Struts example source code file (TextParseUtilTest.java)

This example Struts source code file (TextParseUtilTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Struts tags/keywords

hashmap, hello, list, map, my, my, object, object, something, string, util, valuestack, valuestack, variable, variable

The Struts TextParseUtilTest.java source code

/*
 * Copyright 2002-2006,2009 The Apache Software Foundation.
 * 
 * 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.opensymphony.xwork2.util;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.XWorkTestCase;

import java.util.*;

/**
 * Unit test of {@link TextParseUtil}.
 *
 * @author plightbo
 * @author tm_jee
 *
 * @version $Date: 2009-12-27 19:18:29 +0100 (Sun, 27 Dec 2009) $ $Id: TextParseUtilTest.java 894090 2009-12-27 18:18:29Z martinc $
 */
public class TextParseUtilTest extends XWorkTestCase {


	public void testTranslateVariablesWithEvaluator() throws Exception {
		ValueStack stack = ActionContext.getContext().getValueStack();
		stack.push(new Object() {
			public String getMyVariable() {
				return "My Variable ";
			}
		});

		TextParseUtil.ParsedValueEvaluator evaluator = new TextParseUtil.ParsedValueEvaluator() {
			public Object evaluate(Object parsedValue) {
				return parsedValue.toString()+"Something";
			}
		};

		String result = TextParseUtil.translateVariables("Hello ${myVariable}", stack, evaluator);

		assertEquals(result, "Hello My Variable Something");
	}

    public void testTranslateVariables() {
        ValueStack stack = ActionContext.getContext().getValueStack();

        Object s = TextParseUtil.translateVariables("foo: ${{1, 2, 3}}, bar: ${1}", stack);
        assertEquals("foo: [1, 2, 3], bar: 1", s);

        s = TextParseUtil.translateVariables("foo: %{{1, 2, 3}}, bar: %{1}", stack);
        assertEquals("foo: [1, 2, 3], bar: 1", s);

        s = TextParseUtil.translateVariables("foo: %{{1, 2, 3}}, bar: %{1}", stack);
        assertEquals("foo: [1, 2, 3], bar: 1", s);

        s = TextParseUtil.translateVariables("foo: ${#{1 : 2, 3 : 4}}, bar: ${1}", stack);
        assertEquals("foo: {1=2, 3=4}, bar: 1", s);

        s = TextParseUtil.translateVariables("foo: %{#{1 : 2, 3 : 4}}, bar: %{1}", stack);
        assertEquals("foo: {1=2, 3=4}, bar: 1", s);

        s = TextParseUtil.translateVariables("foo: 1}", stack);
        assertEquals("foo: 1}", s);

        s = TextParseUtil.translateVariables("foo: {1}", stack);
        assertEquals("foo: {1}", s);

        s = TextParseUtil.translateVariables("foo: ${1", stack);
        assertEquals("foo: ${1", s);

        s = TextParseUtil.translateVariables("foo: %{1", stack);
        assertEquals("foo: %{1", s);

        s =  TextParseUtil.translateVariables('$', "${{1, 2, 3}}", stack, Object.class);
        assertNotNull(s);
        assertTrue("List not returned when parsing a 'pure' list", s instanceof List);
        assertEquals(((List)s).size(), 3);

        s = TextParseUtil.translateVariables('$', "${#{'key1':'value1','key2':'value2','key3':'value3'}}", stack, Object.class);
        assertNotNull(s);
        assertTrue("Map not returned when parsing a 'pure' map", s instanceof Map);
        assertEquals(((Map)s).size(), 3);

        s =  TextParseUtil.translateVariables('$', "${1} two ${3}", stack, Object.class);
        assertEquals("1 two 3", s);

        s = TextParseUtil.translateVariables('$', "count must be between ${123} and ${456}, current value is ${98765}.", stack, Object.class);
        assertEquals("count must be between 123 and 456, current value is 98765.", s);
    }

    public void testCommaDelimitedStringToSet() {
        assertEquals(0, TextParseUtil.commaDelimitedStringToSet("").size());
        assertEquals(new HashSet<String>(Arrays.asList("foo", "bar", "tee")),
                TextParseUtil.commaDelimitedStringToSet(" foo, bar,tee"));
    }

    public void testTranslateVariablesOpenChar() {
        // just a quick test to see if the open char works
        // most test are done the methods above
        ValueStack stack = ActionContext.getContext().getValueStack();

        Object s = TextParseUtil.translateVariables('$', "foo: ${{1, 2, 3}}, bar: ${1}", stack);
        assertEquals("foo: [1, 2, 3], bar: 1", s);

        Object s2 = TextParseUtil.translateVariables('#', "foo: #{{1, 2, 3}}, bar: #{1}", stack);
        assertEquals("foo: [1, 2, 3], bar: 1", s2);
    }

    public void testTranslateNoVariables() {
        ValueStack stack = ActionContext.getContext().getValueStack();

        Object s = TextParseUtil.translateVariables('$', "foo: ${}", stack);
        assertEquals("foo: ", s);
    }

    public void testTranslateVariablesNoRecursive() {
        ValueStack stack = ActionContext.getContext().getValueStack();
        stack.push(new HashMap<String, Object>() {{ put("foo", "${1+1}"); }});

        Object s = TextParseUtil.translateVariables('$', "foo: ${foo}", stack, String.class, null, 1);
        assertEquals("foo: ${1+1}", s);
    }

    public void testTranslateVariablesRecursive() {
        ValueStack stack = ActionContext.getContext().getValueStack();
        stack.push(new HashMap<String, Object>() {{ put("foo", "${1+1}"); }});

        Object s = TextParseUtil.translateVariables('$', "foo: ${foo}", stack, String.class, null, 2);
        assertEquals("foo: 2", s);
    }

}