno) do |fh|
-          @fd = fh.fileno
-          @fh.close
-        end
-      }.should raise_error(Errno::EBADF)
-      lambda { File.open(@fd) }.should raise_error(Errno::EBADF)
-
-      File.exist?(@file).should == true
-    end
-  end
-
   it "opens a file that no exists when use File::WRONLY mode" do
     lambda { File.open(@nonexistent, File::WRONLY) }.should raise_error(Errno::ENOENT)
   end
@@ -673,7 +656,7 @@ describe "File.open when passed a file descriptor" do
   before do
     @content = "File#open when passed a file descriptor"
     @name = tmp("file_open_with_fd.txt")
-    @fd = new_fd @name, fmode("w:utf-8")
+    @fd = new_fd @name, "w:utf-8"
     @file = nil
   end
 

spec/ruby/core/file/shared/path.rb

@@ -44,13 +44,11 @@ describe :file_path, shared: true do
     end
   end
 
-  with_feature :encoding do
   it "preserves the encoding of the path" do
     path = @path.force_encoding("euc-jp")
     @file = File.new path
     @file.send(@method).encoding.should == Encoding.find("euc-jp")
   end
-  end
 
   ruby_version_is "2.5" do
     platform_is :linux do

spec/ruby/core/float/to_s_spec.rb

@@ -289,8 +289,7 @@ describe "Float#to_s" do
   end
 end
 
-with_feature :encoding do
-  describe "Float#to_s" do
+describe "Float#to_s" do
   before :each do
     @internal = Encoding.default_internal
   end
@@ -308,5 +307,4 @@ with_feature :encoding do
     Encoding.default_internal = Encoding::IBM437
     5.47.to_s.encoding.should equal(Encoding::US_ASCII)
   end
-  end
 end

spec/ruby/core/integer/to_s_spec.rb

@@ -29,7 +29,6 @@ describe "Integer#to_s" do
       end
     end
 
-    with_feature :encoding do
     before :each do
       @internal = Encoding.default_internal
     end
@@ -48,7 +47,6 @@ describe "Integer#to_s" do
       1.to_s.encoding.should equal(Encoding::US_ASCII)
     end
   end
-  end
 
   context "bignum" do
     describe "when given a base" do
@@ -76,7 +74,6 @@ describe "Integer#to_s" do
       end
     end
 
-    with_feature :encoding do
     before :each do
       @internal = Encoding.default_internal
     end
@@ -95,5 +92,4 @@ describe "Integer#to_s" do
       bignum_value.to_s.encoding.should equal(Encoding::US_ASCII)
     end
   end
-  end
 end

spec/ruby/core/io/external_encoding_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe :io_external_encoding_write, shared: true do
+describe :io_external_encoding_write, shared: true do
   describe "when Encoding.default_internal is nil" do
     before :each do
       Encoding.default_internal = nil
@@ -75,9 +74,9 @@ with_feature :encoding do
       @io.external_encoding.should equal(Encoding::EUC_JP)
     end
   end
-  end
+end
 
-  describe "IO#external_encoding" do
+describe "IO#external_encoding" do
   before :each do
     @external = Encoding.default_external
     @internal = Encoding.default_internal
@@ -214,5 +213,4 @@ with_feature :encoding do
   describe "with 'a+' mode" do
     it_behaves_like :io_external_encoding_write, nil, "a+"
   end
-  end
 end

spec/ruby/core/io/fixtures/classes.rb

@@ -118,10 +118,10 @@ module IOSpecs
 
   # Creates an IO instance for an existing fixture file. The
   # file should obviously not be deleted.
-  def self.io_fixture(name, options_or_mode="r:utf-8")
+  def self.io_fixture(name, mode = "r:utf-8")
     path = fixture __FILE__, name
     name = path if File.exist? path
-    new_io name, options_or_mode
+    new_io(name, mode)
   end
 
   # Returns a closed instance of IO that was opened to reference

spec/ruby/core/io/foreach_spec.rb

@@ -24,7 +24,7 @@ describe "IO.foreach" do
       ScratchPad.recorded.should == ["hello\n", "line2\n"]
     end
 
-    with_feature :fork do
+    platform_is_not :windows do
       it "gets data from a fork when passed -" do
         parent_pid = $$
 

spec/ruby/core/io/gets_spec.rb

@@ -156,11 +156,11 @@ describe "IO#gets" do
   end
 
   it "raises an IOError if the stream is opened for append only" do
-    lambda { File.open(@name, fmode("a:utf-8")) { |f| f.gets } }.should raise_error(IOError)
+    lambda { File.open(@name, "a:utf-8") { |f| f.gets } }.should raise_error(IOError)
   end
 
   it "raises an IOError if the stream is opened for writing only" do
-    lambda { File.open(@name, fmode("w:utf-8")) { |f| f.gets } }.should raise_error(IOError)
+    lambda { File.open(@name, "w:utf-8") { |f| f.gets } }.should raise_error(IOError)
   end
 end
 
