package com.vaadin.tests.util;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;

import java.util.Iterator;

public class TestUtil {
    public static void assertArrays(Object[] actualObjects,
            Object[] expectedObjects) {
        assertEquals(
                "Actual contains a different number of values than was expected",
                expectedObjects.length, actualObjects.length);

        for (int i = 0; i < actualObjects.length; i++) {
            Object actual = actualObjects[i];
            Object expected = expectedObjects[i];

            assertEquals("Item[" + i + "] does not match", expected, actual);
        }

    }

    public static void assertIterableEquals(Iterable<?> iterable1,
            Iterable<?> iterable2) {
        Iterator<?> i1 = iterable1.iterator();
        Iterator<?> i2 = iterable2.iterator();

        while (i1.hasNext()) {
            Object o1 = i1.next();
            if (!i2.hasNext()) {
                fail("The second iterable contains fewer items than the first. The object "
                        + o1 + " has no match in the second iterable.");
            }
            Object o2 = i2.next();
            assertEquals(o1, o2);
        }
        if (i2.hasNext()) {
            fail("The second iterable contains more items than the first. The object "
                    + i2.next() + " has no match in the first iterable.");
        }
    }

    private TestUtil() {
    }
}