public void GetViewSolution_InfinityCountSolutions_CorrectPartView()
{
// arrange
var paramsEquation = new ParamsEquation(0, 0, 0);
var s = SolutionEquation.CreateInfinityCountSolutions();
// act
var view = paramsEquation.GetViewSolution(s);
// assert
Assert.IsTrue(view.Contains(paramsEquation.ToString()));
Assert.IsTrue(view.Contains("бесконечное число корней"));
}
public void GetViewSolution_NotSolutions_CorrectPartView()
{
// arrange
var paramsEquation = new ParamsEquation(0, 0, 0);
var s = SolutionEquation.CreateWithoutSolutions();
// act
var view = paramsEquation.GetViewSolution(s);
// assert
Assert.IsTrue(view.Contains(paramsEquation.ToString()));
Assert.IsTrue(view.Contains("нет корней"));
}
public void GetViewSolution_OneSolutions_CorrectPartView()
{
// arrange
var x = 1;
var paramsEquation = new ParamsEquation(0, 0, 0);
var s = SolutionEquation.CreateSolutions(x);
// act
var view = paramsEquation.GetViewSolution(s);
// assert
Assert.IsTrue(view.Contains(paramsEquation.ToString()));
Assert.IsTrue(view.Contains($"один корень: x = {x}"));
}
public void GetViewSolution_TwoSolutions_CorrectPartView()
{
// arrange
var x1 = 1;
var x2 = 2;
var paramsEquation = new ParamsEquation(0, 0, 0);
var s = SolutionEquation.CreateSolutions(x1, x2);
// act
var view = paramsEquation.GetViewSolution(s);
// assert
Assert.IsTrue(view.Contains(paramsEquation.ToString()));
Assert.IsTrue(view.Contains($"два корня: x1 = {x1}, x2 = {x2}"));
}
public static string GetViewSolution(this ParamsEquation paramsEquation, SolutionEquation solutionEquation)
{
switch (solutionEquation.CountSolutions)
{
case CountSolutionsEquation.ONE:
return($"У уравнения {paramsEquation} один корень: x = {solutionEquation.X1}.");
case CountSolutionsEquation.TWO:
return($"У уравнения {paramsEquation} два корня: x1 = {solutionEquation.X1}, x2 = {solutionEquation.X2}.");
case CountSolutionsEquation.INFINITY_COUNT:
return($"У уравнения {paramsEquation} бесконечное число корней.");
default:
return($"У уравнения {paramsEquation} нет корней.");
}
}
