/*
* 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.facebook.presto.operator.scalar;
import com.facebook.presto.metadata.FunctionListBuilder;
import com.facebook.presto.spi.function.ScalarOperator;
import com.facebook.presto.spi.function.SqlType;
import com.facebook.presto.spi.type.StandardTypes;
import org.testng.annotations.Test;
import static com.facebook.presto.spi.function.OperatorType.ADD;
@SuppressWarnings("UtilityClassWithoutPrivateConstructor")
public class TestOperatorValidation
{
@Test(expectedExceptions = IllegalArgumentException.class, expectedExceptionsMessageRegExp = "ADD operator must have exactly 2 argument.*")
public void testInvalidArgumentCount()
{
extractScalars(InvalidArgumentCount.class);
}
public static final class InvalidArgumentCount
{
@ScalarOperator(ADD)
@SqlType(StandardTypes.BIGINT)
public static long add(@SqlType(StandardTypes.BIGINT) long value)
{
return 0;
}
}
private static void extractScalars(Class<?> clazz)
{
new FunctionListBuilder().scalars(clazz);
}
}