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package it.unimi.dsi.fastutil.objects;

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

import it.unimi.dsi.fastutil.ints.Int2IntRBTreeMap;
import org.junit.Test;

public class ObjectRBTreeSetTest {

	@Test
	public void testGet() {
		ObjectRBTreeSet s = new ObjectRBTreeSet();
		Integer o = new Integer(0);
		s.add(o);
		assertSame(o,  s.get(new Integer(0)));
	}

	@Test
	public void testAddTo() {
		Int2IntRBTreeMap a = new Int2IntRBTreeMap();
		Int2IntRBTreeMap b = new Int2IntRBTreeMap();

		// test addTo with empty map
		a.addTo(0, 1); 			// 0 -> 1
		assertEquals(1, a.get(0));

		// test addTo with empty map and weird defaultReturnValue
		b.defaultReturnValue(100);
		a.addTo(0, 0); 			// 0 -> 100
		assertEquals(100, b.get(0));

		// test addTo with existing values
		a.addTo(0, 1); 	 	  // 0 -> 2
		b.addTo(0, -100); 	// 0 -> 0
		assertEquals(2, a.get(0));
		assertEquals(0, b.get(0));

		// test addTo with overflow values
		a.put(0, Integer.MAX_VALUE);
		a.addTo(0, 1);			// 0 -> MIN_VALUE
		assertEquals(Integer.MIN_VALUE, a.get(0));

		// test various addTo operations
		a.put(0, 0);
		a.put(1, 1);
		a.put(2, 2);

		a.addTo(0, 10);			// 0 -> 10
		a.addTo(1, 9);			// 1 -> 10
		a.addTo(2, 8);			// 2 -> 10
		assertEquals(10, a.get(0));
		assertEquals(10, a.get(1));
		assertEquals(10, a.get(2));
	}
}