This commit is contained in:
Grzegorz Piwowarek 2016-10-05 07:50:21 +02:00
parent 05c6859412
commit 8ec4c8c265
1 changed files with 3 additions and 2 deletions

View File

@ -1,5 +1,6 @@
package com.baeldung; package com.baeldung;
import com.google.common.collect.Lists;
import org.junit.Test; import org.junit.Test;
import java.util.*; import java.util.*;
@ -38,7 +39,7 @@ public class RandomListElementTest {
@Test @Test
public void givenList_whenNumberElementsChosen_shouldReturnRandomElementsNoRepeat() { public void givenList_whenNumberElementsChosen_shouldReturnRandomElementsNoRepeat() {
Random rand = new Random(); Random rand = new Random();
List<String> givenList = new LinkedList<>(Arrays.asList("one", "two", "three", "four")); List<String> givenList = Lists.newArrayList("one", "two", "three", "four");
int numberOfElements = 2; int numberOfElements = 2;
@ -62,7 +63,7 @@ public class RandomListElementTest {
@Test @Test
public void givenList_whenRandomIndexChosen_shouldReturnElementThreadSafely() { public void givenList_whenRandomIndexChosen_shouldReturnElementThreadSafely() {
List<Integer> givenList = Arrays.asList(1, 2, 3, 4, 5, 6); List<Integer> givenList = Arrays.asList(1, 2, 3, 4, 5, 6);
int randomIndex = ThreadLocalRandom.current().nextInt(10); int randomIndex = ThreadLocalRandom.current().nextInt(10) % givenList.size();
givenList.get(randomIndex); givenList.get(randomIndex);
} }