/* ====================================================================
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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.
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package org.apache.poi.hssf.record.formula.functions;
import junit.framework.TestCase;
import org.apache.poi.hssf.record.formula.functions.Offset.LinearOffsetRange;
/**
* Tests for OFFSET function implementation
*
* @author Josh Micich
*/
public final class TestOffset extends TestCase {
private static void confirmDoubleConvert(double doubleVal, int expected) {
assertEquals(expected, Offset.convertDoubleToInt(doubleVal));
}
/**
* Excel's double to int conversion (for function 'OFFSET()') behaves more like Math.floor().
* Note - negative values are not symmetrical
*/
public void testDoubleConversion() {
confirmDoubleConvert(100.09, 100);
confirmDoubleConvert(100.01, 100);
confirmDoubleConvert(100.00, 100);
confirmDoubleConvert(99.99, 99);
confirmDoubleConvert(+2.01, +2);
confirmDoubleConvert(+2.00, +2);
confirmDoubleConvert(+1.99, +1);
confirmDoubleConvert(+1.01, +1);
confirmDoubleConvert(+1.00, +1);
confirmDoubleConvert(+0.99, 0);
confirmDoubleConvert(+0.01, 0);
confirmDoubleConvert( 0.00, 0);
confirmDoubleConvert(-0.01, -1);
confirmDoubleConvert(-0.99, -1);
confirmDoubleConvert(-1.00, -1);
confirmDoubleConvert(-1.01, -2);
confirmDoubleConvert(-1.99, -2);
confirmDoubleConvert(-2.00, -2);
confirmDoubleConvert(-2.01, -3);
}
public void testLinearOffsetRange() {
LinearOffsetRange lor;
lor = new LinearOffsetRange(3, 2);
assertEquals(3, lor.getFirstIndex());
assertEquals(4, lor.getLastIndex());
lor = lor.normaliseAndTranslate(0); // expected no change
assertEquals(3, lor.getFirstIndex());
assertEquals(4, lor.getLastIndex());
lor = lor.normaliseAndTranslate(5);
assertEquals(8, lor.getFirstIndex());
assertEquals(9, lor.getLastIndex());
// negative length
lor = new LinearOffsetRange(6, -4).normaliseAndTranslate(0);
assertEquals(3, lor.getFirstIndex());
assertEquals(6, lor.getLastIndex());
// bounds checking
lor = new LinearOffsetRange(0, 100);
assertFalse(lor.isOutOfBounds(0, 16383));
lor = lor.normaliseAndTranslate(16300);
assertTrue(lor.isOutOfBounds(0, 16383));
assertFalse(lor.isOutOfBounds(0, 65535));
}
}