object may define itself as value

by defining is_value and returning true
but then it must also define to_sof

lib/sof/util.rb

@@ -7,6 +7,9 @@ module Sof
       return true if o.class == Fixnum
       return true if o.class == Symbol
       return true if o.class == String
+      if o.respond_to? :is_value?
+        return true if o.is_value?
+      end
       return false
     end
 

test/test_basic.rb

@@ -0,0 +1,106 @@
+require_relative "helper"
+require "yaml"
+
+class ObjectWithAttributes
+  def initialize
+    @name = "some name"
+    @number = 1234
+  end
+  attr_accessor :extra
+end
+OBJECT_STRING = "ObjectWithAttributes(:name => 'some name', :number => 1234)"
+
+class BasicSof < MiniTest::Test
+  def check should
+    same = (should == @out)
+    puts "Shouldda\n#{@out}" unless same
+    assert_equal should , @out
+  end
+  def test_true
+    @out = Sof::Writer.write(true)
+    check "true" 
+  end
+  def test_num
+    @out = Sof::Writer.write(124)
+    check  "124" 
+  end
+  def test_simple_object
+    @out = Sof::Writer.write(ObjectWithAttributes.new)
+    check "#{OBJECT_STRING}" 
+  end
+  def test_object_extra_array
+    object = ObjectWithAttributes.new
+    object.extra = [:sym , 123]
+    @out = Sof::Writer.write(object)
+    check "#{OBJECT_STRING}\n :extra [:sym, 123]" 
+  end
+  def test_simple_array
+    @out = Sof::Writer.write([true, 1234])
+    check "[true, 1234]" 
+  end
+  def test_array_object
+    @out = Sof::Writer.write([true, 1234 , ObjectWithAttributes.new])
+    check "-true\n-1234\n-#{OBJECT_STRING}" 
+  end
+  def test_array_array
+    @out = Sof::Writer.write([true, 1 , [true , 12 ]])
+    check "-true\n-1\n-[true, 12]" 
+  end
+  def test_array_array_reverse
+    @out = Sof::Writer.write([ [true , 12 ], true, 1])
+    check "-[true, 12]\n-true\n-1" 
+  end
+  def test_array_array_array
+    @out = Sof::Writer.write([true, 1 , [true , 12 , [true , 123 ]]])
+    check "-true\n-1\n--true\n -12\n -[true, 123]" 
+  end
+  def test_array_array_object
+    @out = Sof::Writer.write([true, 1 , [true , 12 , ObjectWithAttributes.new]])
+    check "-true\n-1\n--true\n -12\n -#{OBJECT_STRING}" 
+  end
+  def test_simple_hash
+    @out = Sof::Writer.write({ one: 1 , tru: true })
+    check "{:one => 1, :tru => true}" 
+  end
+  def test_hash_object
+    @out = Sof::Writer.write({ one: 1 , two: ObjectWithAttributes.new })
+    check "-:one => 1\n-:two => #{OBJECT_STRING}" 
+  end
+  def test_array_hash
+    @out = Sof::Writer.write([true, 1 , { one: 1 , tru: true }])
+    check "-true\n-1\n-{:one => 1, :tru => true}" 
+  end
+  def test_hash_array
+    @out = Sof::Writer.write({ one: [1 , ObjectWithAttributes.new] , two: true })
+    check "-:one => -1\n -#{OBJECT_STRING}\n-:two => true" 
+  end
+  def test_array_recursive
+    ar = [true, 1 ]
+    ar << ar
+    @out = Sof::Writer.write(ar)
+    check "&1 [true, 1, *1]" 
+  end
+  def test_object_recursive
+    object = ObjectWithAttributes.new
+    object.extra = object
+    @out = Sof::Writer.write(object)
+    check "&1 ObjectWithAttributes(:name => 'some name', :number => 1234, :extra => *1)" 
+  end
+  def test_object_inline
+    object = ObjectWithAttributes.new
+    object.extra = Object.new
+    @out = Sof::Writer.write(object)
+    check "ObjectWithAttributes(:name => 'some name', :number => 1234, :extra => Object())" 
+  end
+  def test_class
+    @out = Sof::Writer.write(ObjectWithAttributes)
+    check "ObjectWithAttributes"
+  end
+  def test_class_ref
+    object = ObjectWithAttributes.new
+    object.extra = ObjectWithAttributes
+    ar = [object , ObjectWithAttributes]
+    @out = Sof::Writer.write(ar)
+    check "-ObjectWithAttributes(:name => 'some name', :number => 1234, :extra => *1)\n-&1 ObjectWithAttributes"
+  end
+end