/*
* 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 CompoundCondition 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 TestCompoundCondition extends TestCase {
public void testExtendsHierarchy() {
assertTrue(Condition.class.isAssignableFrom(CompoundCondition.class));
}
public void testConstructorDefault() {
CompoundCondition comp = new CompoundConditionMock();
Iterator<Condition> iter = comp.iterator();
assertFalse(iter.hasNext());
}
public void testConstructorCopy() {
Condition cond1 = new IsNullPredicate(new Column("A"));
Condition cond2 = new IsNullPredicate(new Column("B"));
CompoundCondition comp1 = new CompoundConditionMock();
comp1.append(cond1);
comp1.append(cond2);
CompoundCondition comp2 = new CompoundConditionMock(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"));
CompoundCondition comp = new CompoundConditionMock();
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(cond2);
comp.append(cond3);
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 testInsert() {
Condition cond1 = new IsNullPredicate(new Column("A"));
Condition cond2 = new IsNullPredicate(new Column("B"));
Condition cond3 = new IsNullPredicate(new Column("C"));
CompoundCondition comp = new CompoundConditionMock();
try {
comp.insert(null);
fail("should throw NullPointerException");
} catch (NullPointerException ex) {
Iterator<Condition> iter = comp.iterator();
assertFalse(iter.hasNext());
} catch (Exception ex) {
fail("should throw NullPointerException");
}
comp.insert(cond1);
comp.insert(cond2);
comp.insert(cond3);
Iterator<Condition> iter = comp.iterator();
assertTrue(iter.hasNext());
assertEquals(cond3, iter.next());
assertTrue(iter.hasNext());
assertEquals(cond2, iter.next());
assertTrue(iter.hasNext());
assertEquals(cond1, iter.next());
assertFalse(iter.hasNext());
}
}