@@ -168,7 +168,7 @@ describe "IO#gets" do
   before :each do
     @name = tmp("io_gets")
     touch(@name) { |f| f.write "one\n\ntwo\n\nthree\nfour\n" }
-    @io = new_io @name, fmode("r:utf-8")
+    @io = new_io @name, "r:utf-8"
   end
 
   after :each do
@@ -232,7 +232,7 @@ describe "IO#gets" do
     # create data "朝日" + "\xE3\x81" * 100 to avoid utf-8 conflicts
     data = "朝日" + ([227,129].pack('C*') * 100).force_encoding('utf-8')
     touch(@name) { |f| f.write data }
-    @io = new_io @name, fmode("r:utf-8")
+    @io = new_io @name, "r:utf-8"
   end
 
   after :each do

spec/ruby/core/io/initialize_spec.rb

@@ -13,15 +13,10 @@ describe "IO#initialize" do
     rm_r @name
   end
 
-  # File descriptor numbers are not predictable in multi-threaded code;
-  # MJIT will be opening/closing files the background
-  without_feature :mjit do
   it "reassociates the IO instance with the new descriptor when passed a Fixnum" do
     fd = new_fd @name, "r:utf-8"
     @io.send :initialize, fd, 'r'
     @io.fileno.should == fd
-      # initialize has closed the old descriptor
-      lambda { IO.for_fd(@fd).close }.should raise_error(Errno::EBADF)
   end
 
   it "calls #to_int to coerce the object passed as an fd" do
@@ -30,9 +25,6 @@ describe "IO#initialize" do
     obj.should_receive(:to_int).and_return(fd)
     @io.send :initialize, obj, 'r'
     @io.fileno.should == fd
-      # initialize has closed the old descriptor
-      lambda { IO.for_fd(@fd).close }.should raise_error(Errno::EBADF)
-    end
   end
 
   it "raises a TypeError when passed an IO" do

spec/ruby/core/io/internal_encoding_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe :io_internal_encoding, shared: true do
+describe :io_internal_encoding, shared: true do
   describe "when Encoding.default_internal is not set" do
     before :each do
       Encoding.default_internal = nil
@@ -94,9 +93,9 @@ with_feature :encoding do
       @io.internal_encoding.should be_nil
     end
   end
-  end
+end
 
-  describe "IO#internal_encoding" do
+describe "IO#internal_encoding" do
   before :each do
     @external = Encoding.default_external
     @internal = Encoding.default_internal
@@ -136,5 +135,4 @@ with_feature :encoding do
   describe "with 'a+' mode" do
     it_behaves_like :io_internal_encoding, nil, "a+"
   end
-  end
 end

spec/ruby/core/io/popen_spec.rb

@@ -136,7 +136,7 @@ describe "IO.popen" do
     end
   end
 
-  with_feature :fork do
+  platform_is_not :windows do
     it "starts returns a forked process if the command is -" do
       io = IO.popen("-")
 
@@ -153,7 +153,6 @@ describe "IO.popen" do
     end
   end
 
-  with_feature :encoding do
   it "has the given external encoding" do
     @io = IO.popen(ruby_cmd('exit'), external_encoding: Encoding::EUC_JP)
     @io.external_encoding.should == Encoding::EUC_JP
@@ -169,7 +168,6 @@ describe "IO.popen" do
                           internal_encoding: Encoding::EUC_JP)
     @io.internal_encoding.should be_nil
   end
-  end
 
   context "with a leading ENV Hash" do
     it "accepts a single String command" do

spec/ruby/core/io/puts_spec.rb

@@ -114,7 +114,6 @@ describe "IO#puts" do
     lambda { IOSpecs.closed_io.puts("stuff") }.should raise_error(IOError)
   end
 
-  with_feature :encoding do
   it "writes crlf when IO is opened with newline: :crlf" do
     File.open(@name, 'wt', newline: :crlf) do |file|
       file.puts
@@ -137,5 +136,4 @@ describe "IO#puts" do
       File.binread(@name).should == "\n"
     end
   end
-  end
 end

spec/ruby/core/io/read_spec.rb

@@ -95,7 +95,6 @@ describe "IO.read" do
     lambda { IO.read @fname, -1, -1 }.should raise_error(Errno::EINVAL)
   end
 
-  with_feature :encoding do
   it "uses the external encoding specified via the :external_encoding option" do
     str = IO.read(@fname, external_encoding: Encoding::ISO_8859_1)
     str.encoding.should == Encoding::ISO_8859_1
@@ -105,7 +104,6 @@ describe "IO.read" do
     str = IO.read(@fname, encoding: Encoding::ISO_8859_1)
     str.encoding.should == Encoding::ISO_8859_1
   end
-  end
 end
 
 describe "IO.read from a pipe" do
@@ -117,7 +115,7 @@ describe "IO.read from a pipe" do
     IO.read(cmd).should == "hello\n"
   end
 
