import java.lang.reflect.*;
import org.junit.*;
import static org.junit.Assert.*;

/**
 * This class uses reflection to test various attributes of the Time class
 * that could be submitted by various CSE students.
 * @author Marty Stepp
 * @version CSE 331 Spring 2011, 5/27/2011
 */
public class TimeStyleTest {
	/**
	 * Fails if the student has any fields that are public.
	 */
	@Test(timeout=1000)
	public void noPublicFields() {
		for (Field f : Time.class.getFields()) {
			assertFalse(f.getName() + " should not have been public",
					Modifier.isPublic(f.getModifiers()));
		}
	}
	
	/**
	 * Fails if the student has any methods that return an int.
	 */
	@Test(timeout=1000)
	public void noIntReturns() {
		for (Method m : Time.class.getMethods()) {
			assertNotSame(m.getName() + " should not return an int",
					int.class, m.getReturnType());
		}
	}
	
	/**
	 * Fails if the student has any methods that take 4 or more parameters.
	 */
	@Test(timeout=1000)
	public void noMethodsWithTooManyParameters() {
		for (Method m : Time.class.getMethods()) {
			assertTrue(m.getName() + " takes too many parameters",
					m.getParameterTypes().length <= 3);
		}
	}
}