public void Init_EquationSolver_should_return_message_about_no_solutions()
{
double[,] _matrix = { {-3, 4, 1, 4, -1},
{0, 1, 3, 2, -1},
{4, 0, -2, -3, 4},
{0, 0, 0, 0, -2}};
EquationSolver _solver = new EquationSolver();
_solver.Init(_matrix);
Assert.AreEqual("There are no solutions!", _solver.Solve());
}
public void Init_EquationSolver_should_return_message_about_infinitely_many_solutions()
{
double[,] _matrix = { {-3, 4, 1, 4, -1, 6},
{0, 1, 3, 2, -1, 1},
{4, 0, -2, -3, 4, -3},
{5, 0, -4, 1, 1, 9}};
EquationSolver _solver = new EquationSolver();
_solver.Init(_matrix);
Assert.AreEqual("There are infinitely many solutions!", _solver.Solve());
}
public void Init_EquationSolver_should_return_message_about_unique_solution()
{
double[,] _matrix = { {-3, 4, 1, 4, -1},
{0, 1, 3, 2, -1},
{4, 0, -2, -3, 4},
{1000, 3, 1, -5, -2}};
EquationSolver _solver = new EquationSolver();
_solver.Init(_matrix);
Assert.AreEqual("There is unique solution!", _solver.Solve());
}
public void Init_EquationSolver_should_return_message_if_matrix_is_empty()
{
double[,] _matrix = { { } };
EquationSolver _solver = new EquationSolver();
_solver.Init(_matrix);
Assert.AreEqual("Entering matrix is empty!", _solver.Solve());
}
public void Init_EquationSolver_should_return_message_about_unique_solution3()
{
double[,] _matrix = { {8432, 4825, 4305, 6171},
{643, 4399, 7976, 0},
{8822, 7372, 9169, 0}};
EquationSolver _solver = new EquationSolver();
_solver.Init(_matrix);
Assert.AreEqual("There is unique solution!", _solver.Solve());
}
public void Init_EquationSolver_should_return_message_about_unique_solution2()
{
double[,] _matrix = { {78, 53, 97, 43, 69, 86},
{73, 94, 3, 90, 4, 77},
{51, 88, 31, 94, 14, 36},
{91, 60, 96, 38, 74, 56},
{64, 34, 1, 28, 83, 15}};
EquationSolver _solver = new EquationSolver();
_solver.Init(_matrix);
Assert.AreEqual("There is unique solution!", _solver.Solve());
}