Initialize NSArray key operators defined by Wonder before test execut…

…ion (closes #33)

src/main/java/com/wounit/rules/AbstractEditingContextRule.java

@@ -37,6 +37,7 @@
 import er.extensions.ERXExtensions;
 import er.extensions.eof.ERXEC;
 import er.extensions.eof.ERXEntityClassDescription;
+import er.extensions.foundation.ERXArrayUtilities;
 import er.extensions.foundation.ERXProperties;
 
 /**
@@ -100,8 +101,8 @@ public void insert(EOEnterpriseObject object) {
 
 	// Simulate what ERExtensions does
 	EOModelGroup.setClassDelegate(SINGLETONS.exrExtensions);
-
 	ERXEntityClassDescription.registerDescription();
+	ERXArrayUtilities.initialize();
 
 	for (String modelName : modelNames) {
 	    loadModel(modelName);

src/test/java/com/wounit/rules/TestNSArrayOperators.java

@@ -0,0 +1,50 @@
+/**
+ * Copyright (C) 2009 hprange <hprange@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.wounit.rules;
+
+import static org.junit.Assert.assertThat;
+import static org.junit.matchers.JUnitMatchers.hasItems;
+
+import java.math.BigDecimal;
+
+import org.junit.Rule;
+import org.junit.Test;
+
+import com.webobjects.foundation.NSArray;
+import com.wounit.annotations.Dummy;
+import com.wounit.model.ExtendedPrototypeEntity;
+
+/**
+ * @author <a href="mailto:hprange@gmail.com.br">Henrique Prange</a>
+ */
+public class TestNSArrayOperators {
+    @Rule
+    public MockEditingContext editingContext = new MockEditingContext("Test");
+
+    @Dummy(size = 2)
+    private NSArray<ExtendedPrototypeEntity> entities;
+
+    @Test
+    public void supportNSArrayOperators() throws Exception {
+	entities.get(0).setExtendedAttribute(BigDecimal.TEN);
+	entities.get(1).setExtendedAttribute(BigDecimal.ONE);
+
+	@SuppressWarnings("unchecked")
+	NSArray<BigDecimal> result = (NSArray<BigDecimal>) entities.valueForKeyPath("@flatten." + ExtendedPrototypeEntity.EXTENDED_ATTRIBUTE_KEY);
+
+	assertThat(result, hasItems(BigDecimal.TEN, BigDecimal.ONE));
+    }
+}