diff options
Diffstat (limited to 'chart2/qa/extras/chart2_trendcalculators.cxx')
| -rw-r--r-- | chart2/qa/extras/chart2_trendcalculators.cxx | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/chart2/qa/extras/chart2_trendcalculators.cxx b/chart2/qa/extras/chart2_trendcalculators.cxx new file mode 100644 index 000000000..42dce791d --- /dev/null +++ b/chart2/qa/extras/chart2_trendcalculators.cxx @@ -0,0 +1,209 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +#include "charttest.hxx" +#include <com/sun/star/chart2/XRegressionCurveContainer.hpp> +#include <com/sun/star/chart2/XRegressionCurveCalculator.hpp> +#include <SpecialCharacters.hxx> + + +// Define the index of sheets in the test document +#define SHEET_POTENTIAL1 0 +#define SHEET_POTENTIAL2 ( SHEET_POTENTIAL1 + 1) +#define SHEET_POTENTIAL_LAST ( SHEET_POTENTIAL2 ) + +#define SHEET_LINEAR1 ( SHEET_POTENTIAL_LAST + 1 ) +#define SHEET_LINEAR_LAST ( SHEET_LINEAR1 ) + +#define SHEET_POLYNOMIAL1 ( SHEET_LINEAR_LAST + 1 ) +#define SHEET_POLYNOMIAL_LAST ( SHEET_POLYNOMIAL1 ) + +#define SHEET_EXPONENTIAL1 ( SHEET_POLYNOMIAL_LAST + 1 ) +#define SHEET_EXPONENTIAL2 ( SHEET_EXPONENTIAL1 + 1 ) + +class Chart2TrendCalculators : public ChartTest +{ +public: + void setUp() override; + void tearDown() override; + + void testPotentialRegression1(); + void testPotentialRegression2(); + void testLinearRegression1(); + void testPolynomialRegression1(); + void testExponentialRegression1(); + void testExponentialRegression2(); + + CPPUNIT_TEST_SUITE(Chart2TrendCalculators); + CPPUNIT_TEST(testPotentialRegression1); + CPPUNIT_TEST(testPotentialRegression2); + CPPUNIT_TEST(testLinearRegression1); + CPPUNIT_TEST(testPolynomialRegression1); + CPPUNIT_TEST(testExponentialRegression1); + CPPUNIT_TEST(testExponentialRegression2); + CPPUNIT_TEST_SUITE_END(); + +private: + + Reference<chart2::XRegressionCurve> m_xCurve; + Reference< chart2::XRegressionCurveCalculator > m_xRegressionCurveCalculator; + + void loadCalculatorFromSheet(sal_Int32 nSheet); + void checkCalculator( + const Sequence< double >& xValues, const Sequence< double >& yValues, + const OUString& sExpectedFormula ); + +}; + +void Chart2TrendCalculators::setUp() +{ + ChartTest::setUp(); + load("/chart2/qa/extras/data/ods/", "trend_calculators.ods"); +} + +void Chart2TrendCalculators::tearDown() +{ + m_xRegressionCurveCalculator.clear(); + m_xCurve.clear(); + ChartTest::tearDown(); +} + +void Chart2TrendCalculators::loadCalculatorFromSheet(sal_Int32 nSheet) +{ + Reference<chart2::XChartDocument> xChartDoc = getChartDocFromSheet(nSheet, mxComponent); + CPPUNIT_ASSERT_MESSAGE("failed to load chart", xChartDoc.is()); + CPPUNIT_ASSERT(xChartDoc.is()); + + Reference<chart2::XDataSeries> xDataSeries = getDataSeriesFromDoc(xChartDoc, 0); + CPPUNIT_ASSERT(xDataSeries.is()); + + Reference<chart2::XRegressionCurveContainer> xRegressionCurveContainer(xDataSeries, UNO_QUERY_THROW); + + Sequence< Reference< chart2::XRegressionCurve > > xRegressionCurveSequence = xRegressionCurveContainer->getRegressionCurves(); + CPPUNIT_ASSERT_EQUAL(sal_Int32(1), xRegressionCurveSequence.getLength()); + + m_xCurve = xRegressionCurveSequence[0]; + CPPUNIT_ASSERT(m_xCurve.is()); + + m_xRegressionCurveCalculator = m_xCurve->getCalculator(); + CPPUNIT_ASSERT(m_xRegressionCurveCalculator.is()); +} + +void Chart2TrendCalculators::checkCalculator( + const Sequence< double >& xValues, const Sequence< double >& yValues, + const OUString& sExpectedFormula ) +{ + m_xRegressionCurveCalculator->recalculateRegression( xValues, yValues ); + OUString aRepresentation = m_xRegressionCurveCalculator->getRepresentation (); + CPPUNIT_ASSERT_EQUAL( sExpectedFormula, aRepresentation ); + double r2 = m_xRegressionCurveCalculator->getCorrelationCoefficient(); + CPPUNIT_ASSERT_DOUBLES_EQUAL( 1.0, r2, 1e-8 ); +} + +// test y = A x ^ B +void Chart2TrendCalculators::testPotentialRegression1() +{ + loadCalculatorFromSheet( SHEET_POTENTIAL1 ); + m_xRegressionCurveCalculator->setRegressionProperties( 0, false, 0, 0 ); + Sequence< double > xValues( 7 ); + Sequence< double > yValues( 7 ); + for (int i=0; i<7; i++) + { + const double d = static_cast<double>(i); + xValues[i] = d; + yValues[i] = 2.0 * pow ( d, 3 ); + } + checkCalculator( xValues, yValues, "f(x) = 2 x^3"); +} + +// test y = A x ^ B +void Chart2TrendCalculators::testPotentialRegression2() +{ + loadCalculatorFromSheet( SHEET_POTENTIAL2 ); + m_xRegressionCurveCalculator->setRegressionProperties( 0, false, 0, 0 ); + Sequence< double > xValues( 7 ); + Sequence< double > yValues( 7 ); + for (int i=0; i<7; i++) + { + const double d = static_cast<double>(i); + xValues[i] = d; + yValues[i] = -2.0 * pow ( d, 3 ); + } + checkCalculator( xValues, yValues, "f(x) = "+ OUStringChar(aMinusSign) +" 2 x^3"); +} + +// test y = - 2 X - 5 +void Chart2TrendCalculators::testLinearRegression1() +{ + loadCalculatorFromSheet( SHEET_LINEAR1 ); + m_xRegressionCurveCalculator->setRegressionProperties( 1, false, 0, 0 ); + Sequence< double > xValues( 7 ); + Sequence< double > yValues( 7 ); + for (int i=0; i<7; i++) + { + const double d = static_cast<double>(i); + xValues[i] = d; + yValues[i] = - 2.0 * d - 5.0 ; + } + checkCalculator( xValues, yValues, "f(x) = "+ OUStringChar(aMinusSign) +" 2 x "+ OUStringChar(aMinusSign) +" 5"); +} + +// test y = A x ^ B +void Chart2TrendCalculators::testPolynomialRegression1() +{ + loadCalculatorFromSheet( SHEET_POLYNOMIAL1 ); + m_xRegressionCurveCalculator->setRegressionProperties( 2, false, 0, 0 ); + Sequence< double > xValues( 7 ); + Sequence< double > yValues( 7 ); + for (int i=0; i<7; i++) + { + const double d = static_cast<double>(i); + xValues[i] = d; + yValues[i] = - 2.0 * d * d + 4 * d - 5; + } + OUString sExpectedFormula( "f(x) = "+ OUStringChar(aMinusSign) +" 2 x" + OUStringChar( aSuperscriptFigures[2] ) + " + 4 x "+ OUStringChar(aMinusSign) +" 5" ); + checkCalculator( xValues, yValues, sExpectedFormula ); +} + +void Chart2TrendCalculators::testExponentialRegression1() +{ + loadCalculatorFromSheet( SHEET_EXPONENTIAL1 ); + m_xRegressionCurveCalculator->setRegressionProperties( 0, false, 0, 0 ); + Sequence< double > xValues( 7 ); + Sequence< double > yValues( 7 ); + for (int i=0; i<7; i++) + { + const double d = static_cast<double>(i); + xValues[i] = d; + yValues[i] = 2.0 * exp ( 0.3 * d ); + } + checkCalculator( xValues, yValues, "f(x) = 2 exp( 0.3 x )"); +} + +void Chart2TrendCalculators::testExponentialRegression2() +{ + loadCalculatorFromSheet( SHEET_EXPONENTIAL2 ); + m_xRegressionCurveCalculator->setRegressionProperties( 0, false, 0, 0 ); + Sequence< double > xValues( 7 ); + Sequence< double > yValues( 7 ); + for (int i=0; i<7; i++) + { + const double d = static_cast<double>(i); + xValues[i] = d; + yValues[i] = -2.0 * exp ( 0.3 * d ); + } + checkCalculator( xValues, yValues, "f(x) = "+ OUStringChar(aMinusSign) + " 2 exp( 0.3 x )"); +} + + +CPPUNIT_TEST_SUITE_REGISTRATION(Chart2TrendCalculators); + +CPPUNIT_PLUGIN_IMPLEMENT(); + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |