Board#render: return output instead of printing

Don't print the grid directly. We'll do this in a separate display
method or game loop area.

2 files changed, 2 insertions, 6 deletions

diff --git a/board.rb b/board.rb
index 9481d45..93b726a 100644
--- a/board.rb
+++ b/board.rb
@@ -8,6 +8,6 @@ class Board
   end
   
   def render
-    puts "...\n" * 3
+    "...\n" * 3
   end
 end
diff --git a/spec/board_spec.rb b/spec/board_spec.rb
index 1370c10..86b4276 100644
--- a/spec/board_spec.rb
+++ b/spec/board_spec.rb
@@ -7,11 +7,7 @@ describe Board do
   
   describe '#render' do
     it 'prints a grid' do
-      out, err = capture_io do
-        @board.render
-      end
-      
-      out.must_equal <<EOF
+      @board.render.must_equal <<EOF
 ...
 ...
 ...