adds simple hash and test

lib/sof/all.rb

@@ -3,6 +3,7 @@ require_relative "members"
 require_relative "volotile"
 require_relative "writer"
 require_relative "array"
+require_relative "hash"
 require_relative "occurence"
 
 Symbol.class_eval do

lib/sof/hash.rb

@@ -0,0 +1,13 @@
+Hash.class_eval do
+  def to_sof(io , members , level)
+    each_with_index do |pair , i|
+      key , object = pair
+      io.write(" " * level) unless i == 0
+      io.write "-"
+      members.output( io , key)
+      io.write( " " )
+      members.output( io , object)
+      io.write("\n")
+    end
+  end
+end

test/sof.rb

@@ -41,5 +41,9 @@ class BasicSof < MiniTest::Test
     out = Sof::Writer.write([true, 1 , [true , 12 , ObjectWithAttributes.new]])
     assert_equal "-true\n-1\n--true\n -12\n -#{OBJECT_STRING}\n\n\n" , out
   end
-
+  def test_simple_hash
+    out = Sof::Writer.write({ one: 1 , tru: true })
+    puts out
+    assert_equal "-:one 1\n-:tru true\n" , out
+  end
 end