001: /*
002: * $Id: TestDifferenceFunction.java,v 1.3 2005/03/03 02:22:00 ahimanikya Exp $
003: * =======================================================================
004: * Copyright (c) 2003 Axion Development Team. All rights reserved.
005: *
006: * Redistribution and use in source and binary forms, with or without
007: * modification, are permitted provided that the following conditions
008: * are met:
009: *
010: * 1. Redistributions of source code must retain the above
011: * copyright notice, this list of conditions and the following
012: * disclaimer.
013: *
014: * 2. Redistributions in binary form must reproduce the above copyright
015: * notice, this list of conditions and the following disclaimer in
016: * the documentation and/or other materials provided with the
017: * distribution.
018: *
019: * 3. The names "Tigris", "Axion", nor the names of its contributors may
020: * not be used to endorse or promote products derived from this
021: * software without specific prior written permission.
022: *
023: * 4. Products derived from this software may not be called "Axion", nor
024: * may "Tigris" or "Axion" appear in their names without specific prior
025: * written permission.
026: *
027: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
028: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
029: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
030: * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
031: * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
032: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
033: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
034: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
035: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
036: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
037: * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
038: * =======================================================================
039: */
040:
041: package org.axiondb.functions;
042:
043: import java.util.HashMap;
044: import java.util.Map;
045:
046: import junit.framework.Test;
047: import junit.framework.TestSuite;
048:
049: import org.axiondb.ColumnIdentifier;
050: import org.axiondb.RowDecorator;
051: import org.axiondb.engine.rows.SimpleRow;
052:
053: /**
054: * @version $Revision: 1.3 $ $Date: 2005/03/03 02:22:00 $
055: * @author Rodney Waldhoff
056: */
057: public class TestDifferenceFunction extends BaseFunctionTest {
058:
059: //------------------------------------------------------------ Conventional
060:
061: public TestDifferenceFunction(String testName) {
062: super (testName);
063: }
064:
065: public static Test suite() {
066: TestSuite suite = new TestSuite(TestDifferenceFunction.class);
067: return suite;
068: }
069:
070: //--------------------------------------------------------------- Lifecycle
071:
072: //--------------------------------------------------------------- Framework
073:
074: protected ConcreteFunction makeFunction() {
075: return new DifferenceFunction();
076: }
077:
078: //------------------------------------------------------------------- Tests
079:
080: public void testMakeNewInstance() {
081: DifferenceFunction function = new DifferenceFunction();
082: assertTrue(function.makeNewInstance() instanceof DifferenceFunction);
083: assertTrue(function.makeNewInstance() != function
084: .makeNewInstance());
085: }
086:
087: public void testDifferenceFunctionEvaluate() throws Exception {
088: DifferenceFunction function = new DifferenceFunction();
089: ColumnIdentifier sel1 = new ColumnIdentifier("arg1");
090: function.addArgument(sel1);
091: ColumnIdentifier sel2 = new ColumnIdentifier("arg2");
092: function.addArgument(sel2);
093: function.addArgument(sel1);
094: Map map = new HashMap();
095: map.put(sel1, new Integer(0));
096: map.put(sel2, new Integer(1));
097: RowDecorator dec = new RowDecorator(map);
098: dec.setRow(new SimpleRow(
099: new Object[] { "smothers", "brothers" }));
100: assertEquals(new Integer(2), function.evaluate(dec));
101:
102: dec.setRow(new SimpleRow(new Object[] { null, "brothers" }));
103: assertNull(function.evaluate(dec));
104:
105: dec.setRow(new SimpleRow(new Object[] { "brothers", null }));
106: assertNull(function.evaluate(dec));
107:
108: }
109:
110: public void testInvalid() throws Exception {
111: DifferenceFunction function = new DifferenceFunction();
112: assertTrue(!function.isValid());
113: }
114:
115: public void testValid() throws Exception {
116: DifferenceFunction function = new DifferenceFunction();
117: function.addArgument(new ColumnIdentifier("arg1"));
118: function.addArgument(new ColumnIdentifier("arg2"));
119: assertTrue(function.isValid());
120: }
121: }
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