diff --git a/test/test/spec/nsdecimal_spec.rb b/test/test/spec/nsdecimal_spec.rb
index 6913d15a..4cf16208 100644
--- a/test/test/spec/nsdecimal_spec.rb
+++ b/test/test/spec/nsdecimal_spec.rb
@@ -166,7 +166,7 @@ describe 'BigDecimal' do
     end
   end
 
-  describe 'concerning Objective-C interoperability' do
+  describe 'concerning (Objective-)C interoperability' do
     it 'can be passed to Objective-C APIs transperantly' do
       string = '0.123456789123456789'
       formatter = NSNumberFormatter.new
@@ -188,5 +188,16 @@ describe 'BigDecimal' do
       value.class.should == BigDecimal
       value.inspect.should == string
     end
+
+    it 'converts BigDecimal to NSDecimal' do
+      string = '0.123456789123456789'
+      number = NSDecimalNumber.decimalNumberWithDecimal(BigDecimal.new(string))
+      number.description.should == string
+    end
+
+    it 'converts BigDecimal to a pointer to NSDecimal' do
+      string = '0.123456789123456789'
+      NSDecimalString(BigDecimal.new(string), NSLocale.currentLocale).should == string
+    end
   end
 end