1 files changed, 5 insertions, 19 deletions
diff --git a/spec/ruby/core/module/extend_object_spec.rb b/spec/ruby/core/module/extend_object_spec.rb
index e66b87efef..b428eb7924 100644
--- a/spec/ruby/core/module/extend_object_spec.rb
+++ b/spec/ruby/core/module/extend_object_spec.rb
@@ -7,18 +7,18 @@ describe "Module#extend_object" do
   end
 
   it "is a private method" do
-    Module.should have_private_instance_method(:extend_object)
+    Module.private_instance_methods(false).should.include?(:extend_object)
   end
 
   describe "on Class" do
     it "is undefined" do
-      Class.should_not have_private_instance_method(:extend_object, true)
+      Class.private_instance_methods(true).should_not.include?(:extend_object)
     end
 
     it "raises a TypeError if calling after rebinded to Class" do
       -> {
         Module.instance_method(:extend_object).bind(Class.new).call Object.new
-      }.should raise_error(TypeError)
+      }.should.raise(TypeError)
     end
   end
 
@@ -42,20 +42,6 @@ describe "Module#extend_object" do
     ScratchPad.recorded.should == :extended
   end
 
-  ruby_version_is ''...'2.7' do
-    it "does not copy own tainted status to the given object" do
-      other = Object.new
-      Module.new.taint.send :extend_object, other
-      other.tainted?.should be_false
-    end
-
-    it "does not copy own untrusted status to the given object" do
-      other = Object.new
-      Module.new.untrust.send :extend_object, other
-      other.untrusted?.should be_false
-    end
-  end
-
   describe "when given a frozen object" do
     before :each do
       @receiver = Module.new
@@ -63,8 +49,8 @@ describe "Module#extend_object" do
     end
 
     it "raises a RuntimeError before extending the object" do
-      -> { @receiver.send(:extend_object, @object) }.should raise_error(RuntimeError)
-      @object.should_not be_kind_of(@receiver)
+      -> { @receiver.send(:extend_object, @object) }.should.raise(RuntimeError)
+      @object.should_not.is_a?(@receiver)
     end
   end
 end