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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.pinot.core.operator.transform.function;
import java.math.BigDecimal;
import java.math.RoundingMode;
import org.apache.pinot.common.request.context.ExpressionContext;
import org.apache.pinot.common.request.context.RequestContextUtils;
import org.testng.Assert;
import org.testng.annotations.Test;
public class RoundDecimalTransformFunctionTest extends BaseTransformFunctionTest {
@Test
public void testRoundDecimalTransformFunction() {
ExpressionContext expression =
RequestContextUtils.getExpression(String.format("round_decimal(%s,%s)", INT_SV_COLUMN, LONG_SV_COLUMN));
TransformFunction transformFunction = TransformFunctionFactory.get(expression, _dataSourceMap);
Assert.assertTrue(transformFunction instanceof RoundDecimalTransformFunction);
Assert.assertEquals(transformFunction.getName(), RoundDecimalTransformFunction.FUNCTION_NAME);
double[] expectedValues = new double[NUM_ROWS];
expression = RequestContextUtils.getExpression(String.format("round_decimal(%s,2)", DOUBLE_SV_COLUMN));
transformFunction = TransformFunctionFactory.get(expression, _dataSourceMap);
Assert.assertTrue(transformFunction instanceof RoundDecimalTransformFunction);
for (int i = 0; i < NUM_ROWS; i++) {
expectedValues[i] = round(_doubleSVValues[i], 2);
}
testTransformFunction(transformFunction, expectedValues);
expression = RequestContextUtils.getExpression(String.format("round_decimal(%s, -2)", DOUBLE_SV_COLUMN));
transformFunction = TransformFunctionFactory.get(expression, _dataSourceMap);
Assert.assertTrue(transformFunction instanceof RoundDecimalTransformFunction);
for (int i = 0; i < NUM_ROWS; i++) {
expectedValues[i] = round(_doubleSVValues[i], -2);
}
testTransformFunction(transformFunction, expectedValues);
expression = RequestContextUtils.getExpression(String.format("round_decimal(%s)", DOUBLE_SV_COLUMN));
transformFunction = TransformFunctionFactory.get(expression, _dataSourceMap);
Assert.assertTrue(transformFunction instanceof RoundDecimalTransformFunction);
for (int i = 0; i < NUM_ROWS; i++) {
expectedValues[i] = round(_doubleSVValues[i], 0);
}
testTransformFunction(transformFunction, expectedValues);
}
public Double round(double a, int b) {
return BigDecimal.valueOf(a).setScale(b, RoundingMode.HALF_UP).doubleValue();
}
}