io.c: write a newline together

* io.c (rb_io_puts): write a newline together at once for each
  argument.  based on the patch by rohitpaulk (Rohit Kuruvilla) at
  [ruby-core:83508].  [Feature #14042]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60417 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 6 deletions

diff --git a/spec/ruby/core/io/puts_spec.rb b/spec/ruby/core/io/puts_spec.rb
index 8f2f4f2c81..51240eed73 100644
--- a/spec/ruby/core/io/puts_spec.rb
+++ b/spec/ruby/core/io/puts_spec.rb
@@ -43,18 +43,16 @@ describe "IO#puts" do
     object.should_receive(:method_missing).with(:to_ary)
     object.should_receive(:to_s).and_return("#<Object:0x...>")
 
-    @io.should_receive(:write).with("#<Object:0x...>")
-    @io.should_receive(:write).with("\n")
     @io.puts(object).should == nil
+    ScratchPad.recorded.should == "#<Object:0x...>\n"
   end
 
   it "calls :to_ary before writing non-string objects" do
     object = mock('hola')
     object.should_receive(:to_ary).and_return(["hola"])
 
-    @io.should_receive(:write).with("hola")
-    @io.should_receive(:write).with("\n")
     @io.puts(object).should == nil
+    ScratchPad.recorded.should == "hola\n"
   end
 
   it "calls :to_s before writing non-string objects that don't respond to :to_ary" do
@@ -69,9 +67,8 @@ describe "IO#puts" do
     object = mock('hola')
     object.should_receive(:to_s).and_return(false)
 
-    @io.should_receive(:write).with(object.inspect.split(" ")[0] + ">")
-    @io.should_receive(:write).with("\n")
     @io.puts(object).should == nil
+    ScratchPad.recorded.should == object.inspect.split(" ")[0] + ">\n"
   end
 
   it "writes each arg if given several" do