Behavioral\Iterator restructured

Behavioral/Iterator/Tests/IteratorTest.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace DesignPatterns\Behavioral\Iterator\Tests;
+
+use DesignPatterns\Behavioral\Iterator\Book;
+use DesignPatterns\Behavioral\Iterator\BookList;
+use DesignPatterns\Behavioral\Iterator\BookListIterator;
+use DesignPatterns\Behavioral\Iterator\BookListReverseIterator;
+
+class IteratorTest extends \PHPUnit_Framework_TestCase
+{
+
+    /**
+     * @var BookList
+     */
+    protected $bookList;
+
+    protected function setUp()
+    {
+        $this->bookList = new BookList();
+        $this->bookList->addBook(new Book('Learning PHP Design Patterns', 'William Sanders'));
+        $this->bookList->addBook(new Book('Professional Php Design Patterns', 'Aaron Saray'));
+        $this->bookList->addBook(new Book('Clean Code', 'Robert C. Martin'));
+    }
+
+    public function expectedAuthors()
+    {
+        return array(
+            array(
+                array(
+                    'Learning PHP Design Patterns by William Sanders',
+                    'Professional Php Design Patterns by Aaron Saray',
+                    'Clean Code by Robert C. Martin'
+                )
+            ),
+        );
+    }
+
+    /**
+     * @dataProvider expectedAuthors
+     */
+    public function testUseAIteratorAndValidateAuthors($expected)
+    {
+        $iterator = new BookListIterator($this->bookList);
+
+        while ($iterator->valid()) {
+            $expectedBook = array_shift($expected);
+            $this->assertEquals($expectedBook, $iterator->current()->getAuthorAndTitle());
+            $iterator->next();
+        }
+    }
+
+    /**
+     * @dataProvider expectedAuthors
+     */
+    public function testUseAReverseIteratorAndValidateAuthors($expected)
+    {
+        $iterator = new BookListReverseIterator($this->bookList);
+
+        while ($iterator->valid()) {
+            $expectedBook = array_pop($expected);
+            $this->assertEquals($expectedBook, $iterator->current()->getAuthorAndTitle());
+            $iterator->next();
+        }
+    }
+}