-  with_feature :fork do
+  platform_is_not :windows do
     it "opens a pipe to a fork if the rest is -" do
       str = IO.read("|-")
       if str # parent
@@ -456,8 +454,7 @@ describe "IO.read with BOM" do
   end
 end
 
-with_feature :encoding do
-  describe :io_read_internal_encoding, shared: true do
+describe :io_read_internal_encoding, shared: true do
   it "returns a transcoded String" do
     @io.read.should == "ありがとう\n"
   end
@@ -479,9 +476,9 @@ with_feature :encoding do
       buf.encoding.should equal(Encoding::UTF_8)
     end
   end
-  end
+end
 
-  describe :io_read_size_internal_encoding, shared: true do
+describe :io_read_size_internal_encoding, shared: true do
   it "reads bytes when passed a size" do
     @io.read(2).should == [164, 162].pack('C*').force_encoding(Encoding::ASCII_8BIT)
   end
@@ -505,9 +502,9 @@ with_feature :encoding do
     buf.size.should == 0
     buf.encoding.should equal(Encoding::ISO_8859_1)
   end
-  end
+end
 
-  describe "IO#read" do
+describe "IO#read" do
   describe "when IO#external_encoding and IO#internal_encoding are nil" do
     before :each do
       @name = tmp("io_read.txt")
@@ -586,7 +583,6 @@ with_feature :encoding do
       it_behaves_like :io_read_size_internal_encoding, nil
     end
   end
-  end
 end
 
 describe "IO#read with large data" do

spec/ruby/core/io/readlines_spec.rb

@@ -112,7 +112,7 @@ describe "IO#readlines" do
       lines.should == ["hello\n", "line2\n"]
     end
 
-    with_feature :fork do
+    platform_is_not :windows do
       it "gets data from a fork when passed -" do
         lines = IO.readlines("|-")
 
@@ -139,13 +139,13 @@ describe "IO#readlines" do
 
   it "raises an IOError if the stream is opened for append only" do
     lambda do
-      File.open(@name, fmode("a:utf-8")) { |f| f.readlines }
+      File.open(@name, "a:utf-8") { |f| f.readlines }
     end.should raise_error(IOError)
   end
 
   it "raises an IOError if the stream is opened for write only" do
     lambda do
-      File.open(@name, fmode("w:utf-8")) { |f| f.readlines }
+      File.open(@name, "w:utf-8") { |f| f.readlines }
     end.should raise_error(IOError)
   end
 end

spec/ruby/core/io/reopen_spec.rb

@@ -145,23 +145,6 @@ describe "IO#reopen with a String" do
     File.read(@other_name).should == "new data"
   end
 
-  # File descriptor numbers are not predictable in multi-threaded code;
-  # MJIT will be opening/closing files the background
-  without_feature :mjit do
-    it "closes the file descriptor obtained by opening the new file" do
-      @io = new_io @name, "w"
-
-      @other_io = File.open @other_name, "w"
-      max = @other_io.fileno
-      @other_io.close
-
-      @io.reopen @other_name
-
-      @other_io = File.open @other_name, "w"
-      @other_io.fileno.should == max
-    end
-  end
-
   it "always resets the close-on-exec flag to true on non-STDIO objects" do
     @io = new_io @name, "w"
 

spec/ruby/core/io/set_encoding_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe :io_set_encoding_write, shared: true do
+describe :io_set_encoding_write, shared: true do
   it "sets the encodings to nil" do
     @io = new_io @name, "#{@object}:ibm437:ibm866"
     @io.set_encoding nil, nil
@@ -32,9 +31,9 @@ with_feature :encoding do
     @io.external_encoding.should == Encoding::IBM437
     @io.internal_encoding.should == Encoding::IBM866
   end
-  end
+end
 
-  describe "IO#set_encoding when passed nil, nil" do
+describe "IO#set_encoding when passed nil, nil" do
   before :each do
     @external = Encoding.default_external
     @internal = Encoding.default_internal
@@ -114,9 +113,9 @@ with_feature :encoding do
   describe "with 'a+' mode" do
     it_behaves_like :io_set_encoding_write, nil, "a+"
   end
-  end
+end
 
-  describe "IO#set_encoding" do
+describe "IO#set_encoding" do
   before :each do
     @name = tmp('io_set_encoding.txt')
     touch(@name)
@@ -189,5 +188,4 @@ with_feature :encoding do
     @io.external_encoding.should == Encoding::UTF_8
     @io.internal_encoding.should == Encoding::UTF_16BE
   end
-  end
 end

spec/ruby/core/io/shared/write.rb

@@ -85,7 +85,11 @@ describe :io_write, shared: true do
       @r.read.should == "foo"
     end
 
