1 files changed, 5 insertions, 5 deletions
diff --git a/spec/ruby/optional/capi/debug_spec.rb b/spec/ruby/optional/capi/debug_spec.rb
index 14ba25609c..547b24cfcc 100644
--- a/spec/ruby/optional/capi/debug_spec.rb
+++ b/spec/ruby/optional/capi/debug_spec.rb
@@ -9,7 +9,7 @@ describe "C-API Debug function" do
 
   describe "rb_debug_inspector_open" do
     it "creates a debug context and calls the given callback" do
-      @o.rb_debug_inspector_open(42).should be_kind_of(Array)
+      @o.rb_debug_inspector_open(42).should.is_a?(Array)
       @o.debug_spec_callback_data.should == 42
     end
   end
@@ -31,7 +31,7 @@ describe "C-API Debug function" do
     it "returns the current binding" do
       a = "test"
       b = @o.rb_debug_inspector_frame_binding_get(1)
-      b.should be_an_instance_of(Binding)
+      b.should.instance_of?(Binding)
       b.local_variable_get(:a).should == "test"
     end
 
@@ -55,7 +55,7 @@ describe "C-API Debug function" do
   describe "rb_debug_inspector_frame_iseq_get" do
     it "returns an InstructionSequence" do
       if defined?(RubyVM::InstructionSequence)
-        @o.rb_debug_inspector_frame_iseq_get(1).should be_an_instance_of(RubyVM::InstructionSequence)
+        @o.rb_debug_inspector_frame_iseq_get(1).should.instance_of?(RubyVM::InstructionSequence)
       else
         @o.rb_debug_inspector_frame_iseq_get(1).should == nil
       end
@@ -66,9 +66,9 @@ describe "C-API Debug function" do
     it "returns an array of Thread::Backtrace::Location" do
       bts = @o.rb_debug_inspector_backtrace_locations
       bts.should_not.empty?
-      bts.each { |bt| bt.should be_kind_of(Thread::Backtrace::Location) }
+      bts.each { |bt| bt.should.is_a?(Thread::Backtrace::Location) }
       location = "#{__FILE__}:#{__LINE__ - 3}"
-      bts[1].to_s.should include(location)
+      bts[1].to_s.should.include?(location)
     end
   end
 end