Added test and note about value comparison.

Author: ciscoheat

README.md

@@ -198,6 +198,10 @@ try new Person({
 }
 ```
 
+## Equality comparison
+
+Use a library like [deep_equal](https://lib.haxe.org/p/deep_equal/) for value comparison between DataClass objects.
+
 ## JSON/Date conversion
 
 DataClass can ease the JSON conversion process, especially when using `Date`. When defining `-D dataclass-date-auto-conversion`, strings and numbers will be automatically converted to `Date`, so you can basically create DataClass objects directly from JSON:

tests-node.hxml

@@ -3,6 +3,7 @@
 -lib hxnodejs 
 -lib travix 
 -lib dataclass
+-lib deep_equal
 -cp ./tests/
 -cp ./src/
 -main Tests2

tests.hxml

@@ -1,5 +1,6 @@
 -lib buddy
 -lib deepstate
+-lib deep_equal
 -cp ./tests/
 -cp ./src/
 -main Tests2

tests/Tests2.hx

@@ -138,6 +138,11 @@ class WishItemData implements DataClass {
     public final item_price:Float;
 }
 
+class DataclassContainer implements DataClass {
+	public final item : WishItemData;
+	public final id : Int;
+}
+
 /*
 // This should fail due to a validator on a static field.
 class WishItemData2 implements DataClass {
@@ -239,6 +244,20 @@ class Tests2 extends BuddySuite implements Buddy<[
 				new WishItemData({item_price: 12.34}).should.not.be(null);
 			});
 
+			it("should be compatible with deep_equal", {
+				final test1 = new DataclassContainer({
+					item: new WishItemData({item_price: 10}),
+					id: 123
+				});
+
+				final test2 = new DataclassContainer({
+					item: new WishItemData({item_price: 10}),
+					id: 123
+				});
+
+				deepequal.DeepEqual.compare(test1, test2).isSuccess().should.be(true);
+			});
+
 			///////////////////////////////////////////////////////////////////
 
 			describe("With non-null fields", {