From a197d416798acbcc1ad51c8152f00c8602a360ec Mon Sep 17 00:00:00 2001
From: "Brian S. O'Neill" <bronee@gmail.com>
Date: Fri, 28 Mar 2008 16:55:16 +0000
Subject: Prevent duplicate field generation.

---
 .../carbonado/cursor/TestFilteredCursor.java       | 26 ++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'src')

diff --git a/src/test/java/com/amazon/carbonado/cursor/TestFilteredCursor.java b/src/test/java/com/amazon/carbonado/cursor/TestFilteredCursor.java
index 53c3171..e21b788 100644
--- a/src/test/java/com/amazon/carbonado/cursor/TestFilteredCursor.java
+++ b/src/test/java/com/amazon/carbonado/cursor/TestFilteredCursor.java
@@ -800,6 +800,32 @@ public class TestFilteredCursor extends TestCase {
         assertEquals(4, matches.get(2).getOrderID());
     }
 
+    public void testExpandedForm() throws Exception {
+        // Tests that duplicate property filters don't break code generation.
+
+        Repository repo = new ToyRepository();
+        Storage<Order> orders = repo.storageFor(Order.class);
+
+        Filter<Order> filter = Filter.filterFor
+            (Order.class, "orderTotal < ? & (orderNumber = ? | addressID = ?)");
+
+        FilterValues<Order> fv = filter.initialFilterValues();
+        fv = fv.withValues(100, "xyz", 123);
+
+        // Create the duplicates as a result of this transformation.
+        filter = filter.disjunctiveNormalForm();
+
+        Cursor<Order> cursor = EmptyCursor.the();
+
+        try {
+            cursor = FilteredCursor.applyFilter(filter, fv, cursor);
+        } catch (LinkageError e) {
+            throw e;
+        }
+
+        assertFalse(cursor.hasNext());
+    }
+
     @PrimaryKey("ID")
     public static interface FloatRecord extends Storable {
         int getID();
-- 
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