/*
* 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 java.util.Iterator;
import junit.framework.TestCase;
import org.castor.cpa.persistence.sql.query.expression.Column;
/**
* Test if AndCondition 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 TestAndCondition extends TestCase {
public void testExtendsHierarchy() {
assertTrue(CompoundCondition.class.isAssignableFrom(AndCondition.class));
}
public void testConstructorDefault() {
AndCondition comp = new AndCondition();
Iterator<Condition> iter = comp.iterator();
assertFalse(iter.hasNext());
}
public void testConstructorParam() {
Condition cond1 = new IsNullPredicate(new Column("A"));
Condition cond2 = new IsNullPredicate(new Column("B"));
AndCondition comp = new AndCondition(cond1, cond2);
Iterator<Condition> iter = comp.iterator();
assertTrue(iter.hasNext());
assertEquals(cond1, iter.next());
assertTrue(iter.hasNext());
assertEquals(cond2, iter.next());
assertFalse(iter.hasNext());
}
public void testConstructorCopy() {
Condition cond1 = new IsNullPredicate(new Column("A"));
Condition cond2 = new IsNullPredicate(new Column("B"));
AndCondition comp1 = new AndCondition(cond1, cond2);
AndCondition comp2 = new AndCondition(comp1);
Iterator<Condition> iter = comp2.iterator();
assertTrue(iter.hasNext());
assertEquals(cond1, iter.next());
assertTrue(iter.hasNext());
assertEquals(cond2, iter.next());
assertFalse(iter.hasNext());
}
public void testAppend() {
Condition cond1 = new IsNullPredicate(new Column("A"));
Condition cond2 = new IsNullPredicate(new Column("B"));
Condition cond3 = new IsNullPredicate(new Column("C"));
AndCondition cond23 = new AndCondition(cond2, cond3);
AndCondition comp = new AndCondition();
try {
comp.append(null);
fail("should throw NullPointerException");
} catch (NullPointerException ex) {
Iterator<Condition> iter = comp.iterator();
assertFalse(iter.hasNext());
} catch (Exception ex) {
fail("should throw NullPointerException");
}
comp.append(cond1);
comp.append(cond23);
Iterator<Condition> iter = comp.iterator();
assertTrue(iter.hasNext());
assertEquals(cond1, iter.next());
assertTrue(iter.hasNext());
assertEquals(cond2, iter.next());
assertTrue(iter.hasNext());
assertEquals(cond3, iter.next());
assertFalse(iter.hasNext());
}
public void testAnd() {
Condition cond1 = new IsNullPredicate(new Column("A"));
Condition cond2 = new IsNullPredicate(new Column("B"));
Condition cond3 = new IsNullPredicate(new Column("C"));
AndCondition comp = new AndCondition();
Condition cond = comp.and(cond1).and(cond2).and(cond3);
assertTrue(cond instanceof AndCondition);
assertEquals(comp, cond);
Iterator<Condition> iter = ((AndCondition) cond).iterator();
assertTrue(iter.hasNext());
assertEquals(cond1, iter.next());
assertTrue(iter.hasNext());
assertEquals(cond2, iter.next());
assertTrue(iter.hasNext());
assertEquals(cond3, iter.next());
assertFalse(iter.hasNext());
}
public void testNot() {
Condition cond1 = new IsNullPredicate(new Column("A"));
Condition cond2 = new IsNullPredicate(new Column("B"));
Condition cond = cond1.and(cond2).not();
assertTrue(cond instanceof OrCondition);
Iterator<Condition> iter = ((OrCondition) cond).iterator();
assertTrue(iter.hasNext());
Condition test1 = iter.next();
assertTrue(test1 instanceof IsNullPredicate);
assertEquals(cond1, test1);
assertFalse(((IsNullPredicate) test1).evaluateTo());
assertTrue(iter.hasNext());
Condition test2 = iter.next();
assertTrue(test2 instanceof IsNullPredicate);
assertEquals(cond2, test2);
assertFalse(((IsNullPredicate) test2).evaluateTo());
assertFalse(iter.hasNext());
}
public void testToString() {
Condition cond1 = new IsNullPredicate(new Column("mycol1"));
Condition cond2 = new IsNullPredicate(new Column("mycol2"));
Condition cond3 = new IsNullPredicate(new Column("mycol3"));
Condition cond = cond1.and(cond2.or(cond3));
assertEquals("mycol1 IS NULL AND (mycol2 IS NULL OR mycol3 IS NULL)", cond.toString());
}
}