/*
* Copyright 2009 Ralf Joachim, Ahmad Hassan
*
* 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 org.castor.cpa.persistence.sql.query.condition;
import junit.framework.TestCase;
import org.castor.cpa.persistence.sql.query.expression.Column;
import org.castor.cpa.persistence.sql.query.expression.Expression;
/**
* Test if Compare works as expected.
*
* @author <a href="mailto:ahmad DOT hassan AT gmail DOT com">Ahmad Hassan</a>
* @author <a href="mailto:ralf DOT joachim AT syscon DOT eu">Ralf Joachim</a>
* @version $Revision$ $Date: 2009-07-13 17:22:43 (Mon, 13 Jul 2009) $
*/
public final class TestCompare extends TestCase {
public void testExtendsHierarchy() {
assertTrue(Condition.class.isAssignableFrom(Compare.class));
}
public void testConstructorName() {
Expression left = new Column("left");
Expression right = new Column("right");
Compare compare = null;
try {
compare = new Compare(null, CompareOperator.EQ, right);
fail("should throw NullPointerException");
} catch (NullPointerException ex) {
assertNull(compare);
} catch (Exception ex) {
fail("should throw NullPointerException");
}
try {
compare = new Compare(left, null, right);
fail("should throw NullPointerException");
} catch (NullPointerException ex) {
assertNull(compare);
} catch (Exception ex) {
fail("should throw NullPointerException");
}
try {
compare = new Compare(left, CompareOperator.EQ, null);
fail("should throw NullPointerException");
} catch (NullPointerException ex) {
assertNull(compare);
} catch (Exception ex) {
fail("should throw NullPointerException");
}
try {
compare = new Compare(left, CompareOperator.EQ, right);
assertEquals(left, compare.leftExpression());
assertEquals(right, compare.rightExpression());
assertEquals(CompareOperator.EQ, compare.operator());
assertEquals("left=right", compare.toString());
} catch (Exception ex) {
fail("should not throw exception");
}
}
public void testCompareNotFactory() {
Expression left = new Column("left");
Expression right = new Column("right");
Compare compare = new Compare(left, CompareOperator.EQ, right);
assertEquals(left, compare.leftExpression());
assertEquals(right, compare.rightExpression());
assertEquals(CompareOperator.EQ, compare.operator());
assertEquals("left=right", compare.toString());
Condition condition = compare.not();
assertTrue(compare == condition);
compare = (Compare) condition;
assertEquals(left, compare.leftExpression());
assertEquals(right, compare.rightExpression());
assertEquals(CompareOperator.NE, compare.operator());
assertEquals("left<>right", compare.toString());
}
}