3 files changed, 4 insertions, 5 deletions
diff --git a/spec/ruby/core/string/chr_spec.rb b/spec/ruby/core/string/chr_spec.rb
index c7834b78b7..a5e0cc4c88 100644
--- a/spec/ruby/core/string/chr_spec.rb
+++ b/spec/ruby/core/string/chr_spec.rb
@@ -4,7 +4,7 @@ with_feature :encoding do
   describe "String#chr" do
     it "returns a copy of self" do
       s = 'e'
-      s.object_id.should_not == s.chr.object_id
+      s.should_not equal s.chr
     end
 
     it "returns a String" do
diff --git a/spec/ruby/core/string/clear_spec.rb b/spec/ruby/core/string/clear_spec.rb
index c1bab8f39e..3db8b54cb0 100644
--- a/spec/ruby/core/string/clear_spec.rb
+++ b/spec/ruby/core/string/clear_spec.rb
@@ -14,7 +14,7 @@ with_feature :encoding do
     it "returns self after emptying it" do
       cleared = @s.clear
       cleared.should == ""
-      cleared.object_id.should == @s.object_id
+      cleared.should equal @s
     end
 
     it "preserves its encoding" do
diff --git a/spec/ruby/core/string/freeze_spec.rb b/spec/ruby/core/string/freeze_spec.rb
index bd7c2fbc73..476f50fbed 100644
--- a/spec/ruby/core/string/freeze_spec.rb
+++ b/spec/ruby/core/string/freeze_spec.rb
@@ -3,12 +3,11 @@ require File.expand_path('../../../spec_helper', __FILE__)
 describe "String#freeze" do
 
   it "produces the same object whenever called on an instance of a literal in the source" do
-    ids = Array.new(2) { "abc".freeze.object_id }
-    ids.first.should == ids.last
+    "abc".freeze.should equal "abc".freeze
   end
 
   it "doesn't produce the same object for different instances of literals in the source" do
-    "abc".object_id.should_not == "abc".object_id
+    "abc".should_not equal "abc"
   end
 
   it "being a special form doesn't change the value of defined?" do