package function.builtin.special;

import static testutil.TestUtilities.*;

import org.junit.Test;

import function.ArgumentValidator.*;

public class DEFUNTester {

    @Test
    public void testDefun() {
        String input = "(defun f () nil)";

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

    @Test(expected = BadArgumentTypeException.class)
    public void testDefunWithNonSymbolName() {
        evaluateString("(defun 1 () ())");
    }

    @Test(expected = TooFewArgumentsException.class)
    public void testApplyWithTooFewArguments() {
        evaluateString("(defun 1 ())");
    }

}