public void TestMethod1()
{
var parser = FunctionParser <double> .CreateStandartDouble();
parser.TwoParamFunctions.Add(new TwoParamFunction <double>("test", (d, d1) => d1 + d));
parser.CustomFunctions.Add(new MultipleParamFunction <double>("tests", list => list.Aggregate((curr, prev) => curr + prev)));
parser.CustomFunctions.Add(new FixedParamFunction <double>("sos", list => list[0] * list[1], 2));
parser.CustomFunctions.Add(new ZeroParamFunction <double>("time", () => DateTime.Now.Second));
HashSet <string> param;
Dictionary <double, string> tests = new Dictionary <double, string>
{
{ 299, "(a+b)*b" },
{ Math.PI *Math.PI, "pi*pi" },
{ 6, "sos(3,2)" },
{ 36, "6*sos(3,2)" },
{ -6, "-(((6)))" },
{ 11, "-(-(11))" },
{ -21, "-(-(-(-(-(((21)))))))" },
{ -1, "-1" },
{ 7, "tests(1,2,3,1)" },
{ 4, "test(1, 3)" },
{ 3, "3" },
{ 15, "sin(pi/2)+2^4-1-1" },
{ 40, "(8 - 1 + 3) * 6 - ((3 + 7) * 2)" },
{ 121963752, "462*823-61-263+518*490*479+851+276+13-208-418-537+486+476+15*227-274" }
};
string[] errorTests =
{
"(((-1"
};
foreach (var item in tests)
{
Assert.AreEqual(item.Key,
parser.Parse(item.Value, out param)
.Evaluate(new Dictionary <string, double> {
{ "a", 10 }, { "b", 13 }
}));
}
parser.TwoParamMiddleFunctions.Remove(parser.TwoParamMiddleFunctions.First(f => f.Name == "-"));
parser.TwoParamMiddleFunctions.Add(new MiddleFunction <double>('-', 1, (f, s) => f - s));
foreach (var error in errorTests)
{
bool hasException = false;
try
{
parser.Parse(error);
}
catch (Exception)
{
hasException = true;
}
Assert.AreEqual(true, hasException, $"Тест \"{error}\" не выдал ошибку");
}
}