public void IterationsAlgoritmSystemIsWrong() { // Arrange double[] firstEquationCoeffs = new double[] { 4, -3, 2, -1 }; double firstEquationFreeMember = 8; LinearEquation equation1 = new LinearEquation(firstEquationCoeffs, firstEquationFreeMember); double[] secondEquationCoeffs = new double[] { 3, -2, 1, -3 }; double secondEquationFreeMember = 7; LinearEquation equation2 = new LinearEquation(secondEquationCoeffs, secondEquationFreeMember); double[] thirdEquationCoeffs = new double[] { 5, -3, 1, -8 }; double thirdEquationFreeMember = 1; LinearEquation equation3 = new LinearEquation(thirdEquationCoeffs, thirdEquationFreeMember); LinearEquation[] equations = new LinearEquation[] { equation1, equation2, equation3 }; LinearEquationSystem equationSystem = new LinearEquationSystem(equations); double[] answer = new double[equations.Length]; bool isExceptionThrown = false; try { answer = EquationSolver.Iterations(equationSystem); } catch (Exception) { isExceptionThrown = true; } finally { Assert.AreEqual(isExceptionThrown, true); } }
public void IterationsAlgoritmTest() { // Arrange double[] firstEquationCoeffs = new double[] { 2, -3 }; double firstEquationFreeMember = 5; double[] secondEquationCoeffs = new double[] { 1, -2 }; double secondEquationFreeMember = 3; LinearEquation equation1 = new LinearEquation(firstEquationCoeffs, firstEquationFreeMember); LinearEquation equation2 = new LinearEquation(secondEquationCoeffs, secondEquationFreeMember); LinearEquationSystem equationSystem = new LinearEquationSystem(new LinearEquation[] { equation1, equation2 }); // Expect double[] expectedAnswer = new double[] { 1, -1 }; // Actual double[] actualAnswer = EquationSolver.Iterations(equationSystem); Assert.AreEqual(expectedAnswer[0], actualAnswer[0], 0.01); Assert.AreEqual(expectedAnswer[1], actualAnswer[1], 0.01); }