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add mirr test 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1922096 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
PJ Fanning 2024-11-25 21:09:54 +00:00
parent edb9aeaca5
commit 5874f55dcc
2 changed files with 38 additions and 3 deletions
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6
poi/src/main/java/org/apache/poi/ss/formula/functions/Mirr.java
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@ -56,10 +56,10 @@ public class Mirr extends MultiOperandNumericFunction {
@Override @Override
protected double evaluate(double[] values) throws EvaluationException { protected double evaluate(double[] values) throws EvaluationException {
double financeRate = values[values.length-2]; final double financeRate = values[values.length-2];
double reinvestRate = values[values.length-1]; final double reinvestRate = values[values.length-1];
double[] mirrValues = Arrays.copyOf(values, values.length - 2); final double[] mirrValues = Arrays.copyOf(values, values.length - 2);
boolean mirrValuesAreAllNegatives = true; boolean mirrValuesAreAllNegatives = true;
boolean mirrValuesAreAllPositives = true; boolean mirrValuesAreAllPositives = true;

35
poi/src/test/java/org/apache/poi/ss/formula/functions/TestMirr.java
View File

@ -112,6 +112,41 @@ final class TestMirr {
assertEquals(0.18736225093, res, 0.00000001); assertEquals(0.18736225093, res, 0.00000001);
} }
@Test
void testMicrosoftSample() {
// https://support.microsoft.com/en-us/office/mirr-function-b020f038-7492-4fb4-93c1-35c345b53524
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet("Sheet1");
int row = 0;
sheet.createRow(row++).createCell(0).setCellValue("Data");
sheet.createRow(row++).createCell(0).setCellValue(-120000);
sheet.createRow(row++).createCell(0).setCellValue(39000);
sheet.createRow(row++).createCell(0).setCellValue(30000);
sheet.createRow(row++).createCell(0).setCellValue(21000);
sheet.createRow(row++).createCell(0).setCellValue(37000);
sheet.createRow(row++).createCell(0).setCellValue(46000);
sheet.createRow(row++).createCell(0).setCellValue(0.1);
sheet.createRow(row++).createCell(0).setCellValue(0.12);
HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
HSSFCell cell = sheet.createRow(row).createCell(0);
cell.setCellFormula("MIRR(A2:A7, A8, A9)");
fe.clearAllCachedResultValues();
fe.evaluateFormulaCell(cell);
assertEquals(0.126094, cell.getNumericCellValue(), 0.00000015);
cell.setCellFormula("MIRR(A2:A5, A8, A9)");
fe.clearAllCachedResultValues();
fe.evaluateFormulaCell(cell);
assertEquals(-0.048044655, cell.getNumericCellValue(), 0.00000015);
cell.setCellFormula("MIRR(A2:A7, A8, .14)");
fe.clearAllCachedResultValues();
fe.evaluateFormulaCell(cell);
assertEquals(0.134759111, cell.getNumericCellValue(), 0.00000015);
}
@Test @Test
void testMirrFromSpreadsheet() { void testMirrFromSpreadsheet() {
HSSFWorkbook wb = HSSFTestDataSamples.openSampleWorkbook("mirrTest.xls"); HSSFWorkbook wb = HSSFTestDataSamples.openSampleWorkbook("mirrTest.xls");