-    without_feature :mjit do # [ruby-core:90895] MJIT worker may leave fd open in a forked child. TODO: consider acquiring GVL from MJIT worker.
+    # [ruby-core:90895] MJIT worker may leave fd open in a forked child.
+    # For instance, MJIT creates a worker before @r.close with fork(), @r.close happens,
+    # and the MJIT worker keeps the pipe open until the worker execve().
+    # TODO: consider acquiring GVL from MJIT worker.
+    guard_not -> { defined?(RubyVM::MJIT) && RubyVM::MJIT.enabled? } do
       it "raises Errno::EPIPE if the read end is closed and does not die from SIGPIPE" do
         @r.close
         -> { @w.send(@method, "foo") }.should raise_error(Errno::EPIPE, /Broken pipe/)

spec/ruby/core/io/write_spec.rb

@@ -28,7 +28,6 @@ describe "IO#write on a file" do
     @file.write('').should == 0
   end
 
-  with_feature :encoding do
   before :each do
     @external = Encoding.default_external
     @internal = Encoding.default_internal
@@ -73,7 +72,6 @@ describe "IO#write on a file" do
     res = "H#{ë}ll#{ö}"
     File.binread(@filename).should == res.force_encoding(Encoding::ASCII_8BIT)
   end
-  end
 end
 
 describe "IO.write" do

spec/ruby/core/kernel/chomp_spec.rb

@@ -40,8 +40,7 @@ describe "Kernel#chomp" do
   it_behaves_like :kernel_chomp_private, :chomp
 end
 
-with_feature :encoding do
-  describe :kernel_chomp_encoded, shared: true do
+describe :kernel_chomp_encoded, shared: true do
   before :each do
     @external = Encoding.default_external
     Encoding.default_external = Encoding::UTF_8
@@ -55,13 +54,12 @@ with_feature :encoding do
     script = fixture __FILE__, "#{@method}.rb"
     KernelSpecs.run_with_dash_n(script).should == "あれ"
   end
-  end
-
-  describe "Kernel.chomp" do
-    it_behaves_like :kernel_chomp_encoded, "chomp"
-  end
-
-  describe "Kernel#chomp" do
-    it_behaves_like :kernel_chomp_encoded, "chomp_f"
-  end
+end
+
+describe "Kernel.chomp" do
+  it_behaves_like :kernel_chomp_encoded, "chomp"
+end
+
+describe "Kernel#chomp" do
+  it_behaves_like :kernel_chomp_encoded, "chomp_f"
 end

spec/ruby/core/kernel/chop_spec.rb

@@ -28,8 +28,7 @@ describe "Kernel#chop" do
   it_behaves_like :kernel_chop, "chop"
 end
 
-with_feature :encoding do
-  describe :kernel_chop_encoded, shared: true do
+describe :kernel_chop_encoded, shared: true do
   before :each do
     @external = Encoding.default_external
     Encoding.default_external = Encoding::UTF_8
@@ -43,13 +42,12 @@ with_feature :encoding do
     script = fixture __FILE__, "#{@method}.rb"
     KernelSpecs.run_with_dash_n(script).should == "あ"
   end
-  end
-
-  describe "Kernel.chop" do
-    it_behaves_like :kernel_chop_encoded, "chop"
-  end
-
-  describe "Kernel#chop" do
-    it_behaves_like :kernel_chop_encoded, "chop_f"
-  end
+end
+
+describe "Kernel.chop" do
+  it_behaves_like :kernel_chop_encoded, "chop"
+end
+
+describe "Kernel#chop" do
+  it_behaves_like :kernel_chop_encoded, "chop_f"
 end

spec/ruby/core/marshal/dump_spec.rb

@@ -204,7 +204,6 @@ describe "Marshal.dump" do
       Marshal.dump(str.force_encoding("binary")).should == "\x04\bI\"\x00\x06:\t@foo\"\bbar"
     end
 
-    with_feature :encoding do
     it "dumps a US-ASCII String" do
       str = "abc".force_encoding("us-ascii")
       Marshal.dump(str).should == "\x04\bI\"\babc\x06:\x06EF"
@@ -225,7 +224,6 @@ describe "Marshal.dump" do
       Marshal.dump(["".encode("us-ascii"), "".encode("utf-8")]).should == "\x04\b[\aI\"\x00\x06:\x06EFI\"\x00\x06;\x00T"
     end
   end
-  end
 
   describe "with a Regexp" do
     it "dumps a Regexp" do
@@ -541,7 +539,6 @@ describe "Marshal.dump" do
       lambda { Marshal.dump("test", obj) }.should raise_error(TypeError)
     end
 
-    with_feature :encoding do
 
     it "calls binmode when it's defined" do
       obj = mock('test')
@@ -550,7 +547,6 @@ describe "Marshal.dump" do
       Marshal.dump("test", obj)
     end
 
-    end
 
   end
 

spec/ruby/core/marshal/shared/load.rb

@@ -422,7 +422,6 @@ describe :marshal_load, shared: true do
       str.should be_an_instance_of(UserCustomConstructorString)
     end
 
