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Commons JXPath example source code file (CoreOperationTest.java)

This example Commons JXPath source code file (CoreOperationTest.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 - Commons JXPath tags/keywords

coreoperationtest, coreoperationtest, double, double, integer, integer, jxpathcontext, jxpathcontext, jxpathtestcase, variables

The Commons JXPath CoreOperationTest.java source code

/*
 * 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.commons.jxpath.ri.compiler;

import org.apache.commons.jxpath.JXPathContext;
import org.apache.commons.jxpath.JXPathTestCase;
import org.apache.commons.jxpath.Variables;

/**
 * Test basic functionality of JXPath - infoset types,
 * operations.
 *
 * @author Dmitri Plotnikov
 * @version $Revision: 652845 $ $Date: 2008-05-02 12:46:46 -0500 (Fri, 02 May 2008) $
 */
public class CoreOperationTest extends JXPathTestCase {
    private JXPathContext context;

    public void setUp() {
        if (context == null) {
            context = JXPathContext.newContext(null);
            Variables vars = context.getVariables();
            vars.declareVariable("integer", new Integer(1));
            vars.declareVariable("array", new double[] { 0.25, 0.5, 0.75 });
            vars.declareVariable("nan", new Double(Double.NaN));
        }
    }

    public void testInfoSetTypes() {

        // Numbers
        assertXPathValue(context, "1", new Double(1.0));
        assertXPathPointer(context, "1", "1");
        assertXPathValueIterator(context, "1", list(new Double(1.0)));

        assertXPathPointerIterator(context, "1", list("1"));

        assertXPathValue(context, "-1", new Double(-1.0));
        assertXPathValue(context, "2 + 2", new Double(4.0));
        assertXPathValue(context, "3 - 2", new Double(1.0));
        assertXPathValue(context, "1 + 2 + 3 - 4 + 5", new Double(7.0));
        assertXPathValue(context, "3 * 2", new Double(3.0 * 2.0));
        assertXPathValue(context, "3 div 2", new Double(3.0 / 2.0));
        assertXPathValue(context, "5 mod 2", new Double(1.0));

        // This test produces a different result with Xalan?
        assertXPathValue(context, "5.9 mod 2.1", new Double(1.0));

        assertXPathValue(context, "5 mod -2", new Double(1.0));
        assertXPathValue(context, "-5 mod 2", new Double(-1.0));
        assertXPathValue(context, "-5 mod -2", new Double(-1.0));
        assertXPathValue(context, "1 < 2", Boolean.TRUE);
        assertXPathValue(context, "1 > 2", Boolean.FALSE);
        assertXPathValue(context, "1 <= 1", Boolean.TRUE);
        assertXPathValue(context, "1 >= 2", Boolean.FALSE);
        assertXPathValue(context, "3 > 2 > 1", Boolean.FALSE);
        assertXPathValue(context, "3 > 2 and 2 > 1", Boolean.TRUE);
        assertXPathValue(context, "3 > 2 and 2 < 1", Boolean.FALSE);
        assertXPathValue(context, "3 < 2 or 2 > 1", Boolean.TRUE);
        assertXPathValue(context, "3 < 2 or 2 < 1", Boolean.FALSE);
        assertXPathValue(context, "1 = 1", Boolean.TRUE);
        assertXPathValue(context, "1 = '1'", Boolean.TRUE);
        assertXPathValue(context, "1 > 2 = 2 > 3", Boolean.TRUE);
        assertXPathValue(context, "1 > 2 = 0", Boolean.TRUE);
        assertXPathValue(context, "1 = 2", Boolean.FALSE);

        assertXPathValue(context, "$integer", new Double(1), Double.class);

        assertXPathValue(context, "2 + 3", "5.0", String.class);

        assertXPathValue(context, "2 + 3", Boolean.TRUE, boolean.class);

        assertXPathValue(context, "'true'", Boolean.TRUE, Boolean.class);
    }

    public void testNodeSetOperations() {
        assertXPathValue(context, "$array > 0", Boolean.TRUE, Boolean.class);
        assertXPathValue(context, "$array >= 0", Boolean.TRUE, Boolean.class);
        assertXPathValue(context, "$array = 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$array = 0.25", Boolean.TRUE, Boolean.class);
        assertXPathValue(context, "$array = 0.5", Boolean.TRUE, Boolean.class);
        assertXPathValue(context, "$array = 0.50000", Boolean.TRUE, Boolean.class);
        assertXPathValue(context, "$array = 0.75", Boolean.TRUE, Boolean.class);
        assertXPathValue(context, "$array < 1", Boolean.TRUE, Boolean.class);
        assertXPathValue(context, "$array <= 1", Boolean.TRUE, Boolean.class);
        assertXPathValue(context, "$array = 1", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$array > 1", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$array < 0", Boolean.FALSE, Boolean.class);
    }

    public void testEmptyNodeSetOperations() {
        assertXPathValue(context, "/idonotexist = 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "/idonotexist != 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "/idonotexist < 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "/idonotexist > 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "/idonotexist >= 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "/idonotexist <= 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$array[position() < 1] = 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$array[position() < 1] != 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$array[position() < 1] < 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$array[position() < 1] > 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$array[position() < 1] >= 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$array[position() < 1] <= 0", Boolean.FALSE, Boolean.class);
    }

    public void testNan() {
        assertXPathValue(context, "$nan > $nan", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan < $nan", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan >= $nan", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan <= $nan", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan >= $nan and $nan <= $nan", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan = $nan", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan != $nan", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan > 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan < 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan >= 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan <= 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan >= 0 and $nan <= 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan = 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan != 0", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan > 1", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan < 1", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan >= 1", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan <= 1", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan >= 1 and $nan <= 1", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan = 1", Boolean.FALSE, Boolean.class);
        assertXPathValue(context, "$nan != 1", Boolean.FALSE, Boolean.class);
    }
}

Other Commons JXPath examples (source code examples)

Here is a short list of links related to this Commons JXPath CoreOperationTest.java source code file:

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