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*
* This library is free software; you can redistribute it and/or
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*
* This library is distributed in the hope that it will be useful,
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* 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
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package org.teiid.query.sql.visitor;
import java.util.ArrayList;
import java.util.List;
import junit.framework.TestCase;
import org.teiid.api.exception.query.QueryParserException;
import org.teiid.query.parser.QueryParser;
import org.teiid.query.sql.lang.Command;
import org.teiid.query.sql.symbol.Expression;
public class TestAggregateSymbolCollectorVisitor extends TestCase {
public TestAggregateSymbolCollectorVisitor(String name) {
super(name);
}
public void helpTestCollectAggregates(String sql, String[] aggs, String[] elems) throws QueryParserException {
// Parse command
Command command = QueryParser.getQueryParser().parseCommand(sql);
// Find aggregates
List<Expression> foundAggs = new ArrayList<Expression>();
List<Expression> foundElements = new ArrayList<Expression>();
AggregateSymbolCollectorVisitor.getAggregates(command, foundAggs, foundElements, null, null, null);
// Compare
assertEquals("Incorrect number of aggregates: " + foundAggs, aggs.length, foundAggs.size()); //$NON-NLS-1$
for(int i=0; i<aggs.length; i++) {
assertEquals("Incorrect agg match at " + i, aggs[i], foundAggs.get(i).toString()); //$NON-NLS-1$
}
assertEquals("Incorrect number of elements: " + foundElements, elems.length, foundElements.size()); //$NON-NLS-1$
for(int i=0; i<elems.length; i++) {
assertEquals("Incorrect agg match at " + i, elems[i], foundElements.get(i).toString()); //$NON-NLS-1$
}
}
public void testCollectAggs1() throws QueryParserException {
helpTestCollectAggregates("SELECT COUNT(*) FROM pm1.g1", new String[] { "COUNT(*)"}, new String[] { }); //$NON-NLS-1$ //$NON-NLS-2$
}
public void testCollectAggs2() throws QueryParserException {
helpTestCollectAggregates("SELECT * FROM pm1.g1 HAVING MAX(e2) > 0", //$NON-NLS-1$
new String[] { "MAX(e2)"}, //$NON-NLS-1$
new String[] { });
}
public void testCollectAggs3() throws QueryParserException {
helpTestCollectAggregates(
"SELECT COUNT(e1), MAX(DISTINCT e1) FROM pm1.g1 GROUP BY e1 HAVING MAX(e2) > 0 AND NOT MIN(e2) < 100", //$NON-NLS-1$
new String[] { "COUNT(e1)", "MAX(DISTINCT e1)", "MAX(e2)", "MIN(e2)"}, //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
new String[] { "e1"}); //$NON-NLS-1$
}
public void testCollectAggs4() throws QueryParserException {
helpTestCollectAggregates(
"SELECT e1 FROM pm1.g1 GROUP BY e1 HAVING MAX(e2) > 0 AND NOT MIN(e2) < 100 AND e3 < 200", //$NON-NLS-1$
new String[] { "MAX(e2)", "MIN(e2)"}, //$NON-NLS-1$ //$NON-NLS-2$
new String[] { "e1", "e1", "e3"}); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
}