-    with_feature :encoding do
     it "loads a US-ASCII String" do
       str = "abc".force_encoding("us-ascii")
       data = "\x04\bI\"\babc\x06:\x06EF"
@@ -455,7 +454,6 @@ describe :marshal_load, shared: true do
       result.should == str
     end
   end
-  end
 
   describe "for a Struct" do
     it "loads a extended_struct having fields with same objects" do

spec/ruby/core/matchdata/post_match_spec.rb

@@ -22,7 +22,6 @@ describe "MatchData#post_match" do
     $'.untrusted?.should be_true
   end
 
-  with_feature :encoding do
   it "sets the encoding to the encoding of the source String" do
     str = "abc".force_encoding Encoding::EUC_JP
     str.match(/b/).post_match.encoding.should equal(Encoding::EUC_JP)
@@ -32,5 +31,4 @@ describe "MatchData#post_match" do
     str = "abc".force_encoding Encoding::ISO_8859_1
     str.match(/c/).post_match.encoding.should equal(Encoding::ISO_8859_1)
   end
-  end
 end

spec/ruby/core/matchdata/pre_match_spec.rb

@@ -22,7 +22,6 @@ describe "MatchData#pre_match" do
     $`.untrusted?.should be_true
   end
 
-  with_feature :encoding do
   it "sets the encoding to the encoding of the source String" do
     str = "abc".force_encoding Encoding::EUC_JP
     str.match(/b/).pre_match.encoding.should equal(Encoding::EUC_JP)
@@ -32,5 +31,4 @@ describe "MatchData#pre_match" do
     str = "abc".force_encoding Encoding::ISO_8859_1
     str.match(/a/).pre_match.encoding.should equal(Encoding::ISO_8859_1)
   end
-  end
 end

spec/ruby/core/objectspace/define_finalizer_spec.rb

@@ -3,8 +3,6 @@ require_relative 'fixtures/classes'
 
 # NOTE: A call to define_finalizer does not guarantee that the
 # passed proc or callable will be called at any particular time.
-# It is highly questionable whether these aspects of ObjectSpace
-# should be spec'd at all.
 describe "ObjectSpace.define_finalizer" do
   it "raises an ArgumentError if the action does not respond to call" do
     lambda {
@@ -30,72 +28,41 @@ describe "ObjectSpace.define_finalizer" do
   end
 
   # see [ruby-core:24095]
-  with_feature :fork do
   it "calls finalizer on process termination" do
-      rd, wr = IO.pipe
-      pid = Process.fork do
-        rd.close
-        handler = ObjectSpaceFixtures.scoped(wr)
+    code = <<-RUBY
+      def scoped
+        Proc.new { puts "finalized" }
+      end
+      handler = scoped
       obj = "Test"
       ObjectSpace.define_finalizer(obj, handler)
       exit 0
-      end
+    RUBY
 
-      wr.close
-      begin
-        rd.read.should == "finalized"
-      ensure
-        rd.close
-        Process.wait pid
-      end
+    ruby_exe(code).should == "finalized\n"
   end
 
   it "calls finalizer at exit even if it is self-referencing" do
-      rd, wr = IO.pipe
-      pid = Process.fork do
-        rd.close
+    code = <<-RUBY
       obj = "Test"
-        handler = Proc.new { wr.write "finalized"; wr.close }
+      handler = Proc.new { puts "finalized" }
       ObjectSpace.define_finalizer(obj, handler)
       exit 0
+    RUBY
+
+    ruby_exe(code).should == "finalized\n"
   end
 
-      wr.close
-      begin
-        rd.read.should == "finalized"
-      ensure
-        rd.close
-        Process.wait pid
-      end
-    end
-
-    # These specs are defined under the fork specs because there is no
-    # deterministic way to force finalizers to be run, except process exit, so
-    # we rely on that.
   it "allows multiple finalizers with different 'callables' to be defined" do
-      rd1, wr1 = IO.pipe
-      rd2, wr2 = IO.pipe
+    code = <<-RUBY
+      obj = Object.new
 
-      pid = Kernel::fork do
-        rd1.close
-        rd2.close
-        obj = mock("ObjectSpace.define_finalizer multiple")
-
-        ObjectSpace.define_finalizer(obj, Proc.new { wr1.write "finalized1"; wr1.close })
-        ObjectSpace.define_finalizer(obj, Proc.new { wr2.write "finalized2"; wr2.close })
+      ObjectSpace.define_finalizer(obj, Proc.new { STDOUT.write "finalized1\n" })
+      ObjectSpace.define_finalizer(obj, Proc.new { STDOUT.write "finalized2\n" })
 
       exit 0
-      end
+    RUBY
 
-      wr1.close
-      wr2.close
-
-      rd1.read.should == "finalized1"
-      rd2.read.should == "finalized2"
-
-      rd1.close
-      rd2.close
-      Process.wait pid
-    end
+    ruby_exe(code).lines.sort.should == ["finalized1\n", "finalized2\n"]
   end
 end

