/*
* Copyright (c) 2007-2014 Concurrent, Inc. All Rights Reserved.
*
* Project and contact information: http://www.cascading.org/
*
* This file is part of the Cascading project.
*
* 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 cascading.lingual.optiq;
import java.math.BigDecimal;
import java.util.Collections;
import org.eigenbase.reltype.RelDataType;
import org.eigenbase.reltype.RelDataTypeFactory;
import org.eigenbase.rex.RexBuilder;
import org.eigenbase.rex.RexLocalRef;
import org.eigenbase.rex.RexNode;
import org.eigenbase.rex.RexProgram;
import org.eigenbase.rex.RexProgramBuilder;
import org.eigenbase.util.NlsString;
import org.junit.Ignore;
import org.junit.Test;
import static org.junit.Assert.*;
/** Unit test for {@link CalcProjectUtil}. */
public class CalcProjectUtilTest
{
@Test
/** Tests that we can analyze a program with no inputs or outputs. */
public void testAnalyzeProgram()
{
final RelDataTypeFactory typeFactory = new FieldTypeFactory();
final RelDataType inputType = typeFactory.createStructType( new RelDataTypeFactory.FieldInfoBuilder() );
final RelDataType outputType = typeFactory.createStructType( new RelDataTypeFactory.FieldInfoBuilder() );
final RexProgram program = new RexProgram(
inputType,
Collections.<RexNode>emptyList(),
Collections.<RexLocalRef>emptyList(),
null,
outputType );
final ProgramUtil.Analyzed analyze = ProgramUtil.analyze( program );
assertFalse( analyze.hasConstants );
assertFalse( analyze.hasFunctions );
assertNotNull( analyze.permutation );
assertTrue( analyze.permutation.isIdentity() );
assertEquals( 0, analyze.permutation.size() );
assertFalse( analyze.isComplex );
}
@Ignore
@Test
/** Tests that we can analyze a program with no inputs that outputs two
* constants. */
public void testAnalyzeTwoConstantProgram()
{
final RelDataTypeFactory typeFactory = new FieldTypeFactory();
final RelDataType inputType = typeFactory.createStructType( new RelDataTypeFactory.FieldInfoBuilder() );
final RexBuilder builder = new RexBuilder( typeFactory );
final RexProgramBuilder programBuilder = new RexProgramBuilder( inputType, builder );
programBuilder.addProject( builder.makeExactLiteral( BigDecimal.ONE ), "x" );
programBuilder.addProject( builder.makeCharLiteral( new NlsString( "foo", null, null ) ), "y" );
final RexProgram program = programBuilder.getProgram();
final ProgramUtil.Analyzed analyze = ProgramUtil.analyze( program );
assertTrue( analyze.hasConstants );
assertFalse( analyze.hasFunctions );
assertNull( analyze.permutation );
assertFalse( analyze.isComplex );
}
}