How do you test code that uses ArrayDeque?

Testing code that utilizes Java's ArrayDeque involves ensuring that the various methods of the ArrayDeque class function correctly under different conditions. The ArrayDeque is a resizable array implementation of the Deque interface and offers efficient operations for adding, removing, and accessing elements. Below is a simple example of how to test ArrayDeque using JUnit:


    import org.junit.jupiter.api.Assertions;
    import org.junit.jupiter.api.Test;
    import java.util.ArrayDeque;

    public class ArrayDequeTest {
        @Test
        public void testAddAndRemove() {
            ArrayDeque deque = new ArrayDeque<>();
            deque.add(1);
            deque.add(2);
            deque.addFirst(0);

            Assertions.assertEquals(3, deque.size());
            Assertions.assertEquals(Integer.valueOf(0), deque.removeFirst());
            Assertions.assertEquals(Integer.valueOf(2), deque.removeLast());
        }

        @Test
        public void testPeek() {
            ArrayDeque deque = new ArrayDeque<>();
            deque.add("First");
            deque.add("Second");

            Assertions.assertEquals("First", deque.peekFirst());
            Assertions.assertEquals("Second", deque.peekLast());
        }
    }

Java, ArrayDeque, Testing, JUnit, Unit Tests, Data Structures, Collections Framework

This article provides an introduction to testing Java's ArrayDeque class. It showcases a simple method for confirming the functionality of various ArrayDeque operations using JUnit, making for robust unit testing practices.

Java ArrayDeque Testing JUnit Unit Tests Data Structures Collections Framework

How do you test code that uses ArrayDeque?

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How do you test code that uses ArrayDeque?

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