create a Test folder for each pattern

Behavioral/Strategy/Tests/StrategyTest.php

@@ -0,0 +1,70 @@
+<?php
+
+namespace DesignPatterns\Behavioral\Strategy\Tests;
+
+use DesignPatterns\Behavioral\Strategy\DateComparator;
+use DesignPatterns\Behavioral\Strategy\IdComparator;
+use DesignPatterns\Behavioral\Strategy\ObjectCollection;
+use DesignPatterns\Behavioral\Strategy\Strategy;
+
+/**
+ * Tests for Static Factory pattern
+
+ */
+class StrategyTest extends \PHPUnit_Framework_TestCase
+{
+
+    public function getIdCollection()
+    {
+        return array(
+            array(
+                array(array('id' => 2), array('id' => 1), array('id' => 3)),
+                array('id' => 1)
+            ),
+            array(
+                array(array('id' => 3), array('id' => 2), array('id' => 1)),
+                array('id' => 1)
+            ),
+        );
+    }
+
+    public function getDateCollection()
+    {
+        return array(
+            array(
+                array(array('date' => '2014-03-03'), array('date' => '2015-03-02'), array('date' => '2013-03-01')),
+                array('date' => '2013-03-01')
+            ),
+            array(
+                array(array('date' => '2014-02-03'), array('date' => '2013-02-01'), array('date' => '2015-02-02')),
+                array('date' => '2013-02-01')
+            ),
+        );
+    }
+
+    /**
+     * @dataProvider getIdCollection
+     */
+    public function testIdComparator($collection, $expected)
+    {
+        $obj = new ObjectCollection($collection);
+        $obj->setComparator(new IdComparator());
+        $elements = $obj->sort();
+
+        $firstElement = array_shift($elements);
+        $this->assertEquals($expected, $firstElement);
+    }
+
+    /**
+     * @dataProvider getDateCollection
+     */
+    public function testDateComparator($collection, $expected)
+    {
+        $obj = new ObjectCollection($collection);
+        $obj->setComparator(new DateComparator());
+        $elements = $obj->sort();
+
+        $firstElement = array_shift($elements);
+        $this->assertEquals($expected, $firstElement);
+    }
+}