spec/transformable_spec.rb in transformable-0.0.4 vs spec/transformable_spec.rb in transformable-0.0.5

@@ -4,12 +4,47 @@
   include Transformable
   attr_accessor :title
   clean(:title) { |v| v.gsub(/\s/, "")}
 end
 
+class Bar
+  include Transformable
+  attr_accessor :title
+  clean(:title, :skip_nil => false) {|v| v.nil? ? "bar" : v }
+end
+
+class NoNils
+  include Transformable
+  attr_accessor :title
+  clean(:title) {|v| "bar" }
+end
+
 describe Transformable do
   it "used the provided block to filter attributes" do
     f = Foo.new
     f.title = "bar bar"
     f.title.should == "barbar"
+  end
+
+  context "when :skip_nil is not set (aka :skip_nil => true)" do
+    it "doesn't let nil values through to the block" do
+      n = NoNils.new
+      n.title = nil
+      n.title.should be_nil
+    end
+  end
+
+
+  context "when :skip_nil is set to false" do
+    it "lets nil values through" do
+      b = Bar.new
+      b.title = nil
+      b.title.should == "bar"
+    end
+
+    it "lets non-nil values through" do
+      b = Bar.new
+      b.title = "foobar"
+      b.title.should == "foobar"
+    end
   end
 end