public void GetSide_IncorrectTypeOfSide_ShouldFail(string sideA, string sideB, string sideC)
{
var ui = new TriangleUI();
var app = new TrianglesSortingApp(ui);
Assert.Throws <FormatException>(() => app.Run(sideA, sideB, sideC, "Test"));
}
public void CheckSides_TriangleIsNotValid_ShouldFail(string sideA, string sideB, string sideC, string parameterName)
{
var ui = new TriangleUI();
var app = new TrianglesSortingApp(ui);
Assert.Throws <ArgumentException>(parameterName, () => app.Run(sideA, sideB, sideC, "Test"));
}