spec/ruby/core/process/euid_spec.rb

@@ -33,25 +33,12 @@ describe "Process.euid=" do
 
     as_superuser do
       describe "if run by a superuser" do
-        with_feature :fork do
         it "sets the effective user id for the current process if run by a superuser" do
-            read, write = IO.pipe
-            pid = Process.fork do
-              begin
-                read.close
+          code = <<-RUBY
             Process.euid = 1
-                write << Process.euid
-                write.close
-              rescue Exception => e
-                write << e << e.backtrace
-              end
-              Process.exit!
-            end
-            write.close
-            euid = read.gets
-            euid.should == "1"
-            Process.wait pid
-          end
+            puts Process.euid
+          RUBY
+          ruby_exe(code).should == "1\n"
         end
       end
     end

spec/ruby/core/process/ppid_spec.rb

@@ -1,23 +1,7 @@
 require_relative '../../spec_helper'
 
 describe "Process.ppid" do
-  with_feature :fork do
   it "returns the process id of the parent of this process" do
-
-      read, write = IO.pipe
-
-      child_pid = Process.fork {
-        read.close
-        write << "#{Process.ppid}\n"
-        write.close
-        exit!
-      }
-
-      write.close
-      pid = read.gets
-      read.close
-      Process.wait(child_pid)
-      pid.to_i.should == Process.pid
-    end
+    ruby_exe("puts Process.ppid").should == "#{Process.pid}\n"
   end
 end

spec/ruby/core/process/setpgid_spec.rb

@@ -1,7 +1,8 @@
 require_relative '../../spec_helper'
 
 describe "Process.setpgid" do
-  with_feature :fork do
+  platform_is_not :windows do
+    # Must use fork as setpgid(2) gives EACCESS after execve()
     it "sets the process group id of the specified process" do
       rd, wr = IO.pipe
 

spec/ruby/core/process/setsid_spec.rb

@@ -1,37 +1,16 @@
 require_relative '../../spec_helper'
 
 describe "Process.setsid" do
-  with_feature :fork do
+  platform_is_not :windows do
     it "establishes this process as a new session and process group leader" do
-      read, write = IO.pipe
-      read2, write2 = IO.pipe
-      pid = Process.fork {
-        begin
-          read.close
-          write2.close
-          pgid = Process.setsid
-          write << pgid
-          write.close
-          read2.gets
-        rescue Exception => e
-          write << e << e.backtrace
-        end
-        Process.exit!
-      }
-      write.close
-      read2.close
-      pgid_child = Integer(read.gets)
-      read.close
-      platform_is_not :aix, :openbsd do
-        # AIX does not allow Process.getsid(pid)
-        # if pid is in a different session.
-        pgid = Process.getsid(pid)
-        pgid_child.should == pgid
-      end
-      write2.close
-      Process.wait pid
+      sid = Process.getsid
 
-      pgid_child.should_not == Process.getsid
+      out = ruby_exe("p Process.getsid; p Process.setsid; p Process.getsid").lines
+      out[0].should == "#{sid}\n"
+      out[1].should == out[2]
+      out[2].should_not == "#{sid}\n"
+
+      sid.should == Process.getsid
     end
   end
 end

spec/ruby/core/process/uid_spec.rb

@@ -18,7 +18,6 @@ describe "Process.uid" do
 end
 
 describe "Process.uid=" do
-
   platform_is_not :windows do
     it "raises TypeError if not passed an Integer" do
       lambda { Process.uid = Object.new }.should raise_error(TypeError)
@@ -36,49 +35,23 @@ describe "Process.uid=" do
 
     as_superuser do
       describe "if run by a superuser" do
-        with_feature :fork do
         it "sets the real user id for the current process" do
-            read, write = IO.pipe
-            pid = Process.fork do
-              begin
-                read.close
+          code = <<-RUBY
             Process.uid = 1
-                write << Process.uid
-                write.close
-              rescue Exception => e
-                write << e << e.backtrace
-              end
-              Process.exit!
-            end
-            write.close
-            uid = read.gets
-            uid.should == "1"
-            Process.wait pid
+            puts Process.uid
+          RUBY
+          ruby_exe(code).should == "1\n"
         end
 
         it "sets the real user id if preceded by Process.euid=id" do
-            read, write = IO.pipe
-            pid = Process.fork do
-              begin
-                read.close
+          code = <<-RUBY
             Process.euid = 1
             Process.uid = 1
-                write << Process.uid
-                write.close
-              rescue Exception => e
-                write << e << e.backtrace
-              end
-              Process.exit!
-            end
-            write.close
-            uid = read.gets
-            uid.should == "1"
-            Process.wait pid
+            puts Process.uid
+          RUBY
+          ruby_exe(code).should == "1\n"
         end
       end
     end
   end
-  end
-
-  it "needs to be reviewed for spec completeness"
 end

spec/ruby/core/process/wait2_spec.rb

@@ -8,9 +8,7 @@ describe "Process.wait2" do
     # but we shouldn't reap them from Ruby-space
     begin
       Process.wait(-1, Process::WNOHANG)
-      without_feature :mjit do
       $stderr.puts "Leaked process before wait2 specs! Waiting for it"
-      end
       leaked = Process.waitall
       $stderr.puts "leaked before wait2 specs: #{leaked}" unless leaked.empty?
       # Ruby-space should not see PIDs used by mjit

spec/ruby/core/regexp/match_spec.rb

@@ -44,7 +44,6 @@ describe "Regexp#match" do
         /(.).(.)/.match("01234", 1).captures.should == ["1", "3"]
       end
 
-      with_feature :encoding do
       it "uses the start as a character offset" do
         /(.).(.)/.match("零一二三四", 1).captures.should == ["一", "三"]
       end
@@ -54,14 +53,12 @@ describe "Regexp#match" do
         lambda { /(.).(.)/.match("Hello, #{x96} world!", 1) }.should raise_error(ArgumentError)
       end
     end
-    end
 
     describe "when given a negative position" do
       it "matches the input at a given position" do
         /(.).(.)/.match("01234", -4).captures.should == ["1", "3"]
       end
 
-      with_feature :encoding do
       it "uses the start as a character offset" do
         /(.).(.)/.match("零一二三四", -4).captures.should == ["一", "三"]
       end
@@ -71,7 +68,6 @@ describe "Regexp#match" do
         lambda { /(.).(.)/.match("Hello, #{x96} world!", -1) }.should raise_error(ArgumentError)
       end
     end
-    end
 
     describe "when passed a block" do
       it "yields the MatchData" do

spec/ruby/core/string/ascii_only_spec.rb

@@ -2,8 +2,7 @@
 require_relative '../../spec_helper'
 require_relative 'fixtures/classes'
 
-with_feature :encoding do
-  describe "String#ascii_only?" do
+describe "String#ascii_only?" do
   describe "with ASCII only characters" do
     it "returns true if the encoding is UTF-8" do
       [ ["hello",                         true],
@@ -81,5 +80,4 @@ with_feature :encoding do
   it "returns false when replacing an ASCII String with a non-ASCII String" do
     "".replace("λ").ascii_only?.should be_false
   end
-  end
 end

spec/ruby/core/string/b_spec.rb

@@ -2,7 +2,6 @@
 require_relative '../../spec_helper'
 
 describe "String#b" do
-  with_feature :encoding do
   it "returns an ASCII-8BIT encoded string" do
     "Hello".b.should == "Hello".force_encoding(Encoding::ASCII_8BIT)
     "こんちには".b.should == "こんちには".force_encoding(Encoding::ASCII_8BIT)
@@ -20,5 +19,4 @@ describe "String#b" do
     ret.tainted?.should be_true
     ret.untrusted?.should be_true
   end
-  end
 end

spec/ruby/core/string/bytes_spec.rb

@@ -36,8 +36,7 @@ describe "String#bytes" do
   end
 end
 
-with_feature :encoding do
-  describe "String#bytes" do
+describe "String#bytes" do
   before :each do
     @utf8 = "東京"
     @ascii = 'Tokyo'
@@ -53,5 +52,4 @@ with_feature :encoding do
   it "is unaffected by #force_encoding" do
     @utf8.force_encoding('ASCII').bytes.to_a.should == @utf8.bytes.to_a
   end
-  end
 end

spec/ruby/core/string/bytesize_spec.rb

@@ -2,8 +2,7 @@
 require_relative '../../spec_helper'
 require_relative 'fixtures/classes'
 
-with_feature :encoding do
-  describe "#String#bytesize" do
+describe "#String#bytesize" do
   it "needs to be reviewed for spec completeness"
 
   it "returns the length of self in bytes" do
@@ -33,5 +32,4 @@ with_feature :encoding do
     "".force_encoding('ASCII').bytesize.should == 0
     "".force_encoding('UTF-8').bytesize.should == 0
   end
-  end
 end

spec/ruby/core/string/byteslice_spec.rb

@@ -17,13 +17,11 @@ describe "String#byteslice with Range" do
   it_behaves_like :string_slice_range, :byteslice
 end
 
-with_feature :encoding do
-  describe "String#byteslice on on non ASCII strings" do
+describe "String#byteslice on on non ASCII strings" do
   it "returns byteslice of unicode strings" do
     "\u3042".byteslice(1).should == "\x81".force_encoding("UTF-8")
     "\u3042".byteslice(1, 2).should == "\x81\x82".force_encoding("UTF-8")
     "\u3042".byteslice(1..2).should == "\x81\x82".force_encoding("UTF-8")
     "\u3042".byteslice(-1).should == "\x82".force_encoding("UTF-8")
   end
-  end
 end

spec/ruby/core/string/center_spec.rb

@@ -104,7 +104,6 @@ describe "String#center with length, padding" do
     "hello".center(6, 'X'.taint).tainted?.should be_true
   end
 
