build(deps-dev): apply updates

[poolifier.git] / tests / deque.test.js

diff --git a/tests/deque.test.js b/tests/deque.test.js
index dec96b3582a28605fca18d24204428e9f93da4c3..290eadbfa48df38c0488faf732377aae8b0dd888 100644 (file)
--- a/tests/deque.test.js
+++ b/tests/deque.test.js
@@ -96,6 +96,26 @@ describe('Deque test suite', () => {
     expect(deque.tail).toBeUndefined()
   })
 
+  it('Verify peekFirst() behavior', () => {
+    const deque = new Deque()
+    deque.push(1)
+    deque.push(2)
+    deque.push(3)
+    expect(deque.size).toBe(3)
+    expect(deque.peekFirst()).toBe(1)
+    expect(deque.size).toBe(3)
+  })
+
+  it('Verify peekLast() behavior', () => {
+    const deque = new Deque()
+    deque.push(1)
+    deque.push(2)
+    deque.push(3)
+    expect(deque.size).toBe(3)
+    expect(deque.peekLast()).toBe(3)
+    expect(deque.size).toBe(3)
+  })
+
   it('Verify clear() behavior', () => {
     const deque = new Deque()
     deque.push(1)
@@ -123,4 +143,16 @@ describe('Deque test suite', () => {
       ++i
     }
   })
+
+  it('Verify backward() iterator behavior', () => {
+    const deque = new Deque()
+    deque.push(1)
+    deque.push(2)
+    deque.push(3)
+    let i = deque.size
+    for (const value of deque.backward()) {
+      expect(value).toBe(i)
+      --i
+    }
+  })
 })