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tim |
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#include "math/PolynomialTestCase.hpp" |
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// Registers the fixture into the 'registry' |
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CPPUNIT_TEST_SUITE_REGISTRATION( PolynomialTestCase ); |
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void PolynomialTestCase::testPolynomial(){ |
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DoublePolynomial dp1; |
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dp1.setCoefficient(1, 3.0); |
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dp1.setCoefficient(2, 1.0); |
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dp1.setCoefficient(3, 2.0); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp1.getCoefficient(1), 3.0, 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp1.getCoefficient(2), 1.0, 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp1.getCoefficient(3), 2.0, 0.000001); |
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CPPUNIT_ASSERT(dp1.size() == 3); |
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CPPUNIT_ASSERT(dp1.begin()->first == 1); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp1.begin()->second ,3.0, 0.000001); |
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dp1.addCoefficient(2, 1.5); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp1.getCoefficient(2), 2.5, 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, dp1.evaluate(0.0), 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(7.5, dp1.evaluate(1.0), 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(32.0, dp1.evaluate(2.0), 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(-2.5, dp1.evaluate(-1.0), 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(14.0, dp1.evaluateDerivative(1.0), 0.000001); |
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//dp2 = x^2 + 3x +2 |
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DoublePolynomial dp2; |
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dp2.setCoefficient(0, 2.0); |
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dp2.setCoefficient(1, 3.0); |
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dp2.setCoefficient(2, 1.0); |
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//dp3 = x^3 + 2x |
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DoublePolynomial dp3; |
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dp3.setCoefficient(1, 2.0); |
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dp3.setCoefficient(3, 1.0); |
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//dp4 = x^3 + x^2 +5x + 2 |
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DoublePolynomial dp4 = dp2 + dp3; |
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CPPUNIT_ASSERT(dp4.size() == 4); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp4.getCoefficient(0), 2.0, 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp4.getCoefficient(1), 5.0, 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp4.getCoefficient(2), 1.0, 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp4.getCoefficient(3), 1.0, 0.000001); |
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//dp5 = -x^3 + x^2 +x + 2 |
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DoublePolynomial dp5 = dp2 - dp3; |
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CPPUNIT_ASSERT(dp5.size() == 4); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp5.getCoefficient(0), 2.0, 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp5.getCoefficient(1), 1.0, 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp5.getCoefficient(2), 1.0, 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp5.getCoefficient(3), -1.0, 0.000001); |
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//dp6 = x^5 + 3x^4 + 4x^3 + 6x^2 + 4x |
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DoublePolynomial dp6 = dp2 * dp3; |
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CPPUNIT_ASSERT(dp6.size() == 5); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp6.getCoefficient(1), 4, 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp6.getCoefficient(2), 6, 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp6.getCoefficient(3), 4, 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp6.getCoefficient(4), 3, 0.000001); |
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CPPUNIT_ASSERT_DOUBLES_EQUAL(dp6.getCoefficient(5), 1, 0.000001); |
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} |
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