Update to ruby/spec@89175b2

4 files changed, 8 insertions, 7 deletions

diff --git a/spec/ruby/core/matchdata/element_reference_spec.rb b/spec/ruby/core/matchdata/element_reference_spec.rb
index 1be399cfe1..806db2d7b5 100644
--- a/spec/ruby/core/matchdata/element_reference_spec.rb
+++ b/spec/ruby/core/matchdata/element_reference_spec.rb
@@ -113,7 +113,7 @@ describe "MatchData#[Symbol]" do
 
   it "returns matches in the String's encoding" do
     rex = /(?<t>t(?<a>ack))/u
-    md = 'haystack'.force_encoding('euc-jp').match(rex)
+    md = 'haystack'.dup.force_encoding('euc-jp').match(rex)
     md[:t].encoding.should == Encoding::EUC_JP
   end
 end
diff --git a/spec/ruby/core/matchdata/post_match_spec.rb b/spec/ruby/core/matchdata/post_match_spec.rb
index b8d1e032eb..7bfe6df119 100644
--- a/spec/ruby/core/matchdata/post_match_spec.rb
+++ b/spec/ruby/core/matchdata/post_match_spec.rb
@@ -8,12 +8,12 @@ describe "MatchData#post_match" do
   end
 
   it "sets the encoding to the encoding of the source String" do
-    str = "abc".force_encoding Encoding::EUC_JP
+    str = "abc".dup.force_encoding Encoding::EUC_JP
     str.match(/b/).post_match.encoding.should equal(Encoding::EUC_JP)
   end
 
   it "sets an empty result to the encoding of the source String" do
-    str = "abc".force_encoding Encoding::ISO_8859_1
+    str = "abc".dup.force_encoding Encoding::ISO_8859_1
     str.match(/c/).post_match.encoding.should equal(Encoding::ISO_8859_1)
   end
 
diff --git a/spec/ruby/core/matchdata/pre_match_spec.rb b/spec/ruby/core/matchdata/pre_match_spec.rb
index 741cb6e923..2f1ba9b8f6 100644
--- a/spec/ruby/core/matchdata/pre_match_spec.rb
+++ b/spec/ruby/core/matchdata/pre_match_spec.rb
@@ -8,12 +8,12 @@ describe "MatchData#pre_match" do
   end
 
   it "sets the encoding to the encoding of the source String" do
-    str = "abc".force_encoding Encoding::EUC_JP
+    str = "abc".dup.force_encoding Encoding::EUC_JP
     str.match(/b/).pre_match.encoding.should equal(Encoding::EUC_JP)
   end
 
   it "sets an empty result to the encoding of the source String" do
-    str = "abc".force_encoding Encoding::ISO_8859_1
+    str = "abc".dup.force_encoding Encoding::ISO_8859_1
     str.match(/a/).pre_match.encoding.should equal(Encoding::ISO_8859_1)
   end
 
diff --git a/spec/ruby/core/matchdata/string_spec.rb b/spec/ruby/core/matchdata/string_spec.rb
index 420233e1f3..952e953318 100644
--- a/spec/ruby/core/matchdata/string_spec.rb
+++ b/spec/ruby/core/matchdata/string_spec.rb
@@ -17,8 +17,9 @@ describe "MatchData#string" do
     md.string.should equal(md.string)
   end
 
-  it "returns a frozen copy of the matched string for gsub(String)" do
-    'he[[o'.gsub!('[', ']')
+  it "returns a frozen copy of the matched string for gsub!(String)" do
+    s = +'he[[o'
+    s.gsub!('[', ']')
     $~.string.should == 'he[[o'
     $~.string.should.frozen?
   end