2 files changed, 5 insertions, 6 deletions
diff --git a/spec/ruby/core/io/shared/binwrite.rb b/spec/ruby/core/io/shared/binwrite.rb
index 29310e1eaf..3649bb47ff 100644
--- a/spec/ruby/core/io/shared/binwrite.rb
+++ b/spec/ruby/core/io/shared/binwrite.rb
@@ -24,9 +24,9 @@ describe :io_binwrite, shared: true do
   it "creates a file if missing" do
     fn = @filename + "xxx"
     begin
-      File.exist?(fn).should be_false
+      File.should_not.exist?(fn)
       IO.send(@method, fn, "test")
-      File.exist?(fn).should be_true
+      File.should.exist?(fn)
     ensure
       rm_r fn
     end
@@ -35,9 +35,9 @@ describe :io_binwrite, shared: true do
   it "creates file if missing even if offset given" do
     fn = @filename + "xxx"
     begin
-      File.exist?(fn).should be_false
+      File.should_not.exist?(fn)
       IO.send(@method, fn, "test", 0)
-      File.exist?(fn).should be_true
+      File.should.exist?(fn)
     ensure
       rm_r fn
     end
diff --git a/spec/ruby/core/io/shared/tty.rb b/spec/ruby/core/io/shared/tty.rb
index 82a780a9f3..89ac08ec86 100644
--- a/spec/ruby/core/io/shared/tty.rb
+++ b/spec/ruby/core/io/shared/tty.rb
@@ -7,8 +7,7 @@ describe :io_tty, shared: true do
         # check to enabled tty
         File.open('/dev/tty') {}
       rescue Errno::ENXIO
-        # workaround for not configured environment like OS X
-        1.should == 1
+        skip "workaround for not configured environment like OS X"
       else
         File.open('/dev/tty') { |f| f.send(@method) }.should == true
       end