package function.builtin;

import static testutil.TestUtilities.*;

import org.junit.Test;

import function.ArgumentValidator.*;

public class LISTPTester {

    @Test
    public void testListpWithList_ReturnsT() {
        String input = "(listp '(1))";

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

    @Test
    public void testListWithNonList_ReturnsNil() {
        String input = "(listp 1)";

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

    @Test(expected = TooFewArgumentsException.class)
    public void testListpWithTooFewArguments() {
        String input = "(listp)";

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

    @Test(expected = TooManyArgumentsException.class)
    public void testListpWithTooManyArguments() {
        String input = "(listp '() '())";

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

}