SiroDiaz / DataStructures

        $this->assertEquals($this->queue->size(), 5);

    }

    public function testEmpty() {

        $this->queue = new Queue();

        $this->assertTrue($this->queue->empty());

        $this->queue->enqueue(true);

        $this->assertFalse($this->queue->empty());

        $this->queue->enqueue("string");

        $this->queue->enqueue(3.14);

        $this->queue->dequeue();

        $this->queue->dequeue();

        $this->queue->dequeue();

        $this->assertTrue($this->queue->empty());

    }

    public function testPeek() {

        $this->queue = new Queue();

        $this->assertEquals($this->stack->size(), 5);

    }

    public function testEmpty() {

        $this->stack = new Stack();

        $this->assertTrue($this->stack->empty());

        $this->stack->push(true);

        $this->assertFalse($this->stack->empty());

        $this->stack->push("string");

        $this->stack->push(3.14);

        $this->stack->pop();

        $this->stack->pop();

        $this->stack->pop();

        $this->assertTrue($this->stack->empty());

    }

    public function testPeek() {

        $this->stack = new Stack();