-  with_feature :encoding do
   describe "with width" do
     it "returns a String in the same encoding as the original" do
       str = "abc".force_encoding Encoding::IBM437
@@ -129,5 +128,4 @@ describe "String#center with length, padding" do
       end.should raise_error(Encoding::CompatibilityError)
     end
   end
-  end
 end

spec/ruby/core/string/chomp_spec.rb

@@ -330,8 +330,7 @@ describe "String#chomp!" do
   end
 end
 
-with_feature :encoding do
-  describe "String#chomp" do
+describe "String#chomp" do
   before :each do
     @before_separator = $/
   end
@@ -358,9 +357,9 @@ with_feature :encoding do
     str = "abc\r\n".encode "utf-32be"
     str.chomp.should == "abc".encode("utf-32be")
   end
-  end
+end
 
-  describe "String#chomp!" do
+describe "String#chomp!" do
   before :each do
     @before_separator = $/
   end
@@ -387,5 +386,4 @@ with_feature :encoding do
     str = "abc\r\n".encode "utf-32be"
     str.chomp!.should == "abc".encode("utf-32be")
   end
-  end
 end

spec/ruby/core/string/chop_spec.rb

@@ -27,7 +27,6 @@ describe "String#chop" do
     "abc\r\n\r\n".chop.should == "abc\r\n"
   end
 
-  with_feature :encoding do
   it "removes a multi-byte character" do
     "あれ".chop.should == "あ"
   end
@@ -40,7 +39,6 @@ describe "String#chop" do
     str = "abc\r\n".encode "utf-32be"
     str.chop.should == "abc".encode("utf-32be")
   end
-  end
 
   it "returns an empty string when applied to an empty string" do
     "".chop.should == ""
@@ -91,7 +89,6 @@ describe "String#chop!" do
     "abc\r\n\r\n".chop!.should == "abc\r\n"
   end
 
-  with_feature :encoding do
   it "removes a multi-byte character" do
     "あれ".chop!.should == "あ"
   end
@@ -104,7 +101,6 @@ describe "String#chop!" do
     str = "abc\r\n".encode "utf-32be"
     str.chop!.should == "abc".encode("utf-32be")
   end
-  end
 
   it "returns self if modifications were made" do
     str = "hello"

spec/ruby/core/string/chr_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe "String#chr" do
+describe "String#chr" do
   it "returns a copy of self" do
     s = 'e'
     s.should_not equal s.chr
@@ -40,5 +39,4 @@ with_feature :encoding do
     four.bytesize.should == 4
     "#{three}#{four}".chr.should == three
   end
-  end
 end

spec/ruby/core/string/clear_spec.rb

@@ -1,7 +1,6 @@
 require_relative '../../spec_helper'
 
-with_feature :encoding do
-  describe "String#clear" do
+describe "String#clear" do
   before :each do
     @s = "Jolene"
   end
@@ -35,5 +34,4 @@ with_feature :encoding do
     lambda { @s.clear        }.should raise_error(frozen_error_class)
     lambda { "".freeze.clear }.should raise_error(frozen_error_class)
   end
-  end
 end

spec/ruby/core/string/codepoints_spec.rb

@@ -3,8 +3,7 @@ require_relative '../../spec_helper'
 require_relative 'shared/codepoints'
 require_relative 'shared/each_codepoint_without_block'
 
-with_feature :encoding do
-  describe "String#codepoints" do
+describe "String#codepoints" do
   it_behaves_like :string_codepoints, :codepoints
 
   it "returns an Array when no block is given" do
@@ -16,5 +15,4 @@ with_feature :encoding do
     s.valid_encoding?.should be_false
     lambda { s.codepoints }.should raise_error(ArgumentError)
   end
-  end
 end

spec/ruby/core/string/downcase_spec.rb

@@ -174,9 +174,7 @@ describe "String#downcase!" do
     lambda { "hello".freeze.downcase! }.should raise_error(frozen_error_class)
   end
 
-  with_feature :encoding do
   it "sets the result String encoding to the source String encoding" do
     "ABC".downcase.encoding.should equal(Encoding::UTF_8)
   end
-  end
 end

spec/ruby/core/string/each_codepoint_spec.rb

@@ -2,9 +2,7 @@ require_relative '../../spec_helper'
 require_relative 'shared/codepoints'
 require_relative 'shared/each_codepoint_without_block'
 
-with_feature :encoding do
-  describe "String#each_codepoint" do
+describe "String#each_codepoint" do
   it_behaves_like :string_codepoints, :each_codepoint
   it_behaves_like :string_each_codepoint_without_block, :each_codepoint
-  end
 end