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/*
* Copyright 2004-2011 H2 Group.
* Copyright 2011 James Moger.
*
* 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 com.iciql.test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import com.iciql.Db;
import com.iciql.IciqlException;
import com.iciql.test.models.PrimitivesModel;
import com.iciql.test.models.Product;
import com.iciql.util.Utils;
/**
* Tests object and primitive alias referencing.
*/
public class AliasMapTest {
/**
* Tests that columns (p.unitsInStock) are not compared by value with the
* value (9), but by reference (using an identity hash map). See
* http://code.google.com/p/h2database/issues/detail?id=119
*
* @author d moebius at scoop dash gmbh dot de
*/
@Test
public void testObjectAliasMapping() throws Exception {
Db db = IciqlSuite.openNewDb();
db.insertAll(Product.getList());
// baseline count is the next id value
long bc = Utils.COUNTER.get();
// number of fields in primitives model class
// each from() call will increment Utils.COUNTER by this amount
int fc = Product.class.getFields().length;
Product p = new Product();
// This test confirms standard object referencing querying.
long count = db.from(p).where(p.productId).is(9).selectCount();
assertEquals(1, count);
// Confirms that productId counter value is baseline counter value
assertEquals(bc, p.productId.intValue());
try {
// This test compares "bc + fc" which is the counter value of
// unitsInStock assigned by Utils.newObject() after the 2nd pass
// through from().
//
// Object fields map by REFERENCE, not value.
db.from(p).where(Long.valueOf(bc + fc).intValue()).is(9).orderBy(p.productId).select();
assertTrue("Fail: object field is mapping by value.", false);
} catch (IciqlException e) {
assertEquals(IciqlException.CODE_UNMAPPED_FIELD, e.getIciqlCode());
assertEquals(bc + 5, p.productId.intValue());
}
try {
// This test compares Integer(bc) which is the counter value of
// unitsInStock assigned by Utils.newObject() after the 3rd pass
// through from().
//
// Object fields map by REFERENCE, not value.
db.from(p).where(Long.valueOf(bc).intValue()).is(9).orderBy(p.productId).select();
assertTrue("Fail: object field is mapping by value.", false);
} catch (IciqlException e) {
assertEquals(IciqlException.CODE_UNMAPPED_FIELD, e.getIciqlCode());
assertEquals(bc + (2 * fc), p.productId.intValue());
}
db.close();
}
/**
* Confirms that primitive aliases ARE mapped by value.
*/
@Test
public void testPrimitiveAliasMapping() throws Exception {
Db db = IciqlSuite.openNewDb();
PrimitivesModel model = new PrimitivesModel();
model.myLong = 100L;
db.insert(model);
model.myLong = 200L;
db.insert(model);
// baseline count is the next id value
long bc = Utils.COUNTER.get();
// number of fields in primitives model class
// each from() call will increment Utils.COUNTER by this amount
int fc = PrimitivesModel.class.getFields().length;
PrimitivesModel p = new PrimitivesModel();
// This test confirms standard primitive referencing querying.
long count = db.from(p).where(p.myLong).is(100L).selectCount();
assertEquals(1, count);
// Confirms that myLong counter value is bc
assertEquals(bc, p.myLong);
try {
// This test compares "bc + fc" which is the counter value
// of myLong assigned by Utils.newObject() after the 2nd pass
// through from().
//
// Primitive fields map by VALUE.
count = db.from(p).where(bc + fc).is(100L).selectCount();
assertEquals(1, count);
assertEquals(bc + fc, p.myLong);
} catch (IciqlException e) {
assertTrue(e.getMessage(), false);
}
try {
// This test compares "bc" which was the counter value of
// myLong assigned by Utils.newObject() after the 1st pass
// through from(). "bc" is unmapped now and will throw an
// exception.
//
// Primitive fields map by VALUE.
db.from(p).where(bc).is(100L).select();
} catch (IciqlException e) {
assertEquals(IciqlException.CODE_UNMAPPED_FIELD, e.getIciqlCode());
assertEquals(bc + (2 * fc), p.myLong);
}
db.close();
}
}
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