package function.builtin;

import static testutil.TestUtilities.*;

import org.junit.Test;

import function.ArgumentValidator.TooFewArgumentsException;

public class FUNCALLTester {

    @Test
    public void testFuncallWithNumbers() {
        String input = "(funcall '+ 1 2 3)";

        assertSExpressionsMatch(evaluateString(input), parseString("6"));
    }

    @Test
    public void testFuncallWithUserDefinedFunction() {
        String defineUserFunction = "(defun x (n m) (+ n m))";
        String input = "(funcall 'x 2 30)";

        evaluateString(defineUserFunction);
        assertSExpressionsMatch(evaluateString(input), parseString("32"));
    }

    @Test(expected = TooFewArgumentsException.class)
    public void testFuncallWithTooFewArguments() {
        evaluateString("(funcall)");
    }

}