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package fj.data;
import fj.Equal;
import fj.P2;
import org.junit.Test;
import java.util.Arrays;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* Created by MarkPerry on 16/01/2015.
*/
public class ListTest {
@Test
public void objectMethods() {
int max = 5;
List<Integer> list = List.range(1, max);
assertTrue(list.equals(list));
assertTrue(list.equals(List.range(1, max)));
assertFalse(list.equals(List.single(1)));
assertFalse(list.equals(true));
assertFalse(list.equals(null));
assertTrue(List.list(1, 2).toString().equals("List(1,2)"));
}
@Test
public void integration() {
java.util.List<Integer> ul = Arrays.asList(1, 2, 3);
List<Integer> dl = List.list(ul);
assertTrue(ul.equals(dl.toJavaList()));
}
@Test
public void convertToString() {
final int n = 10000;
final StringBuilder expected = new StringBuilder("List(");
for (int i = 0; i < n; i++) {
expected.append(i);
if (i < n - 1) {
expected.append(',');
}
}
expected.append(')');
assertEquals(expected.toString(), List.range(0, n).toString());
}
@Test
public void partition() {
P2<List<Integer>, List<Integer>> p = List.range(1, 5).partition(i -> i % 2 == 0);
Equal<List<Integer>> e = Equal.listEqual(Equal.intEqual);
assertTrue(e.eq(p._1(), List.list(2, 4)));
assertTrue(e.eq(p._2(), List.list(1, 3)));
}
}