/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.translator.jdbc.ingres;
import static org.junit.Assert.*;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.sql.Timestamp;
import java.util.Arrays;
import org.junit.Test;
import org.teiid.language.Expression;
import org.teiid.language.Function;
import org.teiid.language.LanguageFactory;
import org.teiid.query.unittest.TimestampUtil;
import org.teiid.translator.TypeFacility;
import org.teiid.translator.jdbc.SQLConversionVisitor;
/**
*/
public class TestIngresConvertModifier {
private static final LanguageFactory LANG_FACTORY = new LanguageFactory();
public String helpGetString(Expression expr) throws Exception {
IngresExecutionFactory trans = new IngresExecutionFactory();
trans.start();
SQLConversionVisitor sqlVisitor = trans.getSQLConversionVisitor();
sqlVisitor.append(expr);
return sqlVisitor.toString();
}
public void helpTest(Expression srcExpression, String tgtType, String expectedExpression) throws Exception {
Function func = LANG_FACTORY.createFunction("convert", //$NON-NLS-1$
Arrays.asList(
srcExpression,
LANG_FACTORY.createLiteral(tgtType, String.class)),
TypeFacility.getDataTypeClass(tgtType));
assertEquals("Error converting from " + srcExpression.getType() + " to " + tgtType, //$NON-NLS-1$ //$NON-NLS-2$
expectedExpression, helpGetString(func));
}
// Source = STRING
@Test public void testStringToChar() throws Exception {
helpTest(LANG_FACTORY.createLiteral("5", String.class), "char", "cast('5' AS char(1))"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
@Test public void testBooleanToBigDecimal() throws Exception {
helpTest(LANG_FACTORY.createLiteral(Boolean.TRUE, Boolean.class), "bigdecimal", "cast(1 AS decimal(38,19))"); //$NON-NLS-1$ //$NON-NLS-2$
}
// Source = BYTE
@Test public void testByteToString() throws Exception {
helpTest(LANG_FACTORY.createLiteral(new Byte((byte)1), Byte.class), "string", "cast(1 AS varchar(4000))"); //$NON-NLS-1$ //$NON-NLS-2$
}
@Test public void testByteToBoolean() throws Exception {
helpTest(LANG_FACTORY.createLiteral(new Byte((byte)1), Byte.class), "boolean", "CASE WHEN 1 = 0 THEN 0 WHEN 1 IS NOT NULL THEN 1 END"); //$NON-NLS-1$ //$NON-NLS-2$
}
@Test public void testBigIntegerToDouble() throws Exception {
helpTest(LANG_FACTORY.createLiteral(new BigInteger("1"), BigInteger.class), "double", "cast(1 AS float)"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
// Source = FLOAT
@Test public void testFloatToLong() throws Exception {
helpTest(LANG_FACTORY.createLiteral(new Float(1.2f), Float.class), "long", "cast(1.2 AS bigint)"); //$NON-NLS-1$ //$NON-NLS-2$
}
// Source = DOUBLE
@Test public void testDoubleToShort() throws Exception {
helpTest(LANG_FACTORY.createLiteral(new Double(1.2), Double.class), "short", "cast(1.2 AS smallint)"); //$NON-NLS-1$ //$NON-NLS-2$
}
// Source = BIGDECIMAL
@Test public void testBigDecimalToByte() throws Exception {
helpTest(LANG_FACTORY.createLiteral(new BigDecimal("1.0"), BigDecimal.class), "byte", "cast(1.0 AS tinyint)"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
// Source = DATE
@Test public void testDateToTimestamp() throws Exception {
helpTest(LANG_FACTORY.createLiteral(TimestampUtil.createDate(103, 10, 1), java.sql.Date.class), "timestamp", "cast(DATE '2003-11-01' AS timestamp with time zone)"); //$NON-NLS-1$ //$NON-NLS-2$
}
// Source = TIME
@Test public void testTimeToString() throws Exception {
helpTest(LANG_FACTORY.createLiteral(TimestampUtil.createTime(23, 59, 59), java.sql.Time.class), "string", "cast(TIME '23:59:59' AS varchar(4000))"); //$NON-NLS-1$ //$NON-NLS-2$
}
// Source = TIMESTAMP
@Test public void testTimestampToString() throws Exception {
Timestamp ts = TimestampUtil.createTimestamp(103, 10, 1, 12, 5, 2, 0);
helpTest(LANG_FACTORY.createLiteral(ts, Timestamp.class), "string", "cast(TIMESTAMP '2003-11-01 12:05:02.0' AS varchar(4000))"); //$NON-NLS-1$ //$NON-NLS-2$
}
}