init

test/org/apache/el/parser/TestAstMapData.java

@@ -0,0 +1,90 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.el.parser;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.el.ELContext;
+import javax.el.ELManager;
+import javax.el.ELProcessor;
+import javax.el.ExpressionFactory;
+import javax.el.ValueExpression;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestAstMapData {
+
+    private static final Map<String,String> simpleMap = new HashMap<>();
+    private static final Map<Object,Object> nestedMap = new HashMap<>();
+
+    static {
+        simpleMap.put("a", "1");
+        simpleMap.put("b", "2");
+        simpleMap.put("c", "3");
+
+        nestedMap.put("simple", simpleMap);
+        // {} will get parsed as an empty Set as there is nothing to hint to the
+        // parser that Map is expected here.
+        nestedMap.put("empty", Collections.EMPTY_SET);
+        nestedMap.put("d", "4");
+    }
+
+
+    @Test
+    public void testSimple01() {
+        ELProcessor processor = new ELProcessor();
+        Object result = processor.getValue(
+                "{'a':'1','b':'2','c':'3'}", Map.class);
+        Assert.assertEquals(simpleMap, result);
+    }
+
+
+    @Test
+    public void testSimple02() {
+        ELProcessor processor = new ELProcessor();
+        Object result = processor.getValue("{}", Map.class);
+        Assert.assertEquals(Collections.EMPTY_MAP, result);
+    }
+
+
+    @Test
+    public void testNested01() {
+        ELProcessor processor = new ELProcessor();
+        Object result = processor.getValue(
+                "{'simple':{'a':'1','b':'2','c':'3'}," +
+                "'empty':{}," +
+                "'d':'4'}", Map.class);
+        Assert.assertEquals(nestedMap, result);
+    }
+
+
+    @Test
+    public void testGetType() {
+        ELProcessor processor = new ELProcessor();
+        ELContext context = processor.getELManager().getELContext();
+        ExpressionFactory factory = ELManager.getExpressionFactory();
+
+        ValueExpression ve = factory.createValueExpression(
+                context, "${{'a':'1','b':'2','c':'3'}}", Map.class);
+
+        Assert.assertEquals(Map.class, ve.getType(context));
+        Assert.assertEquals(simpleMap, ve.getValue(context));
+    }
+}