Correctly handle empty arrays and hashes

lib/ap/awesome_print.rb

@@ -43,6 +43,8 @@ class AwesomePrint
   # Format an array.
   #------------------------------------------------------------------------------
   def awesome_array(a)
+    return "[]" if a == []
+
     if @options[:multiline]
       width = (a.size - 1).to_s.size 
       data = a.inject([]) do |arr, item|
@@ -61,6 +63,8 @@ class AwesomePrint
   # Format a hash. If @options[:indent] if negative left align hash keys.
   #------------------------------------------------------------------------------
   def awesome_hash(h)
+    return "{}" if h == {}
+
     data = h.keys.inject([]) do |arr, key|
       plain_single_line do
         arr << [ awesome(key), h[key] ]

spec/awesome_print_spec.rb

@@ -12,6 +12,11 @@ describe "AwesomePrint" do
       @arr = [ 1, :two, "three", [ nil, [ true, false] ] ]
     end
 
+    it "empty array" do
+      ap = AwesomePrint.new
+      ap.send(:awesome, []).should == "[]"
+    end
+
     it "plain multiline" do
       ap = AwesomePrint.new(:plain => true)
       ap.send(:awesome, @arr).should == <<-EOS.strip
@@ -126,12 +131,8 @@ EOS
     end
     
     it "empty hash" do
-      ap = AwesomePrint.new(:plain => true)
-      ap.send(:awesome, {}).should == <<-EOS.strip
-{
-
-}
-EOS
+      ap = AwesomePrint.new
+      ap.send(:awesome, {}).should == "{}"
     end
     
     it "plain multiline" do