addRow(sheet, 6, 26000, "Net income for the fifth year");
HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
HSSFCell cell = wb.getSheetAt(0).getRow(0).createCell(100);
- assertDouble(fe, cell, "IRR(A2:A6)", -0.02124484827341093);
- assertDouble(fe, cell, "IRR(A2:A7)", 0.08663094803653162);
- assertDouble(fe, cell, "IRR(A2:A4,-0.1)", -0.44350694133474067);
+ final double tolerance = 1E-4;
+ assertDouble(fe, cell, "IRR(A2:A6)", -0.02124484827341093, tolerance);
+ assertDouble(fe, cell, "IRR(A2:A7)", 0.08663094803653162, tolerance);
+ assertDouble(fe, cell, "IRR(A2:A4,-0.1)", -0.44350694133474067, tolerance);
}
}
1462.8749999999998, 1462.8749999999998, 1462.8749999999998, 1462.8749999999998, 1462.8749999999998,
1462.8749999999998, 1462.8749999999998, 1462.8749999999998, 10000.0};
double result = Irr.irr(incomes);
- assertEquals(-0.009463562705856032, result);
+ assertEquals(-0.009463562705856032, result, 1E-4); // should agree within 0.01%
}
private static void assertFormulaResult(CellValue cv, HSSFCell cell){
assertEquals(expectedResult, result.getNumberValue());
}
+ public static void assertDouble(FormulaEvaluator fe, Cell cell, String formulaText,
+ double expectedResult, double tolerance) {
+ cell.setCellFormula(formulaText);
+ fe.notifyUpdateCell(cell);
+ CellValue result = fe.evaluate(cell);
+ assertEquals(CellType.NUMERIC, result.getCellType());
+ assertEquals(expectedResult, result.getNumberValue(), tolerance);
+ }
+
public static void assertError(FormulaEvaluator fe, Cell cell, String formulaText, FormulaError expectedError) {
cell.setCellFormula(formulaText);
fe.notifyUpdateCell(cell);